WO2022054706A1 - 被覆シリコーン部材の製造方法 - Google Patents
被覆シリコーン部材の製造方法 Download PDFInfo
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- WO2022054706A1 WO2022054706A1 PCT/JP2021/032408 JP2021032408W WO2022054706A1 WO 2022054706 A1 WO2022054706 A1 WO 2022054706A1 JP 2021032408 W JP2021032408 W JP 2021032408W WO 2022054706 A1 WO2022054706 A1 WO 2022054706A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/14—Macromolecular materials
- A61L27/18—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/28—Materials for coating prostheses
- A61L27/34—Macromolecular materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/04—Macromolecular materials
- A61L29/06—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/08—Materials for coatings
- A61L29/085—Macromolecular materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/056—Forming hydrophilic coatings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses or corneal implants; Artificial eyes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2240/00—Manufacturing or designing of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2240/001—Designing or manufacturing processes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0009—Making of catheters or other medical or surgical tubes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2379/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
- C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08J2379/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2383/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2383/04—Polysiloxanes
- C08J2383/06—Polysiloxanes containing silicon bound to oxygen-containing groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2433/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2433/10—Homopolymers or copolymers of methacrylic acid esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/24—Homopolymers or copolymers of amides or imides
- C08J2433/26—Homopolymers or copolymers of acrylamide or methacrylamide
Definitions
- the present invention relates to a method for manufacturing a coated silicone member.
- Silicone members are inexpensive, have excellent heat resistance, cold resistance, and insulation resistance, and have rubber elasticity and flexibility in a wide temperature range.
- silicone members are a material that is resistant to ultraviolet rays and heat and can be heat sterilized, photo sterilized, gamma sterilized, and EOG sterilized, medical tubes, catheter parts, valves for medical equipment, check valves, blood stop valves, contact lenses, etc. It is also used as a member of medical devices such as cell culture sheets, scaffold materials for tissue regeneration and medical electrodes for skin.
- the silicone member has high water repellency.
- it When it is mainly used as a member of a medical device, it may come into contact with water, blood, physiological saline, sweat, tears, etc., so that the high water repellency of the silicone member may be a problem.
- the silicone member When in contact with the mucous membrane in the living body or when worn on the eye, in order to improve biocompatibility, improve the affinity of the surface for water, blood, saline, sweat, tears, that is, silicone. It is important to form a coating on the surface of the member.
- Patent Document 1 a method of cross-linking a polymer having a carboxyl group and a material having an epoxide group
- Patent Document 2 a method of forming a coating using a copolymer of N-vinylpyrrolidone / acrylate salt and a cross-linking agent
- Patent Document 3 a method of forming a coating using a copolymer of N-vinylpyrrolidone / acrylate salt and a cross-linking agent
- the method for producing a coated silicone member of the present invention comprises (A) a decomposition reaction step of decomposing the surface of the silicone member, and (B) a silicone member having a decomposed surface of polycarbodiimide. It comprises a contact step b of contacting the contained solution b and a contacting step c of (C) bringing the surface-decomposed silicone member into contact with the solution c containing the polymer C, wherein the polymer C is alkyl. It is characterized by having an amide group and a hydroxyl group.
- a highly water-repellent silicone member having a surface contact angle with water of more than 110 ° is treated at a relatively low temperature such as 80 ° C. or lower. Also, on the surface of the coated silicone member, a coating showing a sufficiently low surface contact angle with respect to an aqueous solution containing a salt and a protein can be formed.
- the silicone member used in the decomposition reaction step provided in the method for producing a coated silicone member of the present invention is a silicone having a repeating unit of ⁇ Si (R 1 ) 2 -O— (where R 1 is an arbitrary organic group).
- silicone hydrogels are preferred.
- silicone hydrogel When the silicone hydrogel is used as a silicone member for an ophthalmic lens, its flexibility gives an excellent wearing feeling, and high oxygen permeability enables wearing for a longer period of time, which is preferable.
- the manufacturing method of the present invention comprises a decomposition reaction step of decomposing the surface of a silicone member.
- decomposition means chemical decomposition.
- Chemical decomposition of the surface of the silicone member includes, for example, decomposition of chemically crosslinked chains, decomposition of silicone chains (molecular chains composed of repeated bonds represented by —Si—O—), and decomposition of molecular chains other than silicone chains. Decomposition, decomposition of functional groups, etc. may be mentioned.
- Examples of the decomposition reaction step include a hydrolysis reaction step using an alkaline aqueous solution composed of an alkali and water, a decomposition reaction step using atmospheric pressure plasma treatment, and a decomposition reaction step using vacuum plasma treatment.
- the hydrolysis step using an alkaline aqueous solution is preferable in that it can be processed at a lower temperature by using a simple device.
- the alkali means a compound showing basicity in water.
- the alkali include organic alkaline compounds typified by tertiary amines or phosphine, potassium hydroxide, sodium hydroxide, calcium hydroxide, calcium carbonate, potassium hydrogencarbonate, sodium carbonate, sodium hydrogencarbonate, lithium hydrogencarbonate.
- an inorganic alkaline compound typified by sodium bisthionate (sodium hydrosulfite) or an organic metal salt-based alkaline compound such as sodium methoxydo or t-butoxypotassium can be mentioned.
- inorganic alkaline compounds are preferable, potassium hydroxide, sodium hydroxide, calcium hydroxide, calcium carbonate, potassium hydrogencarbonate or sodium hydrogencarbonate are more preferable, and water is preferable in terms of low cost and relatively high safety. Potassium oxide, sodium hydroxide, calcium hydroxide or calcium carbonate are more preferable, and sodium hydroxide is particularly preferable.
- a solvent other than water may be used in addition to the alkaline aqueous solution.
- the solvent other than water include alcohols such as methanol, ethanol, isopropanol, n-propanol, n-butanol, ethylene glycol, diethylene glycol or triethylene glycol, but isopropanol is used because of its low cost and safety. Is preferable.
- other solvents include hexane, cyclohexanone, acetone, dimethyl sulfoxide and the like, but dimethyl sulfoxide is preferable because it has a high flash point, is easy to handle, and easily mixes with an alkaline aqueous solution.
- the pH of the alkaline solution used in the decomposition reaction step is too high, the effect of a decrease in strength due to the decomposition reaction inside the silicone member is large, and if the pH is too low, the surface cannot be sufficiently hydrolyzed. It is preferably in the range of ⁇ 14.0.
- the pH is more preferably 8.5 or higher, further preferably 9.0 or higher, further preferably 9.2 or higher, and particularly preferably 9.8 or higher.
- the pH is more preferably 13.9 or less, further preferably 13.7 or less, further preferably 13.5 or less, and particularly preferably 13.3 or less.
- the pH of the alkaline solution can be measured using a pH meter (for example, Eutech pH 2700 (manufactured by Nikko Hansen Co., Ltd.)). Specifically, after adding an alkali to water and / or the above solvent, the mixture is stirred at room temperature (20 to 25 ° C.) for 30 minutes using a rotor to make the solution uniform, and then measured to obtain the second decimal place. The rounded value can be used as the pH of the alkaline solution.
- a pH meter for example, Eutech pH 2700 (manufactured by Nikko Hansen Co., Ltd.)
- the temperature is preferably 70 ° C. or higher, more preferably 90 ° C. or lower.
- Examples of the plasma used in the decomposition reaction step using atmospheric pressure plasma treatment or the decomposition reaction step using vacuum plasma treatment include oxygen plasma, nitrogen plasma, argon plasma, hydrogen plasma, microwave plasma, high frequency plasma and the like. Can be mentioned.
- Argon plasma is preferable in that the surface of many silicone members can be uniformly decomposed in a short time.
- vacuum plasma treatment using high-frequency plasma is more preferable in that a silanol group that easily interacts with polymer C or polycarbodiimide, which will be described later, can be easily formed on the surface in a short time.
- the temperature when the atmospheric pressure or vacuum plasma treatment is carried out is preferably 200 ° C. or lower, more preferably 150 ° C. or lower, still more preferably 100 ° C. or lower in that deterioration of the silicone member does not occur. Further, in order to uniformly decompose the surface of the silicone member, it is preferable to mix argon and oxygen in advance and introduce them into the plasma processing apparatus.
- the production method of the present invention comprises (B) a contact step b in which the silicone member is brought into contact with a solution b containing polycarbodiimide.
- the carbodiimide group preferably forms part of the main chain of the polycarbodiimide in that it can be easily synthesized.
- the polycarbodiimide preferably has a plurality of carbodiimide groups in one molecule in that a coated silicone member having a highly durable coating can be obtained.
- repeating units contained in polycarbodiimide are shown in the following structural formulas (1) to (4).
- the ends of the repeating units contained in the polycarbodiimides having the following structural formulas (1) to (4) may be sealed with another compound or a water-soluble resin.
- N in the formulas (1) to (4) is an integer representing the number of repetitions, and is a symbol indicating that these formulas are repeating units.
- M in the equation (4) represents an integer of 1 to 20.
- the m in the formula (4) is preferably 3 or more, more preferably 4 or more, still more preferably 5 or more, from the viewpoint of easy availability or synthesis of the raw material compound. Further, m is preferably 18 or less, more preferably 16 or less, further preferably 12 or less, and particularly preferably 6 or less.
- weight average molecular weight in the present specification means the weight average molecular weight in terms of polyethylene glycol or polyethylene oxide.
- the weight average molecular weight of the polycarbodiimide is preferably 10,000 or more, more preferably 30,000 or more, and even more preferably 45,000 or more.
- the weight average molecular weight is large to a certain extent, the polycarbodiimide is sufficiently retained on the surface of the silicone member rather than the inside, and a coated silicone member having a lower surface contact angle can be obtained.
- polycarbodiimide having a certain small weight average molecular weight is preferable in terms of low toxicity because it has high reactivity.
- the weight average molecular weight of the polycarbodiimide is preferably 1,000,000 or less, more preferably 200,000 or less, still more preferably 100,000 or less. Further, when the weight average molecular weight is small to a certain extent, the polycarbodiimide can be uniformly treated on the surface of the silicone member, and the surface can be made uniform without dripping or uneven liquid pattern.
- the weight average molecular weight can be measured by gel permeation chromatography (GPC).
- the concentration of the solution b containing polycarbodiimide is too high, the surface of the polymer C and the decomposed silicone member, which will be described later, will be uniformly covered, resulting in a surface in which dripping or a non-uniform liquid pattern can be seen. Cheap.
- the concentration is too low, the surface of the silicone member cannot be sufficiently covered.
- the concentration of polycarbodiimide in the solution b is preferably in the range of 0.001 to 5.000% by mass.
- the concentration of polycarbodiimide is more preferably 0.010% by mass or more, further preferably 0.040% by mass or more.
- the concentration of polycarbodiimide is more preferably 3.000% by mass or less, further preferably 2.000% by mass or less, further preferably 1.000% by mass or less, and 0.700% by mass. % Or less, more preferably 0.500% by mass or less, and particularly preferably 0.300% by mass or less.
- the pH of the solution b is preferably weakly alkaline in that it can form a highly durable coating.
- the pH of the solution b is preferably 7.0 to 10.0, more preferably 7.5 to 9.0, and even more preferably 7.8 to 8.5.
- the temperature of the solution b is preferably 50 ° C. or higher, more preferably 60 ° C. or higher in order to form a highly durable coating.
- 80 ° C. or lower is preferable, 70 ° C. or lower is more preferable, and 60 ° C. or lower is further preferable.
- the silicone member does not react immediately after being brought into contact with the solution b, but gradually reacts with the surface of the polymer C and the surface of the decomposed silicone member, which will be described later, to form a uniform coating. It is particularly preferable to heat the solution to 50-80 ° C. after immersing the silicone member in the solution b.
- the solution b does not react immediately after the silicone member is brought into contact with the solution b, but gradually reacts with the polymer C described later and the surface of the decomposed silicone member to form a uniform coating. It is preferably an emulsion solution.
- the solvent of the solution b include water, alcohols, ketones, ethers, an aprotic polar solvent, and a mixed solvent thereof. Of these, water and a mixed solvent of water and alcohols are preferable, and water is most preferable.
- the production method of the present invention comprises (C) a contact step c in which the silicone member is brought into contact with a solution c containing the polymer C, and the polymer C needs to have an alkylamide group and a hydroxyl group. do.
- alkylamide group means a functional group represented by the following general formula (5).
- R 1 and R 2 each independently represent a hydrogen or an alkyl group, but either R 1 or R 2 needs to be an alkyl group having 1 to 12 carbon atoms. Both R 1 and R 2 are preferably alkyl groups in that the long-term storage stability of the coated silicone member is enhanced.
- the alkyl group a methyl group having 1 to 3 carbon atoms, an ethyl group, a propyl group or an isopropyl group is preferable, and a methyl group is more preferable, in that the surface contact angle of the coated silicone member can be lowered.
- Examples of the polymer C having an alkylamide group and a hydroxyl group include a copolymer containing a monomer having an alkylamide group and a monomer having a hydroxyl group as monomer components.
- N-methyl-N-vinylacetamide, N, N-dimethylacrylamide, N, N-diethylacrylamide, N-isopropylacrylamide, or a monomer having a (meth) acrylic group is preferable.
- N, N-dimethylacrylamide is more preferable from the viewpoint of enhancing the surface slipperiness of the obtained coated silicone member.
- Examples of the monomer having a hydroxyl group include a monomer having a substituent selected from the group consisting of a carboxylic acid group, a sulfonic acid group, an alcohol group, and a phenol group, and a monomer having a carboxylic acid group or an alcohol group is preferable.
- examples of the monomer having a carboxylic acid group include methacrylic acid, acrylic acid, and itaconic acid.
- examples of the monomer having a hydroxyl group include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, and glycerol (meth) acrylate.
- a monomer having a carboxylic acid group which has high hydrophilicity and can adjust the hydrophilicity with a small amount, is preferable.
- polymer C examples include (meth) acrylic acid / N, N-dimethylacrylamide copolymer, 2-acrylamide-2-methylpropanesulfonic acid / N, N-dimethylacrylamide copolymer and the like. Meta) Acrylic acid / N, N-dimethylacrylamide copolymer is preferable.
- Polymer C may be a ternary copolymer or a multiplex copolymer in which a different monomer component is added to these copolymers.
- hydrophilic (meth) acrylates such as 2-methoxyethyl (meth) acrylate, 2-ethoxyethyl (meth) acrylate or 2-isopropoxyethyl (meth) acrylate, and the like.
- N-vinylpyrrolidone, N-vinylcaprolactam, N-vinylacetamide, N-methyl-N-vinylacetamide, N-vinylformamide, acryloylmorpholine, acrylamide and the like are preferable.
- the polymer C preferably has a 2-alkoxyethyl group from the viewpoint that the surface wettability of the coated silicone member obtained by the production method of the present invention can be maintained for a long time.
- the polymer C is preferably a ternary copolymer or a multi-way copolymer obtained by copolymerizing (meth) acrylates having a 2-alkoxyethyl group.
- Examples of (meth) acrylates having a 2-alkoxyethyl group include 2-methoxyethyl (meth) acrylate, diethylene glycol monomethyl ether (meth) acrylate, triethylene glycol monomethyl ether (meth) acrylate, and polyethylene glycol monomethyl ether (meth).
- Acrylate or a monomer in which the methoxy group of these monomers is replaced with an ethoxy group or an isopropoxy group can be mentioned.
- 2-alkoxyethyl group examples include a 2-methoxyethyl group, a 2-ethoxyethyl group, a 2-isopropoxyethyl group and the like, but a 2-methoxyethyl group is more preferable.
- the pH of the solution c is preferably acidic, more preferably 5.0 or less, still more preferably 3.5 or less, in that it has high durability and can form a coating having a low surface contact angle.
- the solvent of the solution c include water, alcohols, ketones, ethers, an aprotic polar solvent, and a mixed solvent thereof. Of these, water and a mixed solvent of water and alcohols are preferable, and water is most preferable.
- the concentration of the polymer C in the solution c is preferably in the range of 0.001 to 5.000% by mass.
- the concentration of the polymer C is more preferably 0.010% by mass or more, further preferably 0.040% by mass or more.
- the concentration of the polymer C is more preferably 3.000% by mass or less, further preferably 2.000% by mass or less, further preferably 1.000% by mass or less, and 0.700% by mass. % Or less, more preferably 0.500% by mass or less, and particularly preferably 0.300% by mass or less.
- the temperature of the solution c is preferably 50 ° C. or higher, more preferably 60 ° C. or higher in order to form a highly durable coating.
- 100 ° C. or lower is preferable, 80 ° C. or lower is preferable, 70 ° C. or lower is more preferable, and 60 ° C. is more preferable. The following is more preferable.
- the above (A) decomposition reaction step, (B) contact step b, (C) contact step c are carried out in the order of (A) (B) (C), or (A) (C) ( Perform in the order of B). It is more preferable to perform (A), (B) and (C) in this order. By performing these steps in this order, a highly durable coating can be easily formed.
- (D) the silicone member is brought into contact with a solution d containing the polycarbodiimide and the polymer C.
- the step d may be provided.
- the pH of the prepared solution d is preferably alkaline, more preferably 7.0 to 13.5, and 8.0 to 12.0 when the reaction between the polymer C and the carbodiimide is allowed to proceed by heating instead of room temperature. Is more preferable, and 9.5 to 10.5 is particularly preferable.
- the temperature of the solution d is preferably 50 ° C. or higher, more preferably 60 ° C. or higher in order to form a highly durable coating.
- the surface-decomposed silicone member does not react immediately after being brought into contact with the solution d, but gradually reacts with the surface of the surface-decomposed silicone member to form a uniform coating. It is preferable to heat the solution to 50 to 80 ° C. after immersing the silicone member in the solution d.
- the solution d does not react immediately after the silicone member whose surface has been decomposed is brought into contact with the solution d, but gradually reacts with the surface of the silicone member after the decomposition reaction step to form a uniform and durable coating.
- An emulsion solution is preferable in that it can be formed.
- the solvent of the solution d include water, alcohols, ketones, ethers, an aprotic polar solvent, and a mixed solvent thereof. Of these, water and a mixed solvent of water and alcohols are preferable, and water is most preferable.
- the concentration of polycarbodiimide in the solution d is preferably in the range of 0.001 to 5.000% by mass.
- the concentration of polycarbodiimide is more preferably 0.010% by mass or more, further preferably 0.040% by mass or more.
- the concentration of polycarbodiimide is more preferably 3.000% by mass or less, further preferably 2.000% by mass or less, further preferably 1.000% by mass or less, and 0.700% by mass. % Or less, more preferably 0.500% by mass or less, and particularly preferably 0.300% by mass or less.
- the concentration of polymer C in solution d is preferably in the range of 0.001 to 5.000% by mass.
- the concentration of the polymer C is more preferably 0.010% by mass or more, further preferably 0.040% by mass or more.
- the concentration of the polymer C is more preferably 3.000% by mass or less, further preferably 2.000% by mass or less, further preferably 1.000% by mass or less, and 0.700% by mass. % Or less, more preferably 0.500% by mass or less, and particularly preferably 0.300% by mass or less.
- the temperature of the solution d is preferably 50 ° C. or higher, more preferably 60 ° C. or higher in order to form a highly durable coating.
- 100 ° C. or lower is preferable, 80 ° C. or lower is preferable, 70 ° C. or lower is more preferable, and 60 ° C. is more preferable. The following is more preferable.
- the above (A) decomposition reaction step and (D) contact step d are performed in the order of (A) and (D).
- a highly durable coating is likely to be formed.
- the above solution c and the above solution d further contain a polymer having a carboxylic acid group.
- a polymer having a carboxylic acid group can form a durable coating by forming a complex with a copolymer having an alkylamide structure.
- the polymer having a carboxylic acid group may be a homopolymer or a copolymer, but in the case of a copolymer, a polymer containing no alkylamide structural unit "has a carboxylic acid group". "Polymer”.
- the polymer having a carboxylic acid group is preferably composed of only a monomer component having a carboxylic acid group, and a homopolymer is more preferable.
- polymer having a carboxylic acid group examples include polymethacrylic acid, polyacrylic acid, polyvinylbenzoic acid, poly (thiophene-3-acetic acid), polymaleic acid, poly (meth) acryloyloxyethyl-succinic acid, and poly (meth). ) Acryloyloxyethyl hexahydrophthalic acid, poly (meth) acryloyloxyethyl-phthalic acid, poly (meth) acryloyloxyethyl-2-hydroxyethyl-phthalic acid, polynorbornenecarboxylic acid or poly (meth) acryloyloxy Examples thereof include ethyl succinate or salts of these polymers.
- the weight average molecular weight of the polymer having a carboxylic acid group contained in the above solution c and the above solution d is preferably 10,000 or more and 500,000 or less.
- the weight average molecular weight of the polymer having a carboxylic acid group is preferably 10,000 or more, preferably 100,000 or more, in order to form a coating having high surface slipperiness and durability against scrubbing. More preferably, it is more preferably 200,000 or more. Further, in order to form a uniform coating, it is preferably 500,000 or less, more preferably 400,000 or less, and even more preferably 300,000 or less. Any combination of the lower limit value and the upper limit value may be used.
- the manufacturing method of the present invention may further include an immobilization step of fixing the silicone member to the surface of the (X) base material.
- the base material is a molded body different from the above-mentioned silicone member, and may be made of various synthetic resins, natural resins, glass, ceramics, metals, wood and the like.
- (X) As a method of fixing the silicone member to the surface of the base material, for example, a method of molding the silicone member using a pair of molding dies (molding dies) and then removing only one of the molding dies is preferable. .. In this case, the molding and fixing steps of the silicone member can be carried out at the same time.
- the other molding mold in which the silicone member is fixed to the surface corresponds to the (X) base material.
- the contact step b, the contact step c, or the decomposition step may be carried out while the silicone member is fixed to the surface of the (X) base material.
- the coated silicone member obtained by the production method of the present invention is, for example, an intraocular lens, an artificial cornea, an ocular lens such as a corneal inlay or a corneal onlay, a skin covering material, a wound covering material, a skin protective material, and a skin agent. It is suitably used as a carrier, an infusion tube, a gas transport tube, a drainage tube, a blood circuit, a covering tube, a catheter, a stent, a sheath, a tube connector or an access port.
- MEA manufactured by Tokyo Kasei Kogyo Co., Ltd.
- 2-methoxyethyl acrylate DMAA manufactured by Tokyo Kasei Kogyo Co., Ltd.
- N N-dimethylacrylamide
- 164B bifunctional silicone monomer, manufactured by Shinetsu Chemical Industry Co., Ltd., X-22-164B ( ⁇ , ⁇ -bis (3-methacryloxypropyl) polydimethylsiloxane), functional group equivalent 1600
- FM0711 Linear polymerizable silicone compound, manufactured by JNC Corporation, "Silaplane” (registered trademark) (polydimethylsiloxane monomethacrylate), average molecular weight 1000
- NB UV absorber 2- (2'-hydroxy-5'-methacryloyloxyethylphenyl) -2H-benzotriazole RB: Arran Chemical Co., manufactured by Tokyo Chemical Industry Co., Ltd.
- phosphate buffered saline 16 g of sodium chloride, 0.4 g of potassium chloride, 2.88 g of disodium hydrogen phosphate, 0.48 g of potassium dihydrogen phosphate, and 2 L of RO water were weighed in a 2 L Erlenmeyer flask. After inserting a stirrer and stirring well to confirm that the reagent has dissolved, filtration is performed using a polyether sulfone filter (EXPRESS PLUS PES 22UM 45MM manufactured by Merck KGaA) and a vacuum pump to carry out phosphoric acid. A buffered saline solution (PBS) was obtained.
- PBS polyether sulfone filter
- a circular sheet-shaped silicone member A having a thickness of 13 mm and a thickness of about 100 ⁇ m was obtained.
- the surface contact angle A of the silicone member A was measured by the method described later and found to be 115 °, showing high water repellency.
- the silicone member A was immersed in this mixed aqueous solution at 60 ° C. for 30 minutes. After cooling to room temperature, the silicone member A was taken out from the mixed aqueous solution and lightly shake-washed in PBS. It was immersed in clean PBS, sterilized by heating at 121 ° C. for 30 minutes, and stored at room temperature to obtain a coated silicone member.
- the weight average molecular weight of the polymer used (including polycarbodiimide) was measured under the conditions shown below.
- ⁇ (A) Surface contact angle measurement> Immerse the coated silicone member in PBS at 25 ° C for at least 1 day. After removing the coated silicone member from the above-mentioned 25 ° C PBS, immediately sandwich it with two water-absorbent gauze (for example, "Heise” (registered trademark) gauze VP-150, manufactured by Ozu Corporation) from above and below, and lightly press it down. The water on the surface was removed. The contact angle was measured as soon as possible using the automatic contact angle DropMaster DM-500 (manufactured by Kyowa Interface Science Co., Ltd.). PBS was used as the droplet for measurement. The surface contact angle was measured 30 seconds after the droplets (1 ⁇ L) were brought into contact with each other.
- two water-absorbent gauze for example, "Heise” (registered trademark) gauze VP-150, manufactured by Ozu Corporation
- ⁇ (B) Durability test Surface contact angle> 100 g of PBS, 0.06 g of lysozyme (derived from egg white, manufactured by Fuji Film Wako Pure Chemical Industries, Ltd.), 0.08 g of ⁇ -lactoglobulin (derived from human serum, manufactured by Fuji Film Wako Pure Chemical Industries, Ltd.), mucin (derived from bovine submandibular gland) , Fuji Film Wako Pure Chemical Industries, Ltd.) 0.015 g was stirred and dissolved to prepare a solution (artificial tears). The coated silicone member was immersed in artificial tears in a beaker at room temperature for 24 hours or longer.
- the coated silicone member was pulled up from the artificial tears, placed on the palm, and 5 to 6 drops of artificial tears were dropped onto the coated silicone member with a pipette.
- the surface of the coated silicone member was scrubbed 200 times back and forth with the palm and the pad of the index finger and immersed in PBS. Then, the surface contact angle was measured.
- the coated silicone member was removed from PBS and immersed in Zudan Black solution for 5 minutes.
- the coated silicone member was shaken and washed in warm water at 50 ° C. in a 100 mL beaker, and then the coated silicone member was taken out and the following visual evaluation was carried out.
- A is the best because the surface hydrophilicity is maintained most, and E is the worst because the surface hydrophilicity is lost.
- E An area of 90% or more of the surface of the coated silicone member is dyed.
- ⁇ (D) Durability test Hydrophilic evaluation>
- the coated silicone member is pre-immersed in PBS.
- the coated silicone member was pulled up from the PBS, placed on the palm, and 5 to 6 drops of PBS was dropped onto the coated silicone member with a pipette.
- the surface of the coated silicone member was scrubbed 200 times back and forth with the palm and the pad of the index finger and immersed in PBS.
- 0.015 g of Zudan Black B (manufactured by Fuji Film Wako Pure Chemical Industries, Ltd.) and 3 g of D-alpha-Tocopherol manufactured by Tokyo Chemical Industry Co., Ltd.) were measured in a vial and stirred well to prepare a Zudan Black solution.
- the coated silicone member was removed from PBS and immersed in Zudan Black solution for 5 minutes.
- the coated silicone member was shaken and washed in warm water at 50 ° C. in a 100 mL beaker, and then the coated silicone member was taken out and the following visual evaluation was carried out.
- A No stain is seen on the surface of the coated silicone member.
- B Staining is observed at the end of a very small amount of dots or coated silicone member
- C Area of 10% or more and less than 30% of the surface of the coated silicone member is dyed.
- D An area of 30% or more and less than 90% of the surface of the coated silicone member is dyed.
- E An area of 90% or more of the surface of the coated silicone member is dyed.
- a coated silicone member was immersed in PBS in a glass petri dish, and an LED lamp was irradiated from above to visually observe the surface.
- A has the best appearance and E has the worst appearance.
- A The surface of the coated silicone member is uniform and transparent.
- B The surface of the coated silicone member is uniform, but very slight diffused reflection of light is observed.
- C The surface of the coated silicone member is uniform, but slight diffused reflection of light is observed.
- D There is unevenness on a part of the surface of the coated silicone member, and diffused reflection of light is observed.
- E The entire surface of the coated silicone member is uneven, and diffused reflection of light is observed.
- Table 1 shows the results of the above measurements and tests.
- a silicone member was prepared by coating in the same manner as in Example 1. The pH of the solution was measured at Eutech pH 2700.
- Example 8 The same procedure as in Example 1 was carried out except that the solution at 40 ° C. was used in each of the steps (A), (B) and (C).
- Example 9 The same procedure as in Example 1 was carried out except that the solution at 70 ° C. was used in each of the steps (A), (B) and (C).
- Example 10 It was carried out in the same manner as in Example 1 except that the solution at room temperature was used in each of the steps (A), (B) and (C).
- Example 11 The same procedure as in Example 5 was carried out except that the solution at 50 ° C. was used in each of the steps (A), (B) and (C).
- Example 12 The same procedure as in Example 1 was carried out except that the solution at 90 ° C. was used in each of the steps (A), (B) and (C).
- Example 13 2-methoxyethyl acrylate / N, N-dimethylacrylamide / acrylic acid copolymer (copolymer ratio 2/7/1 [molar ratio], weight average molecular weight 1,040,000) and polyacrylic acid (product name AC- 10H, manufactured by Toa Synthetic Co., Ltd., weight average molecular weight 380,000), 1% by mass% N, N-dimethylacrylamide / acrylic acid copolymer (copolymer ratio 2/1 [molar ratio]) aqueous solution was carried out in the same manner as in Example 1 except that the above was used.
- Example 14 Gradually add sodium hydroxide powder to 1% by mass "carbodilite” V-02 (polycarbodiimide, weight average molecular weight 86,000) aqueous solution instead of 1% by mass "carbodilite” V-02 aqueous solution.
- the same procedure as in Example 1 was carried out except that a solution having a pH of 9.5 was used.
- Example 15 Gradually add sodium hydroxide powder to 1% by mass "carbodilite” V-02 (polycarbodiimide, weight average molecular weight 86,000) aqueous solution instead of 1% by mass "carbodilite” V-02 aqueous solution.
- the procedure was carried out in the same manner as in Example 1 except that a solution having a pH of 10.5 was used.
- Example 16 Same as Example 1 except that a solution in which citric acid was gradually added to a 1% by mass "carbodilite” V-02 aqueous solution and the pH was 6.5 was used instead of the 1% by mass "carbodilite” V-02 aqueous solution. It was carried out in.
- Example 17 (B) Except for using 1% by mass "carbodilite” V-02-L (manufactured by Nisshinbo Chemical Co., Ltd., polycarbodiimide, weight average molecular weight 42,000) aqueous solution instead of 1% by mass "carbodilite” V-02 aqueous solution. Was carried out in the same manner as in Example 5.
- Example 18 MEA 2.2 g, FM0711 4.3 g, DMAA 2.5 g, 164B 1.0 g, NB 0.05 g, RB 0.002 g, IC-819 0.02 g, and TAA 4.0 g were mixed well. This mixture was filtered through a membrane filter (0.45 ⁇ m) to remove insoluble matters to obtain a monomer composition. This monomer composition is injected into a pair of molding dies and irradiated with light (1.01 mW / cm 2 , 20 minutes) using a fluorescent lamp (manufactured by Toshiba, FL-6D, daylight color, 6W, 4 pieces) in a nitrogen atmosphere. ) And polymerized. Only one mold was removed.
- a fluorescent lamp manufactured by Toshiba, FL-6D, daylight color, 6W, 4 pieces
- This mixed aqueous solution was heated at 60 ° C. for 30 minutes to immerse the silicone member A. After cooling to room temperature, the silicone member A was taken out from the mixed aqueous solution and lightly shake-washed in PBS. It was immersed in fresh PBS, sterilized by heating at 121 ° C. for 30 minutes, and stored at room temperature to obtain a coated silicone member.
- Table 1 The results of the same measurements and tests as in Example 1 are shown in Table 1.
- Example 20 (A) The silicone member A was immersed in an aqueous solution of sodium hydroxide having a concentration of 0.25 (N) and heated at 60 ° C. for 30 minutes to carry out a hydrolysis reaction. After cooling to room temperature, the silicone member A was taken out from the solution and lightly shake-washed in PBS.
- (D) "Carbodilite” (registered trademark) V-02 (manufactured by Nisshinbo Chemical Co., Ltd., polycarbodiimide, weight average molecular weight 86,000, pH 8.2) in an amount of 1% by mass, 2-methoxyethyl acrylate / N, N.
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Abstract
Description
本発明の被覆シリコーン部材の製造方法が備える分解反応工程に供されるシリコーン部材とは、-Si(R1)2-O-の繰り返し単位(ただしR1は任意の有機基)を有する、シリコーン樹脂からなる部材をいう。シリコーン樹脂としては、例えば、シリコーンゴム、シリコーン樹脂、アクリルシリコーン又はシリコーンハイドロゲル等が挙げられる。
本発明の製造方法は、シリコーン部材の表面を分解する、分解反応工程を備える。ここで「分解」とは、化学分解をいう。シリコーン部材の表面の化学分解としては、例えば、化学架橋鎖の分解、シリコーン鎖(-Si-O-で表される結合の繰返しで構成される分子鎖)の分解、シリコーン鎖以外の分子鎖の分解、又は、官能基の分解等が挙げられる。分解反応工程としては、例えば、アルカリと水とからなるアルカリ水溶液を用いた加水分解反応工程、大気圧プラズマ処理を用いた分解反応工程、又は、真空プラズマ処理を用いた分解反応工程が挙げられる。
本発明の製造方法は、(B)上記シリコーン部材を、ポリカルボジイミドを含有する溶液bに接触させる、接触工程bを備える。ここで「ポリカルボジイミド」とは、分子中にカルボジイミド基である(-N=C=N-)構造を有する高分子化合物をいう。カルボジイミド基は、簡便に合成できるという点において、ポリカルボジイミドの主鎖の一部を形成していることが好ましい。またポリカルボジイミドは、耐久性の高い被覆を有する被覆シリコーン部材を得ることができるという点で、1分子中に複数のカルボジイミド基を有することが好ましい。ポリカルボジイミドに含まれる繰り返し単位の例を、下記構造式(1)~(4)に示す。なお下記構造式(1)~(4)のようなポリカルボジイミドに含まれる繰り返し単位の末端は、他の化合物や水溶性樹脂にて封止されていても構わない。式(1)~(4)中のnは繰り返し数を表す整数であり、これらの式が繰り返し単位であることを示す記号である。式(4)中のmは1~20の整数を表す。
本発明の製造方法は、(C)上記シリコーン部材を、ポリマーCを含有する溶液cに接触させる、接触工程cと、を備え、上記ポリマーCが、アルキルアミド基及び水酸基を有することを必要とする。
別態様の本発明の製造方法では、上記の接触工程bと上記の接触工程cとに代えて、(D)上記シリコーン部材を、ポリカルボジイミドとポリマーCとを含有する溶液dに接触させる、接触工程dを備えても構わない。調製した溶液dのpHは、ポリマーCとカルボジイミドとの反応を室温ではなく加熱により進行させる場合、アルカリ性であることが好ましく、7.0~13.5がより好ましく、8.0~12.0がさらに好ましく、9.5~10.5が特に好ましい。溶液dの温度は、耐久性の高い被覆を形成するために、50℃以上が好ましく、60℃以上がより好ましい。一方で、塩とタンパク質とを含む水溶液に対して十分に低い表面接触角を示す被覆シリコーン部材を得るために、80℃以下が好ましく、70℃以下がより好ましく、60℃以下がさらに好ましい。中でも、表面が分解されたシリコーン部材を溶液dに接触させた後に直ちには反応せず、表面が分解されたシリコーン部材の表面と徐々に反応し、均一な被覆を形成できるという点で、室温でシリコーン部材を溶液dに浸漬させた後に、50~80℃に溶液を加熱することが好ましい。
上記の溶液c及び上記の溶液dは、さらにカルボン酸基を有するポリマーを含有することが好ましい。カルボン酸基を有するポリマーが、アルキルアミド構造を有する共重合体との複合体を形成することにより、耐久性のある被覆を形成することができる。なお、カルボン酸基を有するポリマーは単独重合体であっても、共重合体であっても構わないが、共重合体の場合は、アルキルアミド構造単位を含まないものを「カルボン酸基を有するポリマー」とする。カルボン酸基を高密度で含有できる点で、カルボン酸基を有するポリマーとしては、カルボン酸基を有するモノマー成分のみからなるものが好ましく、単独重合体がより好ましい。
本発明の製造方法は、(X)基材の表面に上記シリコーン部材を固定する、固定化工程をさらに備えても構わない。ここで基材とは、上記シリコーン部材とは別の成型体であり、各種合成樹脂、天然樹脂、ガラス、セラミック、金属、木材等の材質であってよい。(X)基材の表面にシリコーン部材を固定する方法としては、例えば、一対の成型用の型(成型型)を用いて、シリコーン部材を成型した後、一方の成型型のみを取り除く方法が好ましい。この場合、シリコーン部材の成型と固定工程とが同時に実施できる。またこの場合、シリコーン部材が表面に固定されたままの他方の成型型が、上記(X)基材に相当する。さらにこの場合、(X)基材の表面にシリコーン部材を固定したまま、接触工程b、接触工程c又は分解工程を実施しても構わない。
本発明の製造方法により得られる被覆シリコーン部材は、例えば、眼内レンズ、人工角膜、角膜インレイ若しくは角膜オンレイ等の眼用レンズ、皮膚用被覆材、創傷被覆材、皮膚用保護材、皮膚用薬剤担体、輸液用チューブ、気体輸送用チューブ、排液用チューブ、血液回路、被覆用チューブ、カテーテル、ステント、シース、チューブコネクター又はアクセスポートとして好適に用いられる。
MEA:東京化成工業株式会社製、2-メトキシエチルアクリレート
DMAA:東京化成工業株式会社製、N,N-ジメチルアクリルアミド
164B:2官能性シリコーンモノマー、信越化学工業株式会社製、X-22-164B(α,ω-ビス(3-メタクリルオキシプロピル)ポリジメチルシロキサン)、官能基当量1600
FM0711:直鎖状の重合性シリコーン化合物、JNC株式会社製、“サイラプレーン”(登録商標)(ポリジメチルシロキサンモノメタクリレート)、平均分子量1000
NB:東京化成工業株式会社製、紫外線吸収剤2-(2’-ヒドロキシ-5’-メタクリロイルオキシエチルフェニル)-2H-ベンゾトリアゾール
RB:Arran Chemical Co.LTD製、着色剤Reactive Blue246(1,4-ビス[4-(2-メタクリルオキシエチル)フェニルアミノ]アントラキノン)
IC-819:チバ・スペシャルティ・ケミカルズ製、光開始剤“イルガキュア”(登録商標)819(フェニルビス(2,4,6-トリメチルベンゾイル)フォスフィンオキサイド)(アシルフォスフィンオキサイド系重合開始剤である。)
TAA:非重合性溶媒、東京化成工業株式会社製、tert-アミルアルコール。
2L三角フラスコに塩化ナトリウム16g、塩化カリウム0.4g、リン酸水素二ナトリウム2.88g、リン酸二水素カリウム0.48g、およびRO水2Lを計り取った。ここに撹拌子を入れてよく撹拌し、試薬が溶解したことを確認した後に、ポリエーテルスルホンフィルター(Merck KGaA社製、EXPRESS PLUS PES 22UM 45MM)と真空ポンプとを用いて濾過を行い、リン酸緩衝生理食塩水(PBS)を得た。
MEA 2.2g、FM0711 4.3g、DMAA 2.5g、164B 1.0g、NB 0.05g、RB 0.002g、IC-819 0.02g、TAA 4.0gをよく混合した。この混合物をメンブレンフィルター(0.45μm)でろ過して不溶分を除いてモノマー組成物を得た。このモノマー組成物を成型型に注入し、窒素雰囲気下で蛍光ランプ(東芝社製、FL-6D、昼光色、6W、4本)を用いて光照射(1.01mW/cm2、20分間)して重合した。重合後にイソプロピルアルコール:水=55:45(混合前の体積比)の混合液中に浸漬して、60℃で1時間加温して成型体を剥離した。その後、得られた成型体を新しいイソプロピルアルコール:水=55:45(混合前の容積比)に浸漬し、60℃で3時間加熱し、抽出を実施した。
(A)シリコーン部材Aを0.25規定(N)の水酸化ナトリウム水溶液に浸漬させ、60℃で30分加熱し、加水分解反応を実施した。室温に冷却後、溶液からシリコーン部材Aを取り出し、PBS中で軽く揺動洗浄を実施した。(B)1質量%“カルボジライト”(登録商標)V-02水溶液(日清紡ケミカル株式会社製、ポリカルボジイミド、重量平均分子量86,000、pH=8.2)を調製し、シリコーン部材Aを水溶液に60℃で30分浸漬させた。冷却後、水溶液からシリコーン部材Aを取り出し、PBS中で軽く揺動洗浄を実施した。(C)1質量%の2-メトキシエチルアクリレート/N,N-ジメチルアクリルアミド/アクリル酸共重合体(共重合比2/7/1〔モル比〕、重量平均分子量1,040,000)の水溶液、及び1質量%のポリアクリル酸(製品名AC-10H、東亞合成株式会社製)の水溶液を、2:1.7(質量比)にて混合した水溶液を調製した。なおポリアクリル酸は、カルボン酸基を有するポリマーである。シリコーン部材Aをこの混合水溶液に60℃で30分浸漬させた。室温に冷却後、混合水溶液からシリコーン部材Aを取り出し、PBS中で軽く揺動洗浄を実施した。清浄なPBSに浸漬して121℃で30分加熱滅菌を実施し、室温にて保管し、被覆シリコーン部材を得た。
装置:島津製作所製、Prominence GPCシステム
ポンプ:LC-20AD、オートサンプラ:SIL-20AHT
カラムオーブン:CTO-20A、検出器:RID-10A
カラム:東ソー社製、GMPXW(内径7.8mm×30cm、粒子径13mm)
溶媒:水/メタノール=1/1(0.1N:硝酸リチウム添加)
流速:0.5mL/分
測定時間:30分、サンプル濃度:0.1質量%、注入量:20μL
標準サンプル:Agilent社製、ポリエチレンオキシド標準サンプル(100~1,258,000)。
25℃のPBSに被覆シリコーン部材を1日以上浸漬する。被覆シリコーン部材を上記25℃のPBSから取り出した後、速やかに2枚の吸水性ガーゼ(例えば“ハイゼ”(登録商標)ガーゼVP-150、小津産業株式会社製)で上下から挟み、軽く押さえ付けて表面の水を取り除いた。自動接触角DropMasterDM-500(協和界面科学株式会社製)を用いて、可及的速やかに接触角を測定した。測定用の液滴としてはPBSを用いた。液滴(1μL)を接触させてから30秒後の表面接触角を測定した。
PBS 100gにリゾチーム(卵白由来、富士フィルム和光純薬株式会社製)0.06g、γ-ラクトグロブリン(人血清由来、富士フィルム和光純薬株式会社製)0.08g、ムチン(ウシ顎下腺由来、富士フィルム和光純薬株式会社製)0.015gを撹拌溶解させた溶液(人工涙液)を調製した。被覆シリコーン部材を、室温でビーカー中の人工涙液に24時間以上浸漬した。その後、被覆シリコーン部材を人工涙液から引き上げ、手のひらにのせて、ピペットで5~6滴の人工涙液を被覆シリコーン部材に滴下した。手のひらと人差し指の腹で往復200回、被覆シリコーン部材表面を擦り洗いし、PBSに浸漬した。その後、表面接触角を測定した。
ズダンブラックB(富士フィルム和光純薬株式会社製)0.015g、D-alpha-Tocoferol(東京化成工業株式会社製)3gをバイアル瓶に測り取り、よく撹拌しズダンブラック溶液とした。被覆シリコーン部材をPBSから取り出し、ズダンブラック溶液に5分間浸漬した。100mLビーカーに入れた50℃の温水中で被覆シリコーン部材を揺動させ洗浄した後、被覆シリコーン部材を取り出し下記の目視評価を実施した。下記評価基準においてAは最も表面親水性が維持されており良好であり、Eは表面親水性が失われており最も不良である。
A:被覆シリコーン部材表面に染色が見られない。
B:ごく少量の点状もしくは被覆シリコーン部材端部に染色が見られる
C:被覆シリコーン部材表面の1割以上、3割未満の面積が染色されている。
D:被覆シリコーン部材表面の3割以上、9割未満の面積が染色されている。
E:被覆シリコーン部材表面の9割以上の面積が染色されている。
被覆シリコーン部材をあらかじめPBSに浸漬しておく。被覆シリコーン部材をPBSから引き上げ、手のひらにのせて、ピペットで5~6滴のPBSを被覆シリコーン部材に滴下した。手のひらと人差し指の腹で往復200回、被覆シリコーン部材表面を擦り洗いし、PBSに浸漬した。ズダンブラックB(富士フィルム和光純薬株式会社製)0.015g、D-alpha-Tocoferol(東京化成工業株式会社製)3gをバイアル瓶に測り取り、よく撹拌しズダンブラック溶液とした。被覆シリコーン部材をPBSから取り出し、ズダンブラック溶液に5分間浸漬した。100mLビーカーに入れた50℃の温水中で被覆シリコーン部材を揺動させ洗浄した後、被覆シリコーン部材を取り出し下記の目視評価を実施した。下記評価基準においてAは最も表面親水性が維持されており良好であり、Eは表面親水性が失われており最も不良である。
A:被覆シリコーン部材表面に染色が見られない。
B:ごく少量の点状もしくは被覆シリコーン部材端部に染色がみられる
C:被覆シリコーン部材表面の1割以上、3割未満の面積が染色されている。
D:被覆シリコーン部材表面の3割以上、9割未満の面積が染色されている。
E:被覆シリコーン部材表面の9割以上の面積が染色されている。
ガラスシャーレ中のPBSに被覆シリコーン部材を浸漬させ、LEDランプを上部から照射し表面の目視観察を実施した。下記評価基準においてAは外観が最も良好であり、Eは最も外観が不良である。
A:被覆シリコーン部材表面が均一で、透明である。
B:被覆シリコーン部材表面は均一であるが、ごくわずか光の乱反射が認められる。
C:被覆シリコーン部材表面は均一であるが、軽度の光の乱反射が認められる。
D:被覆シリコーン部材表面の一部にむらがあり、光の乱反射が認められる。
E:被覆シリコーン部材表面の全体にむらがあり、光の乱反射が認められる。
1質量%“カルボジライト”V-02水溶液の代わりに、エマルジョン溶液である1質量%“カルボジライト”E-02(日清紡ケミカル株式会社製、ポリカルボジイミド、pH=8.5)水溶液を用いた以外は実施例1と同様に被覆しシリコーン部材を作製した。なお溶液のpHはEutech pH2700にて測定した。
1質量%“カルボジライト”V-02水溶液の代わりに、7質量%“カルボジライト”V-02(日清紡ケミカル株式会社製、ポリカルボジイミド、重量平均分子量86,000、pH=8.8)水溶液を用いた以外は実施例1と同様に実施した。
1質量%“カルボジライト”V-02水溶液の代わりに、3質量%“カルボジライト”V-02(日清紡ケミカル株式会社製、ポリカルボジイミド、重量平均分子量86,000、pH=8.7)水溶液を用いた以外は実施例1と同様に実施した。
1質量%“カルボジライト”V-02水溶液の代わりに、0.05質量%“カルボジライト”V-02(日清紡ケミカル株式会社製、ポリカルボジイミド、重量平均分子量86,000、pH=7.8)水溶液を用いた以外は実施例1と同様に実施した。
1質量%“カルボジライト”V-02水溶液の代わりに、0.03質量%“カルボジライト”V-02(日清紡ケミカル株式会社製、ポリカルボジイミド、重量平均分子量86,000、pH=7.7)水溶液を用いた以外は実施例1と同様に実施した。
1質量%“カルボジライト”V-02水溶液の代わりに、0.005質量%“カルボジライト”V-02(日清紡ケミカル株式会社製、重量平均分子量86,000、pH=7.5)水溶液を用いた以外は実施例1と同様に実施した。
(A)、(B)、(C)の各工程で40℃の溶液を用いた以外は実施例1と同様に実施した。
(A)、(B)、(C)の各工程で70℃の溶液を用いた以外は実施例1と同様に実施した。
(A)、(B)、(C)の各工程で室温の溶液を用いた以外は実施例1と同様に実施した。
(A)、(B)、(C)の各工程で50℃の溶液を用いた以外は実施例5と同様に実施した。
(A)、(B)、(C)の各工程で90℃の溶液を用いた以外は実施例1と同様に実施した。
2-メトキシエチルアクリレート/N,N-ジメチルアクリルアミド/アクリル酸共重合体(共重合比2/7/1〔モル比〕、重量平均分子量1,040,000)とポリアクリル酸(製品名AC-10H、東亞合成株式会社製、重量平均分子量380,000)の混合水溶液の代わりに、1質量%N,N-ジメチルアクリルアミド/アクリル酸共重合体(共重合比2/1〔モル比〕)水溶液を用いた以外は実施例1と同様に実施した。
1質量%“カルボジライト”V-02水溶液の代わりに、1質量%“カルボジライト”V-02(日清紡ケミカル株式会社製、ポリカルボジイミド、重量平均分子量86,000)水溶液に水酸化ナトリウム粉末を徐々に添加しpHを9.5とした溶液を用いた以外は実施例1と同様に実施した。
1質量%“カルボジライト”V-02水溶液の代わりに、1質量%“カルボジライト”V-02(日清紡ケミカル株式会社製、ポリカルボジイミド、重量平均分子量86,000)水溶液に水酸化ナトリウム粉末を徐々に添加しpHを10.5とした溶液を用いた以外は実施例1と同様に実施した。
1質量%“カルボジライト”V-02水溶液の代わりに、1質量%“カルボジライト”V-02水溶液にクエン酸を徐々に添加しpHを6.5とした溶液を用いた以外は実施例1と同様に実施した。
(B)1質量%“カルボジライト”V-02水溶液の代わりに、1質量%“カルボジライト”V-02-L(日清紡ケミカル株式会社製、ポリカルボジイミド、重量平均分子量42,000)水溶液を用いた以外は実施例5と同様に実施した。
MEA 2.2g、FM0711 4.3g、DMAA 2.5g、164B 1.0g、NB 0.05g、RB 0.002g、IC-819 0.02g、TAA 4.0gをよく混合した。この混合物をメンブレンフィルター(0.45μm)でろ過して不溶分を除いてモノマー組成物を得た。このモノマー組成物を一対の成型型に注入し、窒素雰囲気下で蛍光ランプ(東芝社製、FL-6D、昼光色、6W、4本)を用いて光照射(1.01mW/cm2、20分間)して重合した。一方の成型型のみを取り除いた。(A)0.05Nの水酸化ナトリウムのイソプロピルアルコール:水=55:45(混合前の体積比)溶液を調製した。この溶液中にもう一方の成型型に固定されたシリコーン部材Aを60℃で1時間加温して、シリコーン部材Aの加水分解反応と成型型からの剥離を実施した。その後、得られたシリコーン部材Aを新しいイソプロピルアルコール:水=55:45(混合前の容積比)に浸漬し、60℃で3時間加熱し、抽出を実施した。(B)1質量%“カルボジライト”V-02水溶液を調製し、シリコーン部材Aを水溶液に60℃で30分浸漬させた。冷却後、水溶液からシリコーン部材Aを取り出し、PBS中で軽く揺動洗浄を実施した。(C)1質量%の2-メトキシエチルアクリレート/N,N-ジメチルアクリルアミド/アクリル酸共重合体(共重合比2/7/1〔モル比〕、重量平均分子量1,040,000)の水溶液、および1質量%のポリアクリル酸(製品名AC-10H、東亞合成株式会社製)の水溶液を、2:1.7(質量比)にて混合した水溶液を調整した。なおポリアクリル酸はカルボン酸基を有するポリマーである。この混合水溶液を60℃で30分加熱し、シリコーン部材Aを浸漬させた。室温に冷却後、混合水溶液からシリコーン部材Aを取り出し、PBS中で軽く揺動洗浄を実施した。新しいPBSに浸漬して121℃で30分加熱滅菌を実施し、室温にて保管し、被覆シリコーン部材を得た。実施例1と同様の測定、試験を実施した結果について表1に記載した。
(A)の工程で0.01Nの水酸化ナトリウムのイソプロピルアルコール:水=55:45(混合前の体積比)溶液を用いた以外は実施例18と同様に実施した。
(A)前記シリコーン部材Aを0.25規定(N)の水酸化ナトリウム水溶液に浸漬させ、60℃で30分加熱し、加水分解反応を実施した。室温に冷却後、溶液からシリコーン部材Aを取り出し、PBS中で軽く揺動洗浄を実施した。
(D)“カルボジライト”(登録商標)V-02(日清紡ケミカル株式会社製、ポリカルボジイミド、重量平均分子量86,000、pH=8.2)を1質量%、2-メトキシエチルアクリレート/N,N-ジメチルアクリルアミド/アクリル酸共重合体(共重合比2/7/1〔モル比〕、重量平均分子量1,040,000)を1質量%、及びポリアクリル酸(製品名AC-10H、東亞合成株式会社製)を0.85質量%の濃度で溶解した混合水溶液を調製した。シリコーン部材Aをこの混合水溶液に60℃で30分浸漬させた。冷却後、混合水溶液からシリコーン部材Aを取り出し、PBS中で軽く揺動洗浄を実施した。清浄なPBSに浸漬して121℃で30分加熱滅菌を実施し、室温にて保管し、被覆シリコーン部材を得た。実施例1と同様の測定、試験を実施した結果について表1に記載した。
シリコーン部材Aを(B)1質量%“カルボジライト”V-02水溶液を調製し、シリコーン部材Aを水溶液に60℃で30分浸漬させた。冷却後、水溶液からシリコーン部材Aを取り出し、PBS中で軽く揺動洗浄を実施した。(C)1質量%の2-メトキシエチルアクリレート/N,N-ジメチルアクリルアミド/アクリル酸共重合体(共重合比2/7/1〔モル比〕、重量平均分子量1,040,000)の水溶液、および1質量%ポリアクリル酸(製品名AC-10H、東亞合成株式会社製)水溶液を、2:0.3(質量比)にて混合した水溶液を調製した。なおポリアクリル酸は、カルボン酸基を有するポリマーである。この混合水溶液を60℃で30分加熱し、シリコーン部材Aを浸漬させた。室温に冷却後、溶液からシリコーン部材Aを取り出し、PBS中で軽く揺動洗浄を実施した。新しいPBSに浸漬して121℃で30分加熱滅菌を実施し、室温にて保管し、被覆シリコーン部材を得た。実施例1と同様の測定、試験を実施した結果について表1に記載した。
(A)シリコーン部材Aを0.25Nの水酸化ナトリウム水溶液に浸漬させ、60℃で30分加熱し、加水分解反応を実施した。室温に冷却後、溶液からシリコーン部材Aを取り出し、PBS中で軽く揺動洗浄を実施した。(C)1質量%の2-メトキシエチルアクリレート/N,N-ジメチルアクリルアミド/アクリル酸共重合体(共重合比2/7/1〔モル比〕、重量平均分子量1,040,000)の水溶液、および1質量%のポリアクリル酸(製品名AC-10H、東亞合成株式会社製)の水溶液を、2:0.3(質量比)にて混合した水溶液を調製した。なおポリアクリル酸はカルボン酸基を有するポリマーである。この混合水溶液を60℃で30分加熱し、シリコーン部材Aを浸漬させた。室温に冷却後、混合水溶液からシリコーン部材Aを取り出し、PBS中で軽く揺動洗浄を実施した。新しいPBSに浸漬して121℃で30分加熱滅菌を実施し、室温にて保管し、被覆シリコーン部材を得た。実施例1と同様の測定、試験を実施した結果について表1に記載した。
(A)シリコーン部材Aを0.25Nの水酸化ナトリウム水溶液に浸漬させ、60℃で30分加熱し、加水分解反応を実施した。室温に冷却後、溶液からシリコーン部材Aを取り出し、PBS中で軽く揺動洗浄を実施した。(B)1質量%“カルボジライト”V-02水溶液を調製し、シリコーン部材Aを水溶液に60℃で30分浸漬させた。冷却後、水溶液からシリコーン部材Aを取り出し、PBS中で軽く揺動洗浄を実施した。新しいPBSに浸漬して121℃で30分加熱滅菌を実施し、室温にて保管し、被覆シリコーン部材を得た。実施例1と同様の測定、試験を実施した結果について表1に記載した。
Claims (12)
- (A)シリコーン部材の表面を分解する、分解反応工程と、
(B)表面が分解されたシリコーン部材を、ポリカルボジイミドを含有する溶液bに接触させる、接触工程bと、
(C)表面が分解されたシリコーン部材を、ポリマーCを含有する溶液cに接触させる、接触工程cと、を備え、
前記ポリマーCが、アルキルアミド基及び水酸基を有する、被覆シリコーン部材の製造方法。 - 前記溶液b及び/又は前記溶液cの温度が、50~80℃である、請求項1記載の被覆シリコーン部材の製造方法。
- 前記溶液bが、エマルジョン溶液である、請求項1又は2記載の被覆シリコーン部材の製造方法。
- 前記溶液cが、さらにカルボン酸基を有するポリマーを含有する、請求項1~3のいずれか一項記載の被覆シリコーン部材の製造方法。
- (A)シリコーン部材の表面を分解する、分解反応工程と、
(D)表面が分解されたシリコーン部材を、ポリカルボジイミドとポリマーCとを含有する溶液dに接触させる、接触工程dと、を備え、
前記ポリマーCが、アルキルアミド基及び水酸基を有する、被覆シリコーン部材の製造方法。 - 前記溶液dの温度が、50~80℃である、請求項5記載の被覆シリコーン部材の製造方法。
- 前記溶液dが、エマルジョン溶液である、請求項5又は6記載の被覆シリコーン部材の製造方法。
- 前記溶液dが、さらにカルボン酸基を有するポリマーを含有する、請求項5~7のいずれか一項記載の被覆シリコーン部材の製造方法。
- 前記ポリカルボジイミドの重量平均分子量が、45,000~200,000である、請求項1~8のいずれか一項記載の被覆シリコーン部材の製造方法。
- 前記ポリマーCが、さらに2-アルコキシエチル基を有する、請求項1~9のいずれか一項記載の被覆シリコーン部材の製造方法。
- 前記(A)分解反応工程における前記分解の方法が、加水分解である、請求項1~10のいずれか一項記載の被覆シリコーン部材の製造方法。
- (X)基材の表面に前記シリコーン部材を固定する、固定化工程をさらに備える、請求項1~11のいずれか一項記載の被覆シリコーン部材の製造方法。
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2021/032408 Ceased WO2022054706A1 (ja) | 2020-09-14 | 2021-09-03 | 被覆シリコーン部材の製造方法 |
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| Country | Link |
|---|---|
| US (1) | US20230287191A1 (ja) |
| EP (1) | EP4177669A4 (ja) |
| JP (1) | JPWO2022054706A1 (ja) |
| CN (1) | CN116097153A (ja) |
| TW (1) | TW202219597A (ja) |
| WO (1) | WO2022054706A1 (ja) |
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| JP2005060621A (ja) * | 2003-08-20 | 2005-03-10 | Rengo Co Ltd | ガスバリア性塗工剤及びこれを用いたガスバリア性フィルム |
| JP2009516026A (ja) * | 2005-11-11 | 2009-04-16 | ヒタチ ケミカル リサーチ センター インコーポレイテッド | 微細液滴パターニングを用いたマイクロテクスチャ加工によってエラストマー材料の生体適合性を改良する方法 |
| WO2014053381A1 (de) | 2012-10-01 | 2014-04-10 | Leonhard Kurz Stiftung & Co. Kg | Verfahren und vorrichtung zum beprägen einer nicht-ebenen oberfläche eines körpers mit einer übertragungslage einer heissprägefolie |
| WO2019001270A1 (zh) | 2017-06-30 | 2019-01-03 | Oppo广东移动通信有限公司 | 移动终端及其分屏控制方法、计算机可读存储介质 |
| WO2019031477A1 (ja) | 2017-08-09 | 2019-02-14 | 東レ株式会社 | 医療デバイスおよびその製造方法 |
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2021
- 2021-09-03 US US18/020,137 patent/US20230287191A1/en not_active Abandoned
- 2021-09-03 CN CN202180062443.1A patent/CN116097153A/zh active Pending
- 2021-09-03 EP EP21866665.9A patent/EP4177669A4/en not_active Withdrawn
- 2021-09-03 JP JP2021559350A patent/JPWO2022054706A1/ja active Pending
- 2021-09-03 WO PCT/JP2021/032408 patent/WO2022054706A1/ja not_active Ceased
- 2021-09-09 TW TW110133486A patent/TW202219597A/zh unknown
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| JP2005060621A (ja) * | 2003-08-20 | 2005-03-10 | Rengo Co Ltd | ガスバリア性塗工剤及びこれを用いたガスバリア性フィルム |
| JP2009516026A (ja) * | 2005-11-11 | 2009-04-16 | ヒタチ ケミカル リサーチ センター インコーポレイテッド | 微細液滴パターニングを用いたマイクロテクスチャ加工によってエラストマー材料の生体適合性を改良する方法 |
| WO2014053381A1 (de) | 2012-10-01 | 2014-04-10 | Leonhard Kurz Stiftung & Co. Kg | Verfahren und vorrichtung zum beprägen einer nicht-ebenen oberfläche eines körpers mit einer übertragungslage einer heissprägefolie |
| WO2019001270A1 (zh) | 2017-06-30 | 2019-01-03 | Oppo广东移动通信有限公司 | 移动终端及其分屏控制方法、计算机可读存储介质 |
| WO2019031477A1 (ja) | 2017-08-09 | 2019-02-14 | 東レ株式会社 | 医療デバイスおよびその製造方法 |
| WO2020095539A1 (ja) * | 2018-11-09 | 2020-05-14 | 東レ株式会社 | 医療デバイスおよびその製造方法 |
| WO2020137065A1 (ja) * | 2018-12-28 | 2020-07-02 | 株式会社朝日Fr研究所 | シリコーンゴム製親水性強化成形体、及びそれを用いた親水性強化接合体 |
| JP2021109094A (ja) * | 2020-01-08 | 2021-08-02 | 東レ株式会社 | 医療デバイスの製造方法 |
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| Title |
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| See also references of EP4177669A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4177669A4 (en) | 2024-08-14 |
| CN116097153A (zh) | 2023-05-09 |
| EP4177669A1 (en) | 2023-05-10 |
| US20230287191A1 (en) | 2023-09-14 |
| TW202219597A (zh) | 2022-05-16 |
| JPWO2022054706A1 (ja) | 2022-03-17 |
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