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WO2022208605A1 - Ruban adhésif - Google Patents

Ruban adhésif Download PDF

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Publication number
WO2022208605A1
WO2022208605A1 PCT/JP2021/013274 JP2021013274W WO2022208605A1 WO 2022208605 A1 WO2022208605 A1 WO 2022208605A1 JP 2021013274 W JP2021013274 W JP 2021013274W WO 2022208605 A1 WO2022208605 A1 WO 2022208605A1
Authority
WO
WIPO (PCT)
Prior art keywords
adhesive tape
adhesive
mass
tackifier
derived
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/013274
Other languages
English (en)
Japanese (ja)
Inventor
雄志 浅井
優紀 岡村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teraoka Seisakusho Co Ltd
Original Assignee
Teraoka Seisakusho Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Teraoka Seisakusho Co Ltd filed Critical Teraoka Seisakusho Co Ltd
Priority to PCT/JP2021/013274 priority Critical patent/WO2022208605A1/fr
Priority to TW110115016A priority patent/TWI894262B/zh
Publication of WO2022208605A1 publication Critical patent/WO2022208605A1/fr
Priority to US17/971,379 priority patent/US12378446B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J107/00—Adhesives based on natural rubber
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/38—Pressure-sensitive adhesives [PSA]

Definitions

  • the present invention relates to adhesive tapes that are suitably used for packaging, curing, and other purposes.
  • a cloth adhesive tape having a structure in which a polyethylene resin layer is provided on one side of a woven fabric using rayon spun yarn as warp and weft, and an adhesive layer is provided on the other side has been used for packaging, curing, etc. It is used in applications (for example, Patent Document 1).
  • the adhesive of the adhesive tape used for such applications is produced by masticating a rubber-based adhesive, such as natural rubber, to reduce the molecular weight, and kneading with each compounding material.
  • Cloth adhesive tapes used for packaging, curing, etc. are packed after manufacturing, delivered to retail stores or warehouses of retail stores, displayed in stores, or delivered directly to users. Therefore, there is a risk that the packaging material will stick to the tape side surface due to deformation due to contact between the tapes during delivery, or a load will be applied to the tape side surface, causing problems such as difficulty in peeling off the packaging material.
  • tapes with a thick adhesive layer are susceptible to this effect, and there is a demand for suppression of deformation and side stickiness.
  • Patent Document 2 can be cited as a technique for suppressing greenhouse gas emissions from adhesive tapes.
  • Patent Document 2 discloses a technique for suppressing greenhouse gas emissions from adhesive tapes, which uses a bio-based material for the base material.
  • the ratio of biobased materials to the entire material is low, and there is a problem that the effect of suppressing greenhouse gas emissions is limited.
  • the rubber-based adhesive used in adhesive tapes contains a large amount of heavy calcium carbonate as a filler, and has been widely used due to its low cost and availability.
  • carbon dioxide is generated due to decarboxylation of the heavy calcium carbonate, resulting in a large amount of greenhouse gas emissions.
  • the rubber-based adhesive softens the rubber component, which is the main ingredient, to improve the coating properties on the base material and the smoothness of the adhesive surface, thereby improving the adhesion to the adherend. added.
  • the mineral-oil-based plasticizers bond with natural rubber and wood-based fillers due to their molecular structure. is less likely to occur. Therefore, the bonding strength (cohesive strength) between the respective components of the adhesive cannot be obtained, and there is a problem that among the properties required for the adhesive tape, for example, the holding power is lowered.
  • the inventors of the present invention have made intensive studies to solve this problem, and as a result, have solved the problem by adopting the following configuration.
  • the pressure-sensitive adhesive tape of the present invention comprises a substrate, which is a laminate obtained by laminating a back layer on one surface of a base fabric, and an adhesive disposed on the surface of the substrate opposite to the back layer. and a layer, wherein the back layer is composed of a thermoplastic resin containing polyolefin, and the adhesive layer includes natural rubber, a wood-based filler, a plant-derived plasticizer, and a tackifier An adhesive tape containing an agent.
  • the pressure-sensitive adhesive tape of the present invention uses a plant-derived woody filler as a filler of the pressure-sensitive adhesive, so that the shape stability of the pressure-sensitive adhesive increases, and the tape is less deformed than mineral-derived fillers such as heavy calcium carbonate. It is hard to stick, and the stickiness of the side of the tape is also reduced.
  • a plant-derived plasticizer as a softening component of the adhesive, the smoothness of the adhesive surface can be maintained even if a woody filler is used, and deterioration of required properties can be suppressed.
  • since it contains more plant-derived materials than before it is possible to suppress the increase of carbon dioxide in the atmosphere due to incineration, and it is also possible to prevent carbon dioxide emissions due to decarboxylation of heavy calcium carbonate. is.
  • the pressure-sensitive adhesive tape of the present invention comprises a substrate, which is a laminate obtained by laminating a back layer on one surface of a base fabric, and an adhesive layer disposed on the surface of the substrate opposite to the back layer. is an adhesive tape having
  • the adhesive layer contains natural rubber, a wood-based filler, a plant-derived plasticizer, and a tackifier. Each component will be described below.
  • Natural rubber is solidified sap (latex) collected from a rubber tree called Hevea brasiliens. Natural rubber consists of sheet rubber that is coagulated with acids such as formic acid, dried, and made into sheets, and cup lumps that are naturally coagulated in cups used to collect latex at rubber plantations, which are crushed, washed, and dried. It is roughly classified into block rubber manufactured by post-pressing.
  • the term natural rubber in this specification does not include liquid natural rubber, which will be described later, unless otherwise specified.
  • Sheet rubber is classified according to the "International Quality and Packaging Standards for Various Grades of Natural Rubber” (commonly known as the “Green Book”), and the varieties are determined by raw materials and manufacturing methods.
  • Sheet rubber is classified into grades such as RSS#3, RSS#1, pale crepe, and sole crepe.
  • Block rubber is a natural rubber graded according to the ISO standard (ISO2000) after washing and drying the coagulated small granules of rubber and then press-molding it.
  • ISO standard ISO2000
  • TSR20 and TSR10 TSR-CV grade with hydroxylamine hydrochloride added as a viscosity stabilizer
  • TSR-L grade with sodium pyrosulfite added as an anti-tarnishing agent TSR20 and TSR10
  • TSR-CV grade with hydroxylamine hydrochloride added as a viscosity stabilizer
  • TSR-L grade with sodium pyrosulfite added as an anti-tarnishing agent.
  • any one of these grades may be used alone, or a plurality of grades may be used in combination, depending on the performance required for the pressure-sensitive adhesive. good.
  • RSS#3 and TSR-CV grade natural rubber can be mainly used for the adhesive component used in the adhesive tape of the present invention.
  • RSS #3 natural rubber has a large distribution volume and is advantageous in terms of availability and cost.
  • TSR-CV grade natural rubber has a lower viscosity than RSS etc. Smoothness can be improved.
  • the pressure-sensitive adhesive layer of the present invention contains a wood-based filler as a filler.
  • woody fillers include powdery cellulose and lignin compounds. Among them, powdered cellulose exhibits the effect of reinforcing the pressure-sensitive adhesive due to its fibrous shape.
  • the tape is bulky, it is possible to reduce material costs by reducing the amount of adhesive that occupies the tape thickness.
  • Powdered cellulose includes acid-treated cellulose obtained by pulverizing cellulose raw materials such as pulp that has been acid-hydrolyzed with mineral acids (i.e., inorganic acids) such as hydrochloric acid, sulfuric acid, and nitric acid, and pulp that has not been acid-hydrolyzed.
  • mineral acids i.e., inorganic acids
  • mechanically pulverized cellulose obtained by mechanically pulverizing cellulose raw materials such as Powdered cellulose can be appropriately selected and used according to required performance and the like.
  • the woody filler preferably has an average particle size of 1 ⁇ m or more and 50 ⁇ m or less. If the average particle size is 50 ⁇ m or less, the surface smoothness of the pressure-sensitive adhesive layer is not impaired. If the adhesive surface is not smooth, the adhesive tape may not have sufficient adhesiveness to the adherend and may not exhibit its adhesive performance sufficiently. If the average particle size is 1 ⁇ m or more, the desired bulkiness is obtained, the thickness of the adhesive layer is secured, the increase in the amount of adhesive in the tape thickness is suppressed, and the increase in material cost is suppressed. be able to.
  • the average particle diameter used here is the median diameter indicated by D50.
  • the amount of woody filler added is preferably 10 to 250 parts by mass, more preferably 50 to 150 parts by mass, per 100 parts by mass of natural rubber.
  • the amount is 10 parts by mass or more, it is possible to suppress an increase in the rubber elasticity of the pressure-sensitive adhesive and to suppress a decrease in coatability when the pressure-sensitive adhesive is applied to a substrate.
  • the content is 250 parts by mass or less, deterioration of the rubber elasticity of the pressure-sensitive adhesive can be suppressed, and deterioration of the adhesive performance can be prevented.
  • the pressure-sensitive adhesive layer of the present invention contains a plant-derived plasticizer as a softening component of the pressure-sensitive adhesive.
  • Plant-derived plasticizers include liquid natural rubber, liquid farnesene rubber, soybean oil, sunflower oil, rapeseed oil, cottonseed oil, linseed oil, corn oil, canola oil, palm oil, or modified products thereof (e.g., epoxidized bean oil, etc.) can be used. Any one of these plant-derived plasticizers may be used alone, or a plurality of types may be used in combination.
  • a plant-derived plasticizer as a plasticizer for an adhesive that uses natural rubber as the main agent and wood filler as the filler, the cohesive force between the plasticizer and other components in the adhesive component can be improved.
  • liquid natural rubber when liquid natural rubber is used as a plant-derived plasticizer, it is possible to suppress a rapid decrease in viscosity when the adhesive is blended, so that the dispersibility of each component of the adhesive is improved.
  • a vegetable oil such as soybean oil
  • both the vegetable oil and the woody filler have a polar group, so the affinity is high, and the dispersibility and cohesiveness of each component of the pressure-sensitive adhesive can be improved.
  • Liquid natural rubber is obtained by depolymerizing natural rubber.
  • Depolymerization methods include, for example, a method in which rubber molecules are cut by a mechanochemical reaction using a shearing force using a roll machine, a method in which a rubber solution is decomposed by a photochemical reaction by irradiating ultraviolet rays, and a method in which phenylhydrazine is decomposed.
  • the weight average molecular weight (Mw) of the liquid natural rubber is preferably 150,000 or less, more preferably 100,000 or less, still more preferably 50,000 or less.
  • Mw weight average molecular weight
  • the amount of the plant-derived plasticizer to be added is preferably 5 to 50 parts by mass, more preferably 10 to 30 parts by mass, per 100 parts by mass of natural rubber. If the plasticizer is 5 parts by mass or more, the decrease in wettability of the pressure-sensitive adhesive layer can be suppressed, and the deterioration of sticking properties at low temperatures can be prevented. If the amount is 50 parts by mass or less, the plasticizer does not bleed, and contamination of adherends and changes in adhesive performance over time can be suppressed.
  • the pressure-sensitive adhesive layer of the present invention contains a tackifier.
  • a plant-derived tackifier as the tackifier, the degree of bio-basedness can be further improved.
  • Plant-derived tackifiers include terpene resins, terpene phenol resins, rosin resins, rosin ester resins, and the like. Among them, terpene resins are suitable because they are highly biobased and can reduce carbon dioxide emissions. Any one type of tackifier may be used alone, or a plurality of types may be used in combination.
  • the tackifier preferably has a softening point in the range of 70°C to 150°C.
  • the softening point is 70° C. or higher, a decrease in adhesive strength can be suppressed, and side stickiness can also be suppressed.
  • the softening point is 150° C. or lower, the compatibility with natural rubber is excellent, and a decrease in adhesive strength can be suppressed.
  • the softening point of the tackifier is 80°C or higher and 125°C or lower. Although the softening point has a variation of about ⁇ 5° C. in the product catalog, the center value is the above range, and this variation is included.
  • Terpene resins include unmodified terpene polymers such as ⁇ -pinene polymer, ⁇ -pinene polymer, and limonene polymer; Examples include modified terpene polymers modified by one or more selected treatments. Examples of modified terpene polymers include terpene phenolic resins and aromatic modified terpene resins. Any one type of these may be used alone, or a plurality of types may be used in combination.
  • Rosin resins include, for example, unmodified rosins such as gum rosin, wood rosin and tall oil rosin; modification of unmodified rosins by one or more treatments selected from hydrogenation, disproportionation, polymerization, chemical modification and the like; modified rosin; and various rosin derivatives.
  • unmodified rosins such as gum rosin, wood rosin and tall oil rosin
  • modification of unmodified rosins by one or more treatments selected from hydrogenation, disproportionation, polymerization, chemical modification and the like
  • modified rosin and various rosin derivatives.
  • rosin derivatives include rosin esters obtained by esterifying unmodified rosin or modified rosin with alcohols; rosins modified with unsaturated fatty acids obtained by modifying unmodified rosin or modified rosin with unsaturated fatty acids; Fatty acid-modified unsaturated fatty acid-modified rosin esters; unmodified rosin, modified rosin, unsaturated fatty acid-modified rosins, or rosin alcohols obtained by reducing the carboxy group in unsaturated fatty acid-modified rosin esters; unmodified rosin, modified Metal salts of rosins (especially rosin esters) such as rosin and various rosin derivatives; rosins obtained by adding phenol to rosins such as unmodified rosin, modified rosin and various rosin derivatives with an acid catalyst and subjecting them to thermal polymerization.
  • rosin esters obtained by esterifying unmodified rosin or modified rosin with alcohols
  • Phenolic resin acid-modified rosins obtained by modifying unmodified rosin or modified rosin with acids such as acrylic acid, fumaric acid, or maleic acid; rosin esters modified with acids such as acrylic acid, fumaric acid, or maleic acid and acid-modified rosin esters. Any one type of these may be used alone, or a plurality of types may be used in combination.
  • the amount of tackifier added is preferably 30 to 150 parts by mass, more preferably 60 to 120 parts by mass, per 100 parts by mass of natural rubber. If the amount of the tackifier is 30 parts by mass or more, a decrease in adhesive strength can be suppressed.
  • the pressure-sensitive adhesive layer may contain ingredients known in the art in addition to the above ingredients. Examples thereof include vulcanizing agents, vulcanization accelerators, vulcanizing auxiliaries, anti-aging agents, conductive materials, peptizers, and colorants.
  • Base material As the base material used for the pressure-sensitive adhesive tape of the present invention, a base material that is a laminate obtained by laminating a backing layer on one surface of a base fabric is used.
  • Fiber materials that make up the base fabric include synthetic fibers such as polypropylene (PP), polyethylene terephthalate (PET), nylon (Ny), rayon, cotton, kapok, flax, ramie, hemp, jute, manila hemp, sisal hemp, and silk. Fibers derived from plants such as straw, coconut palm, and cupra can be mentioned. Any one or more of these fibers may be used in combination. Further, the mixed spinning of these materials is arbitrary and not particularly limited. Also, the base fabric may be in any form such as woven fabric, knitted fabric, non-woven fabric, etc., and is not particularly limited. From the viewpoint of increasing the degree of bio-basedness, the base fabric is preferably composed of plant-derived fibers, and rayon is particularly preferred.
  • the back layer is composed of a thermoplastic resin containing polyolefin.
  • Polyolefins include high-density polyethylene (HDPE), low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA), ethylene-ethyl acrylate copolymer. polymer (EEA), and the like. From the viewpoint of increasing the degree of bio-basedness, it is preferable to use bio-polyolefin.
  • biopolyolefin means polyolefin produced from plant-derived bioethanol such as sugarcane.
  • the method for producing biopolyolefin is not particularly limited, and various known methods can be employed. Commercially available biopolyethylene, for example, can be used as the biopolyolefin. Any one type of biopolyolefin may be used alone, or a plurality of types may be used in combination.
  • each material can be selected so that the degree of bio-based content is 50% or more.
  • the biobased content of the adhesive tape refers to the mass ratio of the biomass-derived component to the mass of the entire adhesive tape.
  • the biobased content of the adhesive tape can be determined according to ISO 16620-4 (Determination of biobased mass content). Specifically, the mass (A) of the entire adhesive tape and the mass (B) of the biomass-derived component are calculated, and the value is calculated by the following formula.
  • Bio-based degree (%) ⁇ mass (B) / mass (A) ⁇ x 100 The higher the degree of bio-based, the more it is possible to reduce substantial carbon dioxide emissions.
  • the pressure-sensitive adhesive tape can easily achieve a biobased content of 90% or more.
  • biomass-derived components are partly used and petroleum-derived components are used for the rest, biomass-derived components of each component Calculate the biobased content according to the percentage.
  • the biomass-derived components used in the adhesive tape of the present invention refer to renewable plant-derived organic resources, excluding materials such as fossil resources that are depleted by mining.
  • the biomass-derived component may be, for example, the above-mentioned renewable organic resource itself, or a material obtained by chemically or biologically modifying the above-mentioned organic resource or synthesizing it using the organic resource. may be
  • Biomass-derived components also release carbon dioxide when incinerated, but the amount of carbon dioxide released is the same as the amount of carbon dioxide that plants absorb from the atmosphere through photosynthesis during the growth process. can be considered to have no effect. Such a way of thinking is called carbon neutral, and by using a biomass-derived component as a constituent material of the adhesive tape, it is possible to reduce the amount of carbon dioxide.
  • the production method of the adhesive tape is not particularly limited, and it can be produced by a conventionally known method.
  • the base material is formed by molding the fibers constituting the base fabric into a desired woven fabric or the like to form the base fabric, and laminating an olefin resin on one side of the base fabric to form a back layer, thereby obtaining a base material that is a laminate.
  • any method may be used, such as laminating an olefin resin film on a base fabric and thermocompression bonding, or heat-melting an olefin resin and extruding it onto the base fabric.
  • the back layer can be formed after surface treatment is applied to the surface of the woven fabric or the like forming the laminate layer.
  • the laminate layer can also be formed on the opposite side of the backing layer of the base fabric.
  • the pressure-sensitive adhesive composition that has been mixed and prepared separately is applied to the surface of the substrate opposite to the surface on which the back layer is formed (also referred to as the "other surface") to form an adhesive layer.
  • the surface of the base material to which the pressure-sensitive adhesive composition is applied may be subjected to surface treatment in order to improve adhesion.
  • a surface treatment physical or chemical anchor treatment (AC treatment) is applied.
  • physical treatment include corona treatment, UV treatment, and sputtering treatment
  • chemical treatment include treatment of applying a resin selected from organotitanium, isocyanate, polyethyleneimine, polybutadiene, and the like. From the viewpoint of increasing the biobased content, physical treatment is preferred.
  • the pressure-sensitive adhesive layer is formed by coating with various coating devices.
  • coating devices include a calendar coater, roll coater, die coater, lip coater, Meyer bar coater, gravure coater and the like.
  • a release layer may be formed on the outer surface of the back layer to prevent the adhesive from remaining on the back side when wound into a roll.
  • the thickness of the substrate is preferably in the range of 50-500 ⁇ m, more preferably in the range of 100-300 ⁇ m. When the thickness is 100 ⁇ m or more, the rigidity of the base material is improved and the workability is improved.
  • the coating amount per side can be selected from the range of 30 to 400 g/m 2 according to the performance and application required for the adhesive tape, and the thickness of the tape can be selected according to the performance and usage required for the adhesive tape. It can be selected from the range of 80 to 900 ⁇ m depending on the application.
  • the manufactured adhesive tape is wound into a roll and cut to a specified width.
  • the cut adhesive tape is packed by protecting the sides with, for example, a polyethylene film or by individually wrapping each roll to prevent the sides of the adhesive tape from coming into contact with each other. Since the pressure-sensitive adhesive tape according to the present invention can effectively suppress stickiness on the side surface of the tape, the side surface protective film and the packaging material can be easily peeled off. Furthermore, by suppressing side stickiness, packing without using a protective film or packaging material is also possible.
  • Example 1 A woven cloth was woven using 30-count rayon yarns for both the warp and weft so as to have a warp density of 45 threads/inch and a weft density of 35 threads/inch.
  • Biomass low-density polyethylene manufactured by BRASKEM SA, trade name “SBC818”, density 0.918 g/cm 3 , hereinafter referred to as “Bio-LDPE” was applied to one surface of this woven fabric at a processing temperature of 300 ° C.
  • a substrate having a total thickness of 200 ⁇ m was produced by extrusion lamination using a T-die.
  • a pressure-sensitive adhesive composition was prepared by mixing the following base agent, filler, plasticizer and tackifier.
  • This pressure-sensitive adhesive composition was applied to the other side of the woven fabric by a calender coating machine so as to have a film thickness of 100 ⁇ m to obtain a pressure-sensitive adhesive tape having a total thickness of 300 ⁇ m.
  • the bulk density of powdered cellulose (KC Floc W-200) measured by the method described later was 0.33 g/cm 3 .
  • Example 2 In the same manner as in Example 1, except that liquid natural rubber having a weight average molecular weight (Mw) of 80,000 (manufactured by DPR INDUSTRIES INC, trade name “DPR-400”) was used as the plasticizer. Got the sticky tape.
  • Mw weight average molecular weight
  • Example 3 A pressure-sensitive adhesive tape having a total thickness of 300 ⁇ m was obtained in the same manner as in Example 1 except that 170 parts by mass of lignin powder (Nippon Paper Industries, Sanex SCP) was used as the filler. The bulk density of the lignin powder (Sanex SCP) measured by the method described later was 0.48 g/cm 3 .
  • Example 4 An adhesive tape having a total thickness of 300 ⁇ m was obtained in the same manner as in Example 1 except that white strained soybean oil (manufactured by J-NIKKA Partners, trade name “Nikka white strained soybean oil”) was used as the plasticizer.
  • white strained soybean oil manufactured by J-NIKKA Partners, trade name “Nikka white strained soybean oil”
  • Example 5 An adhesive tape having a total thickness of 300 ⁇ m was obtained in the same manner as in Example 1, except that epoxidized soybean oil (manufactured by ADEKA, trade name “ADEKA CIZER O-103P”) was used as the plasticizer.
  • epoxidized soybean oil manufactured by ADEKA, trade name “ADEKA CIZER O-103P”
  • Example 6 An adhesive tape having a total thickness of 300 ⁇ m was obtained in the same manner as in Example 1 except that rapeseed white oil (manufactured by J-NIKKA Partners, trade name “Nikka rapeseed white oil”) was used as the plasticizer.
  • rapeseed white oil manufactured by J-NIKKA Partners, trade name “Nikka rapeseed white oil”
  • Example 7 An adhesive tape having a total thickness of 300 ⁇ m was obtained in the same manner as in Example 1 except that linseed oil (manufactured by Nisshin OilliO Co., Ltd., trade name “Nissin linseed oil”) was used as the plasticizer.
  • linseed oil manufactured by Nisshin OilliO Co., Ltd., trade name “Nissin linseed oil”
  • Example 8 A pressure-sensitive adhesive tape having a total thickness of 300 ⁇ m was obtained in the same manner as in Example 1, except that natural rubber (CV60) was used as the main agent.
  • Example 9 An adhesive tape having a total thickness of 300 ⁇ m was prepared in the same manner as in Example 1 except that 120 parts by mass of powdered cellulose (manufactured by Nippon Paper Industries Co., Ltd., trade name “KC Flock W-400”) having an average particle size of 24 ⁇ m was used as the filler. Obtained. The bulk density of powdered cellulose (KC Floc W-400) measured by the method described later was 0.46 g/cm 3 .
  • Example 10 An adhesive tape having a total thickness of 300 ⁇ m was prepared in the same manner as in Example 1 except that the filler was 80 parts by mass of cellulose powder having an average particle size of 37 ⁇ m (manufactured by Nippon Paper Industries, trade name “KC Flock W-100”). Obtained. The bulk density of powdered cellulose (KC Floc W-100) measured by the method described later was 0.29 g/cm 3 .
  • Example 11 An adhesive tape with a total thickness of 300 ⁇ m was prepared in the same manner as in Example 1 except that the filler was 40 parts by mass of powdered cellulose (manufactured by Nippon Paper Industries Co., Ltd., trade name “KC Flock W-50”) having an average particle size of 45 ⁇ m. Obtained. The bulk density of powdered cellulose (KC Flock W-400) measured by the method described later was 0.14 g/cm 3 .
  • Example 12 In the same manner as in Example 9, except that a liquid natural rubber having a weight average molecular weight (Mw) of 80,000 (manufactured by DPR INDUSTRIES, product name "DPR-400”) was used as the plasticizer. Got the sticky tape.
  • Mw weight average molecular weight
  • Example 13 A pressure-sensitive adhesive tape having a total thickness of 300 ⁇ m was obtained in the same manner as in Example 1 except that a terpene resin (trade name “YS Resin PX1250” manufactured by Yasuhara Chemical Co., Ltd., softening point 125 ⁇ 5° C.) was used as the tackifying resin.
  • a terpene resin trade name “YS Resin PX1250” manufactured by Yasuhara Chemical Co., Ltd., softening point 125 ⁇ 5° C.
  • Example 14 An adhesive tape having a total thickness of 300 ⁇ m was obtained in the same manner as in Example 1 except that a terpene resin (manufactured by Yasuhara Chemical Co., Ltd., trade name “S Resin PX800”, softening point 80 ⁇ 5° C.) was used as the tackifying resin.
  • a terpene resin manufactured by Yasuhara Chemical Co., Ltd., trade name “S Resin PX800”, softening point 80 ⁇ 5° C.
  • Comparative example 1 Low-density polyethylene (manufactured by ENEOS NUC Co., Ltd., trade name “NUC8008”, density 0.918 g/cm 3 , hereinafter referred to as “LDPE”) was applied to one surface of the same woven fabric as in Example 1 at a processing temperature of 300.
  • Example except that a film was formed by extrusion lamination using a T-die at ° C. and a total thickness of 200 ⁇ m was used as the base material, and mineral oil (manufactured by EMG Lubricants LLC, trade name “Mobiltherm 610”) was used as the plasticizer.
  • An adhesive tape having a total thickness of 300 ⁇ m was obtained in the same manner as in Example 1.
  • Comparative example 2 An adhesive tape having a total thickness of 300 ⁇ m was obtained in the same manner as in Comparative Example 1 except that 170 parts by mass of lignin powder (Nippon Paper Industries, Sanex SCP) was used as the filler.
  • lignin powder Nippon Paper Industries, Sanex SCP
  • Comparative example 3 Example 1 except that a mineral oil (manufactured by EMG Lubricants LLC, trade name "Mobiltherm 610”) was used as the plasticizer, and 200 parts by mass of ground calcium carbonate (manufactured by Maruo Calcium Co., Ltd.) having a particle size of 12 ⁇ m was used as the filler.
  • a pressure-sensitive adhesive tape having a total thickness of 300 ⁇ m was obtained in the same manner as above.
  • the bulk density of heavy calcium carbonate measured by the method described later was 0.99 g/cm 3 .
  • Comparative example 4 An adhesive tape having a total thickness of 300 ⁇ m was obtained in the same manner as in Comparative Example 3 except that 200 parts by mass of starch powder having a particle size of 10 ⁇ m (Hayashi Pure Chemical Co., Ltd., primary starch (soluble)) was used as the filler. The bulk density of the starch powder measured by the method described later was 0.65 g/cm 3 .
  • Comparative example 5 A pressure-sensitive adhesive tape having a total thickness of 300 ⁇ m was obtained in the same manner as in Example 1 except that 200 parts by mass of heavy calcium carbonate (manufactured by Maruo Calcium) having a particle size of 12 ⁇ m was used as the filler.
  • Comparative example 6 An adhesive tape having a total thickness of 300 ⁇ m was obtained in the same manner as in Comparative Example 1 except that 200 parts by mass of heavy calcium carbonate (manufactured by Maruo Calcium Co., Ltd.) having a particle size of 12 ⁇ m was used as the filler.
  • Reference example 1 An adhesive tape having a total thickness of 300 ⁇ m was prepared in the same manner as in Example 1 except that 100 parts by mass of a terpene resin (manufactured by Yasuhara Chemical Co., Ltd., trade name “YS Resin PX300”, softening point 70 ⁇ 5 ° C.) was used as a tackifier. Obtained.
  • a terpene resin manufactured by Yasuhara Chemical Co., Ltd., trade name “YS Resin PX300”, softening point 70 ⁇ 5 ° C.
  • Reference example 2 A pressure-sensitive adhesive tape having a total thickness of 300 ⁇ m was obtained in the same manner as in Example 1, except that the amount of the filler was changed to 5 parts by mass.
  • Reference example 3 A pressure-sensitive adhesive tape having a total thickness of 300 ⁇ m was obtained in the same manner as in Example 1, except that the amount of the filler was changed to 300 parts by mass.
  • the adhesive force was measured according to 10 (adhesive force) of JIS Z 0237 (testing methods for adhesive tapes and adhesive sheets). However, the test conditions were as follows. [Adhesive tape width: 10 mm, peeling angle: 180 degrees, test temperature: 23 degrees Celsius]
  • the holding power was measured according to 13 (holding power) of JIS Z 0237 (testing methods for adhesive tapes and adhesive sheets). However, the test conditions were as follows. [Adhesive tape area: width 25 mm x length 25 m, weight: 1000 g, test temperature: 40°C]
  • a tape having a width of 10 mm was adhered to a stainless steel (SUS304BA) plate under an environment of 23° C. and 50% RH, and crimped by reciprocating a 2 kg rubber roller once. After being left in the same environment for 30 minutes, a weight of 100 g was hung from the edge of the tape, and a load was applied in the direction of 90 degrees, and the time until the tape dropped at room temperature (23°C) was measured.
  • SUS304BA stainless steel
  • Yield point load A roll-shaped sample with a width of 50 mm and a length of 25 m is sandwiched between two parallel plates in which only the sides of the tape are in contact in an environment of 23 ° C and 50% RH, and a load is applied with a compression tester until it breaks. The stress was measured to obtain the yield point load value.
  • the conventional adhesive tape (Comparative Example 3) using heavy calcium carbonate as a filler and mineral oil as a plasticizer has a low degree of bio-based content and a large amount of side stickiness. It was something.
  • Comparative Examples 1 and 2 using cellulose or lignin as a filler side stickiness was reduced, but compared with each example, there was resistance when peeling off the polyethylene packing, and side stickiness was not improved. was not satisfactory.
  • Comparative Example 5 in which plant-derived liquid natural rubber was used as the plasticizer and heavy calcium carbonate was used as the filler, side stickiness was not improved.
  • Comparative Example 5 in which plant-derived liquid natural rubber was used as the plasticizer and heavy calcium carbonate was used as the filler, side stickiness was not improved.
  • side stickiness was much like in Comparative Example 3, and there was no improvement effect.
  • the present invention by using a wood-based filler and a plant-derived plasticizer, it is possible to realize a pressure-sensitive adhesive tape that has a high bio-based degree, satisfies various properties required for pressure-sensitive adhesive tape, and suppresses side stickiness. was made.
  • the pressure-sensitive adhesive tape in the present invention is difficult to deform from the result of the yield point load value, it is possible to suppress the stickiness of the side surface of the tape, and it can be used in various fields such as packaging and curing as well as conventional products. can be widely used for Moreover, since it is easy to make the bio-based content 90% or more, it is possible to achieve a high level of suppression of greenhouse effect (carbonic acid) gas emissions.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

Afin d'obtenir un ruban adhésif qui se déforme difficilement tout en satisfaisant aux caractéristiques requises attendues du ruban adhésif, telles qu'une force adhésive et une puissance de maintien, qui est en mesure de supprimer la caractère collant de surfaces latérales et qui est en mesure de supprimer la quantité d'émission de gaz à effet de serre, on utilise un ruban adhésif qui présente un matériau de base qui est un stratifié formé par stratification d'une couche arrière sur une surface d'un tissu de base et qui présente une couche d'agent adhésif disposée sur la surface du matériau de base qui est opposée à la couche arrière. La couche arrière est conçue à partir d'une résine thermoplastique comprenant une polyoléfine et la couche d'agent adhésif contient du caoutchouc naturel, une charge à base de bois, un plastifiant dérivé de plante et un agent poisseux.
PCT/JP2021/013274 2020-04-27 2021-03-29 Ruban adhésif Ceased WO2022208605A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2021/013274 WO2022208605A1 (fr) 2021-03-29 2021-03-29 Ruban adhésif
TW110115016A TWI894262B (zh) 2020-04-27 2021-04-27 黏貼帶
US17/971,379 US12378446B2 (en) 2020-04-27 2022-10-21 Adhesive tape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/013274 WO2022208605A1 (fr) 2021-03-29 2021-03-29 Ruban adhésif

Related Child Applications (2)

Application Number Title Priority Date Filing Date
PCT/JP2020/018015 Continuation-In-Part WO2021220363A1 (fr) 2020-04-27 2020-04-27 Ruban adhésif
US17/971,379 Continuation-In-Part US12378446B2 (en) 2020-04-27 2022-10-21 Adhesive tape

Publications (1)

Publication Number Publication Date
WO2022208605A1 true WO2022208605A1 (fr) 2022-10-06

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PCT/JP2021/013274 Ceased WO2022208605A1 (fr) 2020-04-27 2021-03-29 Ruban adhésif

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Country Link
WO (1) WO2022208605A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1036786A (ja) * 1996-07-24 1998-02-10 Oji Paper Co Ltd クラフト粘着テープ
JPH1161062A (ja) * 1997-08-20 1999-03-05 Oji Paper Co Ltd クラフト粘着テープ
JP2001515091A (ja) * 1997-08-29 2001-09-18 アベリー・デニソン・コーポレイション 生物学的流体を吸収する感圧接着剤
JP2002528620A (ja) * 1998-11-03 2002-09-03 ブリストル−マイヤーズ スクイブ カンパニー ハイドロコロイド接着剤組成物
JP2004250608A (ja) * 2003-02-21 2004-09-09 Toyo Ink Mfg Co Ltd 溶剤型再剥離性粘着剤および再剥離性粘着シート
WO2010095578A1 (fr) * 2009-02-20 2010-08-26 ニチバン株式会社 Composition adhésive et ruban adhésif
JP2011519989A (ja) * 2008-04-30 2011-07-14 テーザ・ソシエタス・ヨーロピア 接着テープ
WO2015056499A1 (fr) * 2013-10-15 2015-04-23 日東電工株式会社 Feuille adhésive
JP2017128651A (ja) * 2016-01-19 2017-07-27 共同印刷株式会社 剥離性感圧接着シート

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1036786A (ja) * 1996-07-24 1998-02-10 Oji Paper Co Ltd クラフト粘着テープ
JPH1161062A (ja) * 1997-08-20 1999-03-05 Oji Paper Co Ltd クラフト粘着テープ
JP2001515091A (ja) * 1997-08-29 2001-09-18 アベリー・デニソン・コーポレイション 生物学的流体を吸収する感圧接着剤
JP2002528620A (ja) * 1998-11-03 2002-09-03 ブリストル−マイヤーズ スクイブ カンパニー ハイドロコロイド接着剤組成物
JP2004250608A (ja) * 2003-02-21 2004-09-09 Toyo Ink Mfg Co Ltd 溶剤型再剥離性粘着剤および再剥離性粘着シート
JP2011519989A (ja) * 2008-04-30 2011-07-14 テーザ・ソシエタス・ヨーロピア 接着テープ
WO2010095578A1 (fr) * 2009-02-20 2010-08-26 ニチバン株式会社 Composition adhésive et ruban adhésif
WO2015056499A1 (fr) * 2013-10-15 2015-04-23 日東電工株式会社 Feuille adhésive
JP2017128651A (ja) * 2016-01-19 2017-07-27 共同印刷株式会社 剥離性感圧接着シート

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