WO2024209936A1 - 硬化性組成物、及びその硬化物 - Google Patents
硬化性組成物、及びその硬化物 Download PDFInfo
- Publication number
- WO2024209936A1 WO2024209936A1 PCT/JP2024/010921 JP2024010921W WO2024209936A1 WO 2024209936 A1 WO2024209936 A1 WO 2024209936A1 JP 2024010921 W JP2024010921 W JP 2024010921W WO 2024209936 A1 WO2024209936 A1 WO 2024209936A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- compound
- curable composition
- meth
- curing catalyst
- acrylate
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
- C08G18/20—Heterocyclic amines; Salts thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/22—Catalysts containing metal compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
Definitions
- the present invention relates to a curable composition and its cured product.
- organotin compounds have been used as catalysts to promote the reaction between hydroxyl groups and isocyanate groups, but problems have arisen, such as a shortened pot life and the effects of organotin compounds on the human body.
- This curable composition contains a resin having a hydroxyl group, a polyisocyanate compound, and a quaternary ammonium carboxylate as a curing accelerator, but in applications that require better coating properties, there is a problem in that the balance between pot life and coating properties cannot be maintained.
- the problem that the present invention aims to solve is to provide a curable composition that has a long pot life and produces a cured product that has excellent curability and solvent resistance.
- the present invention relates to a curable composition containing an acrylic polymer (A) having a hydroxyl group, a polyisocyanate compound (B), and a curing catalyst (C), wherein the curing catalyst (C) is obtained from a bismuth compound (c1) and an amidine compound (c2), the content of the curing catalyst (C) is 0.05 to 0.8% by mass relative to the copolymer (A), and the molar ratio (c1/c2) of the bismuth compound (c1) to the amidine compound (c2) is 0.025 to 0.5.
- the curable composition of the present invention has a long pot life, excellent curing properties, and produces cured products with excellent solvent resistance and hot water resistance, making it suitable for use in in-mold coating applications in which material molding and painting of various paints and plastics, etc., for automobile interiors and exteriors, automobile repairs, plastics, films, industrial machinery, building materials, wooden floors, etc. are carried out in the same mold.
- the curable composition of the present invention is a curable composition containing an acrylic polymer (A) having a hydroxyl group, a polyisocyanate compound (B), and a curing catalyst (C), the curing catalyst (C) being obtained from a bismuth compound (c1) and an amidine compound (c2), the content of the curing catalyst (C) being 0.05 to 0.8% by mass relative to the copolymer (A), and the molar ratio (c1/c2) of the bismuth compound (c1) to the amidine compound (c2) being 0.025 to 0.5.
- the hydroxyl-containing acrylic polymer (A) has two or more hydroxyl groups, and can be obtained, for example, by copolymerizing a hydroxyl-containing acrylic monomer (a1) and another monomer (a2).
- acrylic monomer (a1) having a hydroxyl group examples include 2-hydroxyethyl (meth)acrylate, 3-hydroxypropyl (meth)acrylate, 4-hydroxy-n-butyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 2-hydroxy-n-butyl (meth)acrylate, 3-hydroxy-n-butyl (meth)acrylate, 1,4-cyclohexanedimethanol mono(meth)acrylate, N-(2-hydroxyethyl) (meth)acrylamide, glycerin mono(meth)acrylate, polyethylene glycol mono(meth)acrylate, polypropylene glycol mono(meth)acrylate, 2-hydroxy-3-phenoxypropyl (meth)acrylate, 2-(meth)acryloyloxyethyl-2-hydroxyethyl phthalate, and lactone-modified (meth)acrylate having a hydroxyl group at the end.
- acrylic monomers (a1) having a hydroxyl group can be
- Examples of the other monomers (a2) include monomers having a carboxyl group, such as unsaturated monocarboxylic acids, such as (meth)acrylic acid, crotonic acid, ⁇ -carboxyethyl (meth)acrylate, ⁇ -carboxy-polycaprolactone mono(meth)acrylate, 2-(meth)acryloyloxyethyl succinate, and 2-(meth)acryloyloxyethylhexahydrophthalic acid, unsaturated dicarboxylic acids, such as maleic acid, fumaric acid, and itaconic acid, or half esters of these unsaturated dicarboxylic acids; methyl (meth)acrylate, ethyl (meth)acrylate, n-propyl (meth)acrylate, isopropyl (meth)acrylate, n-butyl (meth)acrylate, isobutyl (meth)acrylate, t-butyl (meth)acrylate
- (meth)acrylic acid refers to either or both of methacrylic acid and acrylic acid
- (meth)acrylate refers to either or both of methacrylate and acrylate
- (meth)acryloyl refers to either or both of methacryloyl and acryloyl.
- the polymer (A) can be produced by a known polymerization method using the monomer (a1) having a hydroxyl group and the other monomer (a2) as raw materials, but a solution radical polymerization method is preferred because it is the simplest.
- the solution radical polymerization method is a method in which each monomer, which is the raw material, is dissolved in a solvent and a polymerization reaction is carried out in the presence of a polymerization initiator.
- solvents that can be used in this case include hydrocarbon solvents such as toluene, xylene, cyclohexane, n-hexane, and octane; alcohol solvents such as methanol, ethanol, iso-propanol, n-butanol, iso-butanol, sec-butanol, and ethylene glycol monomethyl ether; ester solvents such as methyl acetate, ethyl acetate, n-butyl acetate, isobutyl acetate, and amyl acetate; and ketone solvents such as acetone, methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone. These solvents can be
- the polymerization initiator used in the production of the polymer (A) may be, for example, azo compounds such as 2,2'-azobis(isobutyronitrile), 2,2'-azobis(2-methylbutyronitrile), and azobiscyanovaleric acid; organic peroxides such as tert-butyl peroxypivalate, tert-butyl peroxybenzoate, tert-butylperoxy-2-ethylhexanoate, di-tert-butyl peroxide, cumene hydroperoxide, benzoyl peroxide, and tert-butyl hydroperoxide; and inorganic peroxides such as hydrogen peroxide, ammonium persulfate, potassium persulfate, and sodium persulfate.
- azo compounds such as 2,2'-azobis(isobutyronitrile), 2,2'-azobis(2-methylbutyronitrile), and azobiscyanovaleric acid
- polymerization initiators may be used alone or in combination of two or more kinds. In addition, it is preferable to use the polymerization initiator in an amount within the range of 0.1 to 15% by mass based on the total amount of the monomers that are the raw materials for the polymer (A).
- chain transfer agents such as lauryl mercaptan, octyl mercaptan, 2-mercaptoethanol, octyl thioglycolate, 3-mercaptopropionic acid, and ⁇ -methylstyrene dimer can also be used as necessary.
- the acid value of the polymer (A) is preferably 15 mgKOH/g or less, as this improves the balance between pot life and curability.
- the hydroxyl value of the polymer (A) is preferably 30 to 150 mgKOH/g, as this improves the balance between pot life and curability.
- the acid value and hydroxyl value of the acrylic polymer in this invention were measured in accordance with JIS test method K 0070-1992.
- the weight average molecular weight (Mw) of the copolymer (A) is preferably 3,000 to 30,000.
- the weight average molecular weight (Mw) is a value calculated in terms of polystyrene based on gel permeation chromatography (hereinafter abbreviated as "GPC") measurements.
- polyisocyanate compound (B) examples include aromatic diisocyanate compounds such as tolylene diisocyanate, diphenylmethane diisocyanate, m-xylylene diisocyanate, and m-phenylenebis(dimethylmethylene)diisocyanate; and aliphatic or alicyclic diisocyanate compounds such as hexamethylene diisocyanate, lysine diisocyanate, 1,3-bis(isocyanatomethyl)cyclohexane, 2-methyl-1,3-diisocyanatocyclohexane, 2-methyl-1,5-diisocyanatocyclohexane, 4,4'-dicyclohexylmethane diisocyanate, and isophorone diisocyanate.
- aromatic diisocyanate compounds such as tolylene diisocyanate, diphenylmethane diisocyanate, m-xylylene diisocyanate, and
- the polyisocyanate compound (B) may be a prepolymer having an isocyanate group obtained by subjecting the diisocyanate compound to an addition reaction with a polyhydric alcohol; a compound having an isocyanurate ring obtained by cyclizing and trimerizing the diisocyanate compound; a polyisocyanate compound having a urea bond or a biuret bond obtained by reacting the diisocyanate compound with water; a homopolymer of an acrylic monomer having an isocyanate group, such as 2-isocyanatoethyl (meth)acrylate, 3-isopropenyl- ⁇ , ⁇ -dimethylbenzyl isocyanate, or (meth)acryloyl isocyanate; or a copolymer having an isocyanate group obtained by copolymerizing the acrylic monomer having an isocyanate group with another acrylic monomer, a vinyl ester compound, a vinyl ether compound, an aromatic vinyl monomer, or a monomer such as
- the above polyisocyanate compounds (B) can be used alone or in combination of two or more kinds, but it is preferable to use a compound having three or more isocyanate groups in one molecule, as this will further improve curing properties, hardness, and solvent resistance.
- the curing catalyst (C) is obtained from a bismuth compound (c1) and an amidine compound (c2).
- the bismuth compound (c1) include fatty acid bismuth complexes such as bismuth 2-ethylhexanoate, bismuth neodecanoate, bismuth stearate, and bismuth oleate; bismuth halides, bismuth phosphate, bismuth nitrate, and bismuth sulfate.
- fatty acid bismuth complexes are preferred, fatty acid bismuth complexes having 7 to 15 carbon atoms are more preferred, and bismuth 2-ethylhexanoate is particularly preferred.
- bismuth compounds (C) can be used alone or in combination of two or more kinds.
- the amidine compound (c2) may be, for example, a pyrimidine compound such as pyrimidine, 2-aminopyrimidine, 6-amino-2,4-dimethylpyrimidine, 2-amino-4,6-dimethylpyrimidine, or 1,4,5,6-tetrahydropyrimidine; an imidazoline compound such as 2-imidazoline, 2-methyl-2-imidazoline, 2-ethyl-2-imidazoline, or 2-propyl-2-imidazoline; -diazabicyclo[5.4.0]undec-7-ene (hereinafter abbreviated as "DBU”), 1,5-diazabicyclo[4.3.0]non-5-ene (hereinafter abbreviated as "DBN”), 2,9-diazabicyclo[4.3.0]nona-1,3,5,7-tetraene, 6-(dibutylamino)-1,8-diazabicyclo[5,4,0]undecene-7,
- amidine compounds having a bicyclic structure are more preferred because they provide a better balance between pot life, solvent resistance, and curability, and DBU and DBN, which are easily available industrially, are even more preferred.
- amidine compounds (c2) can be used alone or in combination of two or more.
- the equivalent ratio (NCO/OH) of the isocyanate group (NCO) of the polyisocyanate compound (B) to the hydroxyl group (OH) of the polymer (A) is preferably 0.2 to 2, and more preferably 0.5 to 1.5, since this improves the balance between the pot life, solvent resistance, and curability.
- the content of the curing catalyst (C) in the curable composition of the present invention is 0.025 to 0.8% by mass relative to the polymer (A), but 0.1 to 0.5% by mass is more preferable because it provides a better balance between pot life, solvent resistance, and curability.
- the molar ratio (c1/c2) of the bismuth compound (c1) to the amidine compound (c2) is 0.025 to 0.1, but 0.03 to 0.2 is preferred since this improves the balance between pot life, solvent resistance, and curability.
- the curable composition of the present invention contains the polymer (A), the polyisocyanate compound (B), and the curing catalyst (C), and may also contain other ingredients such as inorganic pigments, organic pigments, extender pigments, color pigments, high-brightness pigments, cellulose derivatives, waxes, surfactants, stabilizers, flow regulators, dyes, leveling agents, rheology control agents, UV absorbers, antioxidants, plasticizers, antistatic agents, defoamers, viscosity modifiers, light resistance stabilizers, weather resistance stabilizers, heat resistance stabilizers, pigment dispersants, etc.
- other ingredients such as inorganic pigments, organic pigments, extender pigments, color pigments, high-brightness pigments, cellulose derivatives, waxes, surfactants, stabilizers, flow regulators, dyes, leveling agents, rheology control agents, UV absorbers, antioxidants, plasticizers, antistatic agents, defoamers, viscosity modifiers, light resistance
- the curable composition of the present invention has a long pot life and excellent curing properties, making it easy to obtain cured products such as cured coatings and molded articles.
- the method for obtaining a cured product can be selected according to the intended use, but examples include a method in which the curable composition is applied to a substrate and then cured at 25 to 150°C, or a method in which the curable composition is poured into a mold and then cured at 60 to 150°C.
- the method for applying the curable composition of the present invention varies depending on the article to be applied, but examples include methods using a gravure coater, roll coater, comma coater, knife coater, air knife coater, curtain coater, kiss coater, shower coater, wheeler coater, spin coater, dipping, screen printing, spraying, applicator, bar coater, brush, etc.
- the curable composition of the present invention can be diluted with an organic solvent to adjust the viscosity to a level suitable for the above coating method.
- organic solvents include aromatic hydrocarbon solvents such as toluene and xylene; alcohol solvents such as methanol, ethanol, isopropanol, t-butanol, propylene glycol monomethyl ether, propylene glycol normal propyl ether, ethylene glycol monobutyl ether, and diacetone alcohol; ester solvents such as ethyl acetate, butyl acetate, isobutyl acetate, normal propyl acetate, propylene glycol monomethyl ether acetate, and ethyl 3-ethoxypropionate; and ketone solvents such as methyl ethyl ketone, methyl isobutyl ketone, diisobutyl ketone, and cyclohexanone. These solvents can be used alone or in combination of two or
- the curable composition of the present invention can be used favorably as a paint because it can provide a cured coating film that is excellent in appearance and various coating properties to the surface of various articles.
- Examples of articles having a cured coating film formed using the curable composition of the present invention include interior and exterior materials for various vehicles such as automobiles and railway cars; interior and exterior materials for buildings such as industrial machinery, exterior walls, roofs, glass, decorative panels, and wooden floors; civil engineering materials such as soundproof walls and drainage ditches; housings for home appliances such as televisions, refrigerators, washing machines, and air conditioners; housings for electronic devices such as personal computers, smartphones, mobile phones, digital cameras, and game consoles; and housings for office equipment such as printers and facsimiles.
- the present invention will be described in more detail below with reference to specific examples.
- the acid value and hydroxyl value of the acrylic polymer were measured in accordance with JIS test method K 0070-1992, and the weight average molecular weight (Mw) was measured under the following GPC measurement conditions.
- Measurement device High-speed GPC device ("HLC-8220GPC” manufactured by Tosoh Corporation) Column: The following columns manufactured by Tosoh Corporation were used, connected in series. "TSKgel G5000” (7.8mm I.D. x 30cm) x 1 "TSKgel G4000” (7.8mm I.D. x 30cm) x 1 "TSKgel G3000” (7.8mm I.D. x 30cm) x 1 "TSKgel G2000" (7.8mm I.D.
- Preparation Example 3 Preparation of curing catalyst (C-3)
- a curing catalyst (C-3) was obtained in the same manner as in Preparation Example 1, except that the amount of DICNATE 425 used in Preparation Example 1 was changed from 1.1 g to 0.4 g.
- the molar ratio (c1/c2) was 0.033.
- Preparation Example 4 Preparation of curing catalyst (C-4)
- a curing catalyst (C-4) was obtained in the same manner as in Preparation Example 1, except that the amount of DICNATE 425 used in Preparation Example 1 was changed from 1.1 g to 1.4 g, and DBU was changed to DBN.
- the molar ratio (c1/c2) was 0.1.
- Preparation Example 5 Preparation of curing catalyst (C-5)
- a curing catalyst (C-5) was obtained in the same manner as in Preparation Example 1, except that the amount of DICNATE 425 used in Preparation Example 1 was changed from 1.1 g to 0.7 g, and DBU was changed to DBN.
- the molar ratio (c1/c2) was 0.05.
- Example 1 Preparation and evaluation of curable composition (1)
- Curable compositions (R1) to (R6) were obtained in the same manner as in Example 1, except that the composition of the curing catalyst was changed as shown in Table 2.
- the coating material obtained above was applied to a substrate (ABS and PP) using an 8 mil applicator. After that, it was left to stand for 10 minutes, dried at 80°C for 30 minutes, and further left to stand for 2 hours at 23°C to obtain a cured coating film on the substrate.
- the film thickness was 30 ⁇ m.
- a masking tape ("Masking Tape No. 243J Plus" manufactured by 3M Company) was applied to the coating surface of the test plate obtained above, and the plate was left at 23°C for 1 hour. After that, the masking tape was peeled off, and the degree of adhesive traces on the coating film was visually confirmed, and the curability was evaluated according to the following criteria.
- D Very clear adhesive marks
- Comparative Example 1 is an example in which the curing catalyst does not contain the amidine compound (c2), and it was confirmed that the pot life was insufficient.
- Comparative Example 2 is an example in which the curing catalyst does not contain the bismuth compound (c1), and it was confirmed that the curability and solvent resistance were insufficient.
- Comparative Example 3 is an example in which the molar ratio (c1/c2) of the bismuth compound (c1) to the amidine compound (c2) is greater than 0.5, which is the upper limit of the present invention, but it was confirmed that the pot life, curability, and solvent resistance were insufficient.
- Comparative Example 4 is an example in which the molar ratio (c1/c2) of the bismuth compound (c1) to the amidine compound (c2) is less than 0.025, which is the lower limit of the present invention, but it was confirmed that the pot life was insufficient.
- Comparative Example 5 is an example in which the content of the curing catalyst (C) relative to the acrylic polymer (A) having a hydroxyl group is greater than the upper limit of 0.8 mass% in the present invention, but it was confirmed that the pot life was insufficient.
- Comparative Example 6 is an example in which the content of the curing catalyst (C) relative to the acrylic polymer (A) having a hydroxyl group is less than the lower limit of 0.05 mass % according to the present invention, but it was confirmed that the curability and solvent resistance were insufficient.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
測定装置:高速GPC装置(東ソー株式会社製「HLC-8220GPC」)
カラム:東ソー株式会社製の下記のカラムを直列に接続して使用した。
「TSKgel G5000」(7.8mmI.D.×30cm)×1本
「TSKgel G4000」(7.8mmI.D.×30cm)×1本
「TSKgel G3000」(7.8mmI.D.×30cm)×1本
「TSKgel G2000」(7.8mmI.D.×30cm)×1本
検出器:RI(示差屈折計)
カラム温度:40℃
溶離液:テトラヒドロフラン(THF)
流速:1.0mL/分
注入量:100μL(試料濃度4mg/mLのテトラヒドロフラン溶液)
標準試料:下記の単分散ポリスチレンを用いて検量線を作成した。
東ソー株式会社製「TSKgel 標準ポリスチレン A-500」
東ソー株式会社製「TSKgel 標準ポリスチレン A-1000」
東ソー株式会社製「TSKgel 標準ポリスチレン A-2500」
東ソー株式会社製「TSKgel 標準ポリスチレン A-5000」
東ソー株式会社製「TSKgel 標準ポリスチレン F-1」
東ソー株式会社製「TSKgel 標準ポリスチレン F-2」
東ソー株式会社製「TSKgel 標準ポリスチレン F-4」
東ソー株式会社製「TSKgel 標準ポリスチレン F-10」
東ソー株式会社製「TSKgel 標準ポリスチレン F-20」
東ソー株式会社製「TSKgel 標準ポリスチレン F-40」
東ソー株式会社製「TSKgel 標準ポリスチレン F-80」
東ソー株式会社製「TSKgel 標準ポリスチレン F-128」
東ソー株式会社製「TSKgel 標準ポリスチレン F-288」
東ソー株式会社製「TSKgel 標準ポリスチレン F-550」
冷却菅、温度計、滴下漏斗、および攪拌機を備えたフラスコに、酢酸ブチル263.0質量部を加え、内温を125℃まで昇温した。次いで、スチレン350.0質量部、メチルメタクリレート140.0質量部、n-ブチルメタクリレート150.0質量部、2-ヒドロキシエチルメタクリレート350.0質量部、メタクリル酸10.0質量部、n-酢酸ブチル80.0質量部、及び、t-ブチルパーオキシ-2-エチルヘキサノエート100.0質量部との混合物を4時間かけて滴下した。その後、内温120℃を保持したまま、17時間重合反応をさせた。次いで、酢酸ブチルを追加で投入し、不揮発分が75質量%の水酸基を有するアクリル重合体(A-1)の溶液を得た。この重合体の重量平均分子量は4,500であった。
20mLのサンプル管にDICNATE 425(DIC(株)、2-エチルヘキサン酸ビスマス、金属含有量=25%)1.1gとDBU 2.0gを加え、撹拌子を用いて25℃で2時間撹拌し、硬化触媒(C-1)を得た。モル比(c1/c2)は0.1であった。
調製例1で使用したDICNATE 425を1.1gから0.6gに変更した以外は、調製例1と同様にして、硬化触媒(C-2)を得た。モル比(c1/c2)は0.05であった。
調製例1で使用したDICNATE 425を1.1gから0.4gに変更した以外は、調製例1と同様にして、硬化触媒(C-3)を得た。モル比(c1/c2)は0.033であった。
調製例1で使用したDICNATE 425を1.1gから1.4gに変更し、DBUをDBNに変更した以外は、調製例1と同様にして、硬化触媒(C-4)を得た。モル比(c1/c2)は0.1であった。
調製例1で使用したDICNATE 425を1.1gから0.7gに変更し、DBUをDBNに変更した以外は、調製例1と同様にして、硬化触媒(C-5)を得た。モル比(c1/c2)は0.05であった。
調製例1で使用したDICNATE 425を1.1gから11gに変更した以外は、調製例1と同様にして、硬化触媒(RC-1)を得た。モル比(c1/c2)は1であった。
調製例1で使用したDICNATE 425を1.1gから0.2gに変更した以外は、調製例1と同様にして、硬化触媒(RC-2)を得た。モル比(c1/c2)は0.02であった。
合成例1で得たアクリル重合体(A-1)の溶液30.0gとポリイソシアネート(住化コベストロウレタン社製「スミジュール N-3300」、ヘキサメチレンジイソシアヌレート型ポリイソシアネート)10.7g、硬化触媒(C-1)0.067gを配合し、硬化性樹脂組成物(1)を得た。
硬化触媒の配合を表1の通りに変更した以外は、実施例1と同様にして、硬化性組成物(2)~(5)を得た。
硬化触媒の配合を表2の通りに変更した以外は、実施例1と同様にして、硬化性組成物(R1)~(R6)を得た。
上記で得た硬化性組成物に、混合溶剤(酢酸ブチル/プロピレングリコールモノメチルエーテルアセテート/3-エトキシプロピオン酸エチル=60/30/10(質量比))を加え、NK-2岩田粘度カップ(アネスト岩田社製)にて約14秒となるように粘度を調整し、ペイントコンディショナーで1時間混合後、塗料を得た。
上記で得た塗料の配合直後の初期粘度(秒)と23℃で2時間保管した後の粘度(秒)とをNK-2 岩田粘度カップ(アネスト岩田社製)にて測定し、以下の基準により可使時間を評価した。なお、23℃における粘度を測定した。
A:2時間経過時に、流動性があり、粘度が初期粘度の2倍未満
B:2時間経過時に、流動性はあるが、粘度が初期粘度の2倍以上、3倍未満
C:2時間経過時に、流動性はあるが、粘度が初期粘度の3倍以上
D:2時間経過時に、流動性無し
上記で得た塗料を基材(ABS、及び、PP)に8milのアプリケーターを用いて塗装した。その後、10分間静置した後、80℃で30分間乾燥させ、更に、23℃で2時間静置して、基材上に硬化塗膜を得た。膜厚は30μmであった。
上記で得た試験板の塗面にマスキングテープ(3M社製「マスキングテープ NO.243J Plus」)を貼り付け、23℃で1時間放置し、その後、マスキングテ-プを剥離した後、塗膜上の粘着剤跡の程度を目視により確認し、硬化性を以下の基準により評価した。
A:粘着剤跡なし
B:うっすらと粘着剤跡が認められる
C:はっきりと粘着剤跡が認められる
D:非常にはっきりと粘着剤跡が認められる
上記で得た硬化塗膜に2mLのポリスポイトでキシレンを1滴滴下し、23℃で1分間放置し、その後、柔らかい布でキシレンを拭き取り、塗膜外観を目視により、以下の基準で評価した。
A:痕残りなし
B:塗膜の一部に痕残りあり
C:塗膜全体に痕残りあり
D:塗膜溶解、基材露出
Claims (5)
- 水酸基を有するアクリル重合体(A)と、ポリイソシアネート化合物(B)と、硬化触媒(C)とを含有する硬化性組成物であって、前記硬化触媒(C)がビスマス化合物(c1)及びアミジン化合物(c2)から得られるものであり、前記硬化触媒(C)の含有量が、前記共重合体(A)に対して、0.05~0.8質量%であり、前記ビスマス化合物(c1)と前記アミジン化合物(c2)とのモル比(c1/c2)が、0.025~0.5であることを特徴とする硬化性組成物。
- 前記ビスマス化合物(c1)が、脂肪酸ビスマス錯体である請求項1記載の硬化性組成物。
- 前記アミジン化合物(c2)が、二環式のアミジン化合物である請求項1記載の硬化性組成物。
- 前記ポリイソシアネート化合物(B)が、一分子中に3以上のイソシアネ-ト基を有する化合物を含むものである請求項1記載の硬化性組成物。
- 請求項1~4のいずれか1項に記載の硬化性組成物の硬化物。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202480016892.6A CN120752277A (zh) | 2023-04-04 | 2024-03-21 | 固化性组合物及其固化物 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2023060675 | 2023-04-04 | ||
| JP2023-060675 | 2023-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024209936A1 true WO2024209936A1 (ja) | 2024-10-10 |
Family
ID=92971974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2024/010921 Pending WO2024209936A1 (ja) | 2023-04-04 | 2024-03-21 | 硬化性組成物、及びその硬化物 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN120752277A (ja) |
| WO (1) | WO2024209936A1 (ja) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013047208A1 (ja) * | 2011-09-30 | 2013-04-04 | 関西ペイント株式会社 | 塗料組成物及び塗装物品 |
| WO2013047209A1 (ja) * | 2011-09-30 | 2013-04-04 | 関西ペイント株式会社 | 塗膜形成方法及び塗装物品 |
| WO2014045657A1 (ja) * | 2012-09-20 | 2014-03-27 | 関西ペイント株式会社 | 複層塗膜形成方法 |
| JP2015078349A (ja) * | 2013-09-13 | 2015-04-23 | 三洋化成工業株式会社 | 低反発性ポリウレタン樹脂 |
| CN107189028A (zh) * | 2017-06-23 | 2017-09-22 | 黎明化工研究设计院有限责任公司 | 一种环保高性能快速脱模聚氨酯反应注射成型组合物及其自催化扩链剂的制备方法 |
-
2024
- 2024-03-21 WO PCT/JP2024/010921 patent/WO2024209936A1/ja active Pending
- 2024-03-21 CN CN202480016892.6A patent/CN120752277A/zh active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013047208A1 (ja) * | 2011-09-30 | 2013-04-04 | 関西ペイント株式会社 | 塗料組成物及び塗装物品 |
| WO2013047209A1 (ja) * | 2011-09-30 | 2013-04-04 | 関西ペイント株式会社 | 塗膜形成方法及び塗装物品 |
| WO2014045657A1 (ja) * | 2012-09-20 | 2014-03-27 | 関西ペイント株式会社 | 複層塗膜形成方法 |
| JP2015078349A (ja) * | 2013-09-13 | 2015-04-23 | 三洋化成工業株式会社 | 低反発性ポリウレタン樹脂 |
| CN107189028A (zh) * | 2017-06-23 | 2017-09-22 | 黎明化工研究设计院有限责任公司 | 一种环保高性能快速脱模聚氨酯反应注射成型组合物及其自催化扩链剂的制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN120752277A (zh) | 2025-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102198521B1 (ko) | 폴리카르보네이트 변성 아크릴 수지, 도료 및 해당 도료로 도장된 플라스틱 성형품 | |
| US6162886A (en) | Copolymers which contain hydroxyl groups and a method of producing them | |
| JP2011525554A (ja) | 部分的にシラン化されたポリイソシアネート系化合物のコーティング組成物における架橋剤としての使用、及びこの化合物を含むコーティング組成物 | |
| CN107207695B (zh) | 基于低酸值多元醇的涂覆剂体系 | |
| US5514755A (en) | Coating compositions comprising isobornyl methacrylate and 4-hydroxybutyl acrylate | |
| CA2576863C (en) | Aqueous coating compositions based on acrylate copolymers | |
| CN107207698A (zh) | 基于Li/Bi催化剂的涂覆剂体系 | |
| CA2459635C (en) | Two-component coating compositions | |
| US5691417A (en) | Coating medium, the use thereof, and a process for multilayer coating | |
| EP1211267B1 (en) | Coating compositions based on hydroxy-functional (meth)acrylic copolymers | |
| WO2024209936A1 (ja) | 硬化性組成物、及びその硬化物 | |
| KR102490701B1 (ko) | 폴리카보네이트 변성 아크릴 수지, 도료 및 당해 도료로 도장된 플라스틱 성형품 | |
| US6297311B1 (en) | Aqueous coating composition | |
| JP4184689B2 (ja) | 塗料組成物 | |
| JPWO2012169395A1 (ja) | 水性樹脂組成物、水性塗料及びプラスチック成型品 | |
| WO2024209935A1 (ja) | 硬化性組成物、及びその硬化物 | |
| JP7582568B1 (ja) | 硬化性樹脂組成物、塗料及び物品 | |
| KR102895615B1 (ko) | 플라스틱용 베이스 코트 조성물 | |
| WO2021124899A1 (ja) | ポリカーボネート変性アクリル樹脂、塗料及び該塗料で塗装されたプラスチック成形品 | |
| JP7782378B2 (ja) | 塗料組成物、及び該塗料組成物で塗装された物品 | |
| JP7786649B2 (ja) | 水分散体、水性塗料、及び、該水性塗料の塗膜を有するプラスチック成形品 | |
| JP7298150B2 (ja) | ポリカーボネート変性アクリル樹脂、塗料及び該塗料で塗装されたプラスチック成形品 | |
| JP6897894B1 (ja) | ポリカーボネート変性アクリル樹脂、塗料及び該塗料で塗装されたプラスチック成形品 | |
| US20080177006A1 (en) | Paint Composition, a Painting and Finishing Method, and Painted Articles | |
| JP7364126B1 (ja) | アクリル樹脂水分散体、その製造方法及び水性塗料 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 24784727 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2025512481 Country of ref document: JP Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2025512481 Country of ref document: JP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202480016892.6 Country of ref document: CN |
|
| WWP | Wipo information: published in national office |
Ref document number: 202480016892.6 Country of ref document: CN |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2024784727 Country of ref document: EP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2024784727 Country of ref document: EP Effective date: 20251104 |
|
| ENP | Entry into the national phase |
Ref document number: 2024784727 Country of ref document: EP Effective date: 20251104 |
|
| ENP | Entry into the national phase |
Ref document number: 2024784727 Country of ref document: EP Effective date: 20251104 |
|
| ENP | Entry into the national phase |
Ref document number: 2024784727 Country of ref document: EP Effective date: 20251104 |
|
| ENP | Entry into the national phase |
Ref document number: 2024784727 Country of ref document: EP Effective date: 20251104 |