WO2014156423A1 - ウレタン樹脂組成物、コーティング剤及び物品 - Google Patents
ウレタン樹脂組成物、コーティング剤及び物品 Download PDFInfo
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- WO2014156423A1 WO2014156423A1 PCT/JP2014/054440 JP2014054440W WO2014156423A1 WO 2014156423 A1 WO2014156423 A1 WO 2014156423A1 JP 2014054440 W JP2014054440 W JP 2014054440W WO 2014156423 A1 WO2014156423 A1 WO 2014156423A1
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- 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
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/671—Unsaturated compounds having only one group containing active hydrogen
- C08G18/672—Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
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- 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
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/06—Polyurethanes from polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F299/00—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
- C08F299/02—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates
- C08F299/06—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates from polyurethanes
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- 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
- C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
- C08G18/0819—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups
- C08G18/0823—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing carboxylate salt groups or groups forming them
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- 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
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
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- 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
- C08G18/67—Unsaturated compounds having active hydrogen
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- 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
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/671—Unsaturated compounds having only one group containing active hydrogen
- C08G18/672—Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
- C08G18/673—Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen containing two or more acrylate or alkylacrylate ester groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/06—Polyurethanes from polyesters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
- C09D175/16—Polyurethanes having carbon-to-carbon unsaturated bonds having terminal carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/02—Emulsion paints including aerosols
Definitions
- the present invention relates to a urethane resin composition that can be used for various applications such as a coating agent and an adhesive.
- Urethane resin compositions are generally used in various applications including coating agents and adhesives because they have good adhesion to substrates and can form flexible coatings.
- urethane resin composition examples include an aqueous polyurethane dispersion, a) at least one organic aliphatic, alicyclic or aromatic di, tri- or polyisocyanate, b) at least one isocyanate-reactive polycarbonate.
- a diol, triol or polyol c) at least one compound comprising at least one isocyanate-reactive group and at least one free-radically polymerizable unsaturated group, and d) at least one isocyanate-reactive group and at least one At least one compound comprising one dispersing active group, and optionally e) at least one compound comprising at least two isocyanate-reactive groups and having a molecular weight of less than 1000 g / mol, preferably less than 500 g / mol.
- Reaction mixture containing And aqueous polyurethane dispersions the resulting reaction product, characterized by being obtained by dispersing in water are known (e.g., see Patent Document 1.).
- the use of the urethane resin composition for the surface coating of an optical member such as a flexible display has been studied, and the coating film formed using the aqueous polyurethane dispersion has elongation and flexibility. Since the flexibility is not sufficient, whitening or the like may occur when the coated object is bent. Moreover, since the coating film formed using the said aqueous polyurethane dispersion is not sufficient in terms of hardness, it may be easily damaged when used for a surface coating agent such as a touch panel, and may cause poor appearance.
- the problem to be solved by the present invention is to provide a urethane resin composition capable of forming a coating film having both elongation and flexibility and high hardness.
- the present inventors use an alkylene diol (a1-1) having 1 to 5 carbon atoms having a specific two or more polymerizable unsaturated groups as a polyol used for producing a urethane resin. It has been found that the above-mentioned problems can be solved.
- the present invention relates to an alkylene diol (a1-1) having two or more polymerizable unsaturated groups represented by the following general formula (1) or two or more polymerizable groups represented by the following general formula (2).
- R 1 in the general formula (1) represents a structure having two or more atomic groups containing a polymerizable unsaturated group in the side chain among linear alkylene groups having 1 to 9 carbon atoms. .
- R 1 and R 3 in the general formula (2) represent a structure having a total of 2 or more atomic groups containing a polymerizable unsaturated group in the side chain of the ethylene group.
- R 2 represents 1 to 5 carbon atoms.
- the urethane resin composition of the present invention can form a coating film having both excellent elongation and flexibility and high hardness, for example, acrylonitrile-butadiene-styrene resin (ABS resin), polycarbonate resin (PC resin), It can be suitably used as a coating agent and adhesive for plastic substrates such as ABS / PC resin, polystyrene resin (PS resin), polymethacrylic acid resin (PMMA resin), and polyester resin (PET resin).
- ABS resin acrylonitrile-butadiene-styrene resin
- PC resin polycarbonate resin
- PET resin polyester resin
- the urethane resin composition of the present invention comprises an alkylene diol (a1-1) having two or more polymerizable unsaturated groups represented by the following general formula (1) or two or more represented by the following general formula (2).
- a urethane resin (A) having a polymerizable unsaturated group obtained by reacting a polyol (a1) containing an oxyalkylene diol (a1-2) having a polymerizable unsaturated group with a polyisocyanate (a2), and And an aqueous medium (B).
- R 1 in the general formula (1) represents a structure having two or more atomic groups containing a polymerizable unsaturated group in the side chain of a linear alkylene group having 1 to 9 carbon atoms.
- R 1 and R 3 in the general formula (2) represent a structure having a total of 2 or more atomic groups containing a polymerizable unsaturated group in the side chain of the ethylene group.
- R 2 represents 1 to 5 carbon atoms. Represents an alkylene group having 1 group.
- polyol (a1) used for the production of the urethane resin (A) two or more polymerizable unsaturated groups are present in the side chain with respect to the main chain of the urethane resin (A) in which urethane bonds are mainly present.
- the polymerizable unsaturated group derived from the alkylene diol (a1-1) and the oxyalkylene diol (a1-2) undergoes radical polymerization when forming a coating film or the like. Thereby, the coating film which made the outstanding elongation and flexibility, and high hardness compatible can be formed.
- R 1 in the general formula (1) represents a structure having two or more atomic groups containing a polymerizable unsaturated group in the side chain of a linear alkylene group having 1 to 9 carbon atoms.
- pentaerythritol di (meth) acrylate has a structure in which R 1 in the general formula (1) has two atomic groups containing a polymerizable unsaturated group in the side chain of a propylene group having 3 carbon atoms.
- alkylene diol (a1-1) those having 2 or more and 5 or less polymerizable unsaturated groups are preferably used, and those having 2 or more and 3 or less polymerizable unsaturated groups are used. It is more preferable to obtain a urethane resin composition capable of forming a coating film having both excellent elongation and flexibility and high hardness.
- alkylene diol (a1-1) examples include pentaerythritol di (meth) acrylate [dimethylolpropane di (meth) acrylate], dimethylolmethane di (meth) acrylate (R in the general formula (1)).
- R 1 in the general formula (1) is an atom group having 3 carbon atoms and 2 atomic groups having a polymerizable unsaturated group), diethylolmethane di (meth) acrylate, and diethylolpropane di (meth) acrylate
- R 1 in the general formula (1) is , 5 carbon atoms, 2 atomic groups having a polymerizable unsaturated group
- R 1 in the general formula (1) is carbon 7 atoms, 2 atomic groups with polymerizable unsaturated groups
- dibutanol methane di (meth) acrylate, dibutanol propane di (meth) a Relate (general formula (1) R 1 in the number 9 carbon atoms, polymerizable atomic two having an unsaturated group) can be used, pentaerythritol di (meth) acrylate, dimethyl
- R 1 and R 3 in the general formula (2) have a structure having an atomic group containing a polymerizable unsaturated group in the side chain of the ethylene group.
- the structure having 2 or more in total having an atomic group containing a polymerizable unsaturated group in the side chain of the ethylene group preferably in the range of 2 or more and 5 or less, More preferably, it is in the range of 2 or more and 3 or less.
- R 2 in the general formula (2) represents an alkylene group having 1 to 5 carbon atoms, and examples thereof include a methylene group, an ethylene group, a propylene group, a butylene group, and a pentyl group.
- oxyalkylene diol (a1-2) include bis (3-acryloyloxy-2-hydroxyproxy) methane (R 1 in the general formula (2) has 2 carbon atoms, and R 2 represents a carbon atom.
- R 3 is 2 carbon atoms, 2 atomic groups having a polymerizable unsaturated group
- 1,2-bis (3-acryloyloxy-2-hydroxyproxy) ethane in the general formula (2)
- R 1 has 2 carbon atoms
- R 2 has 2 carbon atoms
- R 3 has 2 carbon atoms and 2 atomic groups having a polymerizable unsaturated group
- 1,3-bis (3-acryloyloxy- 2-hydroxyproxy) propane R 1 in the general formula (2) is 2 carbon atoms, R 2 is 3 carbon atoms, R 3 is 2 carbon atoms, an atomic group having a polymerizable unsaturated group 2) 1,4-bis (3-acryloyloxy-2-hydroxyl) Carboxymethyl) butane (formula (2) R 1 is
- the alkylene diol (a1-1) and the oxyalkylene diol (a1-2) are in a total range of 0.1% by mass to 49% by mass with respect to the total amount of raw materials used in the production of the urethane resin (A). Is preferably used in order to obtain a urethane resin composition capable of forming a coating film having both excellent elongation and flexibility and high hardness, and is in the range of 1 to 15% by mass. More preferred.
- the total amount of the raw material used for manufacture of the said urethane resin (A) points out the total mass containing it, when a polyol (a1), polyisocyanate (a2), and a chain extender are used.
- polyol (a1) that can be used in the production of the urethane resin (A), in addition to the alkylene diol (a1-1) and the oxyalkylene diol (a1-2), other polyols may be used in combination as necessary. be able to.
- a polyol having a hydrophilic group can be used for the purpose of imparting excellent water dispersion stability to the urethane resin (A).
- polyol having a hydrophilic group for example, a polyol having an anionic group, a polyol having a cationic group, or a polyol having a nonionic group can be used. Among these, it is preferable to use a polyol having an anionic group.
- polyol having an anionic group for example, a polyol having a carboxyl group or a polyol having a sulfonic acid group can be used.
- polyol having a carboxyl group for example, 2,2-dimethylolpropionic acid, 2,2-dimethylolbutanoic acid, 2,2-dimethylolvaleric acid and the like can be used. Preference is given to using methylolpropionic acid.
- polyester polyol which has a carboxyl group obtained by making the polyol which has the said carboxyl group, and various polycarboxylic acids react can also be used.
- polyol having a sulfonic acid group examples include dicarboxylic acids and salts thereof such as 5-sulfoisophthalic acid, sulfoterephthalic acid, 4-sulfophthalic acid, and 5 [4-sulfophenoxy] isophthalic acid; the dicarboxylic acid and ethylene
- a polyester polyol obtained by reacting with a low molecular polyol such as glycol, propylene glycol, 1,4-butanediol, 1,6-hexanediol, diethylene glycol, neopentyl glycol, and the like, and the polyester polyol, ⁇ -butyrolactone, ⁇ Polyester polyols obtained by reacting with cyclic ester compounds such as valerolactone and ⁇ -caprolactone can be used.
- the anionic group is preferably partially or completely neutralized with a basic compound or the like in order to develop good water dispersibility.
- Examples of basic compounds that can be used for neutralizing the anionic group include organic amines having a boiling point of 200 ° C. or higher, such as ammonia, triethylamine, morpholine, monoethanolamine, diethylethanolamine; sodium hydroxide, hydroxide A metal hydroxide containing potassium, lithium hydroxide or the like can be used.
- polyol having a cationic group for example, a polyol having a tertiary amino group can be used. Specifically, N-methyl-diethanolamine, a compound having two epoxies and a secondary amine are reacted. The polyol etc. which are made to obtain can be used.
- the cationic group is preferably partially or completely neutralized with an acidic compound such as formic acid, acetic acid, propionic acid, succinic acid, glutaric acid, tartaric acid, adipic acid, phosphoric acid or the like.
- an acidic compound such as formic acid, acetic acid, propionic acid, succinic acid, glutaric acid, tartaric acid, adipic acid, phosphoric acid or the like.
- the tertiary amino group as the cationic group is preferably partly or entirely quaternized.
- the quaternizing agent for example, dimethyl sulfate, diethyl sulfate, methyl chloride, ethyl chloride and the like can be used, and dimethyl sulfate is preferably used.
- polyol having a nonionic group polyalkylene glycol having a structural unit derived from ethylene oxide can be used.
- the polyol having a hydrophilic group is preferably used in the range of 1% by mass to 20% by mass with respect to the total amount of raw materials used for the production of the urethane resin (A). It is preferable to use in the range.
- polyester polyol for example, polyester polyol, polycarbonate polyol, polyether polyol, etc. are used for forming a coating film having both excellent elongation and flexibility and high hardness. It is preferable to use polyester polyol or polycarbonate polyol.
- polyester polyol examples include a polyester polyol obtained by reacting a low molecular weight polyol and a polycarboxylic acid; a polyester polyol obtained by a ring-opening polymerization reaction of a cyclic ester compound such as ⁇ -caprolactone; and a copolymer thereof.
- the polyester polyol obtained by doing this can be used.
- low molecular weight polyol examples include ethylene glycol, propylene glycol, 1,4-butanediol, 1,6-hexanediol, diethylene glycol, neopentyl glycol, and 1,3-butanediol having a molecular weight of about 50 to 300.
- Certain aliphatic polyols; polyols having an aliphatic cyclic structure such as cyclohexanedimethanol; polyols having an aromatic structure such as bisphenol A and bisphenol F can be used. Of these, 1,6-hexanediol and neopentyl glycol are preferably used.
- polycarboxylic acid examples include aliphatic polycarboxylic acids such as succinic acid, adipic acid, sebacic acid, and dodecanedicarboxylic acid; terephthalic acid, isophthalic acid, phthalic acid, naphthalenedicarboxylic acid, and the like.
- Aromatic polycarboxylic acids of the above; anhydrides or esterified products thereof can be used.
- polycarbonate polyol examples include diols such as 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, cyclohexanedimethanol, carbonate esters such as dimethyl carbonate and diethyl carbonate, phosgene and the like. What was obtained by reacting can be used.
- polyester polyol, polyether polyol and polycarbonate polyol are preferably used in the range of 1% by mass to 70% by mass with respect to the total amount of raw materials used in the production of the urethane resin (A), preferably 15% by mass to The use in the range of 45% by mass is more preferable for forming a coating film that achieves both excellent elongation and flexibility and high hardness.
- polyisocyanate (a2) used in the production of the urethane resin (A) examples include polyisocyanates having an aliphatic cyclic structure such as cyclohexane diisocyanate, dicyclohexylmethane diisocyanate, and isophorone diisocyanate; 4,4′-diphenylmethane diisocyanate.
- 2,4'-diphenylmethane diisocyanate carbodiimide modified diphenylmethane diisocyanate, crude diphenylmethane diisocyanate, phenylene diisocyanate, tolylene diisocyanate, naphthalene diisocyanate, etc .; hexamethylene diisocyanate, lysine diisocyanate, xylylene diisocyanate, tetramethylxylylene diisocyanate Aliphatic polyisocyanate etc. It is possible to use a titanate.
- dicyclohexylmethane diisocyanate or isophorone diisocyanate as the polyisocyanate (a2) in order to form a coating film having both excellent elongation and flexibility and high hardness.
- the urethane resin (A) As a method for producing the urethane resin (A) by reacting the polyol (a1) and the polyisocyanate (a2), for example, in the absence of a solvent or in the presence of an organic solvent, the polyol (a1) and the polyisocyanate (A) are produced. and a2) are mixed and reacted at a reaction temperature in the range of about 50 ° C to 150 ° C.
- the reaction between the polyol (a1) and the polyisocyanate (a2) is performed, for example, when the equivalent ratio of the isocyanate group of the polyisocyanate (a2) to the hydroxyl group of the polyol (a1) is in the range of 0.8 to 2.5. Preferably, it is carried out, more preferably in the range of 0.9 to 1.5.
- the polyol (a1) and the polyisocyanate (the polyisocyanate (A1) and the polyisocyanate (A1)) are formed in order to form a coating film having both excellent elongation and flexibility and high hardness.
- a chain extender can be used as necessary.
- chain extender that can be used when producing the urethane resin (A)
- polyamine, hydrazine compounds, other active hydrogen atom-containing compounds, and the like can be used.
- polyamine examples include ethylenediamine, 1,2-propanediamine, 1,6-hexamethylenediamine, piperazine, 2,5-dimethylpiperazine, isophoronediamine, 4,4'-dicyclohexylmethanediamine, 3,3'- Diamines such as dimethyl-4,4′-dicyclohexylmethanediamine, 1,4-cyclohexanediamine; N-hydroxymethylaminoethylamine, N-hydroxyethylaminoethylamine, N-hydroxypropylaminopropylamine, N-ethylaminoethylamine, N -Methylaminopropylamine; diethylenetriamine, dipropylenetriamine, triethylenetetramine and the like can be used.
- hydrazine compound examples include hydrazine, N, N′-dimethylhydrazine, 1,6-hexamethylenebishydrazine; succinic acid dihydrazide, adipic acid dihydrazide, glutaric acid dihydrazide, sebacic acid dihydrazide, isophthalic acid dihydrazide; ⁇ -semicarbazide propion Acid hydrazide or the like can be used.
- Examples of the other active hydrogen-containing compounds include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, 1,3-propanediol, 1,3-butanediol, 1,4-butanediol, hexamethylene glycol, saccharose, Glycols such as methylene glycol, glycerin and sorbitol; bisphenol A, 4,4′-dihydroxydiphenyl, 4,4′-dihydroxydiphenyl ether, 4,4′-dihydroxydiphenyl sulfone, hydrogenated bisphenol A, phenol such as hydroquinone, and water Etc. can be used alone or in combination of two or more within a range in which the storage stability of the urethane resin composition of the present invention does not decrease.
- Examples of the organic solvent that can be used in producing the urethane resin (A) include ketones such as acetone and methyl ethyl ketone; ethers such as tetrahydrofuran and dioxane; acetate esters such as ethyl acetate and butyl acetate; nitriles such as acetonitrile; Amides such as formamide and N-methylpyrrolidone can be used alone or in combination of two or more.
- ketones such as acetone and methyl ethyl ketone
- ethers such as tetrahydrofuran and dioxane
- acetate esters such as ethyl acetate and butyl acetate
- nitriles such as acetonitrile
- Amides such as formamide and N-methylpyrrolidone can be used alone or in combination of two or more.
- the urethane resin (A) obtained by the above method has a weight average molecular weight in the range of 10,000 to 500,000 in order to form a coating film having both excellent elongation and flexibility and high hardness. It is preferred to use those having a weight average molecular weight in the range of 20,000 to 200,000, more preferred to use a weight average molecular weight in the range of 40,000 to 100,000. More preferably.
- urethane resin (A) it is preferable to use a resin having a urea bond in order to form a coating film having both excellent elongation and flexibility and high hardness.
- urethane resin (A) a resin having a urea bond equivalent in the range of 500 to 50,000 can be used to form a coating film that achieves both excellent elongation and flexibility and high hardness. This is preferable.
- the urethane resin (A) has a hydrophilic group.
- a method may be mentioned in which a part or all of the hydrophilic group is neutralized and then the neutralized product and the aqueous medium (B) are mixed.
- Examples of the aqueous medium (B) include water, organic solvents miscible with water, and mixtures thereof.
- the organic solvent miscible with water include alcohols such as methanol, ethanol, n-propanol and isopropanol; ketones such as acetone and methyl ethyl ketone; polyalkylene glycols such as ethylene glycol, diethylene glycol and propylene glycol; alkyl ethers of polyalkylene glycols And lactams such as N-methyl-2-pyrrolidone.
- only water may be used, a mixture of water and an organic solvent miscible with water may be used, or only an organic solvent miscible with water may be used. From the viewpoint of safety and load on the environment, water alone or a mixture of water and an organic solvent miscible with water is preferable, and only water is particularly preferable.
- the urethane resin composition of the present invention obtained by the above method contains the urethane resin (A) in the range of 5% by mass to 85% by mass with respect to the total amount of the urethane resin composition. Preferably, it is contained in the range of 15% by mass to 50% by mass.
- the urethane resin composition of the present invention obtained by the above method uses a composition containing the aqueous medium (B) in the range of 10% by mass to 90% by mass with respect to the total amount of the urethane resin composition. The content is preferably in the range of 45% by mass to 80% by mass.
- a polymerization initiator in order to advance radical polymerization of the polymerizable unsaturated group of the urethane resin (A).
- the polymerization initiator for example, benzophenone, benzyl, Michler ketone, thioxanthone, anthraquinone, benzoin, dialkoxyacetophenone, acyloxime ester, benzyl ketal, hydroxyalkylphenone, halogenoketone and the like can be used.
- the photopolymerization initiator may be used in combination with a tertiary amine such as methylamine, diethanolamine, N-methyldiethanolamine, or tributylamine as necessary.
- polymerization initiator examples include 2,2′-azobis (2-methylpropionamidine) dihydrochloride, 4,4′-azobis (4-cyano) valeric acid, 2,2′-azobis (2-amidino).
- Thermal polymerization initiators such as propane) dihydrochloride, benzoyl peroxide, t-butyl hydroperoxide, peroxides such as hydrogen peroxide can also be used.
- the polymerization initiator is preferably used in the range of 0.5% by mass to 5% by mass with respect to the solid content of the urethane resin (A).
- the urethane resin composition may contain an additive as necessary.
- the additive include a compound having a polymerizable unsaturated group, a film forming aid, a filler, a thixotropy imparting agent, and an adhesive property.
- An imparting agent, a pigment, an antibacterial agent, or the like can be used as long as the object of the present invention is not impaired.
- Dipentaerythritol hexa (meth) acrylate or the like can be used as the compound having a polymerizable unsaturated group. By using these, a urethane resin composition capable of forming a coating film with higher hardness can be obtained.
- the film forming aid examples include an anionic surfactant (dioctyl sulfosuccinate soda salt, etc.), a hydrophobic nonionic surfactant (sorbitan monooleate, etc.), silicone oil, and the like.
- thixotropy-imparting agent examples include fatty acid, fatty acid metal salt, fatty acid ester, paraffin, resin acid, surfactant, polyacrylic acid, etc., the filler, polyvinyl chloride powder, hydrogenated castor oil, Examples thereof include powdered silica, organic bentonite, and sepiolite.
- pigment known and commonly used inorganic pigments and organic pigments can be used.
- the inorganic pigment for example, titanium oxide, antimony red, bengara, cadmium red, cadmium yellow, cobalt blue, bitumen, ultramarine, carbon black, graphite and the like can be used.
- organic pigment examples include quinacridone pigment, quinacridone quinone pigment, dioxazine pigment, phthalocyanine pigment, anthrapyrimidine pigment, ansanthrone pigment, indanthrone pigment, flavanthrone pigment, perylene pigment, diketopyrrolopyrrole pigment, perinone pigment, Organic pigments such as quinophthalone pigments, anthraquinone pigments, thioindigo pigments, benzimidazolone pigments, and azo pigments can be used. Two or more kinds of these pigments can be used in combination. These pigments may be surface-treated and have a self-dispersing ability with respect to an aqueous medium.
- antibacterial agent for example, silver chloride, trifluanide, dichlorofluanide, fluorophorpet, zinc pyrithione, methyl 2-benzimidazole carbanate, 2- (4-thiazolyl) benzimidazole and the like can be used.
- reaction accelerators metal reaction accelerators, metal salt reaction accelerators, amine reaction accelerators, etc.
- stabilizers ultraviolet absorbers, antioxidants, heat stabilizers, etc.
- various additives such as moisture removing agents (4-paratoluenesulfonyl isocyanate, etc.), adsorbents (quick lime, slaked lime, zeolite, molecular sieves, etc.), adhesion-imparting agents, antifoaming agents, leveling agents and the like.
- the urethane resin composition of the present invention can be suitably used, for example, as a coating agent capable of imparting surface protection and design properties to various substrates.
- Examples of the substrate on which the coating agent can be applied to form a coating film include a glass substrate, a metal substrate, a plastic substrate, paper, a wood substrate, and a fibrous substrate.
- the base material of porous body structures such as a urethane foam, can also be used.
- plastic base materials include polycarbonate base materials, polyester base materials, acrylonitrile-butadiene-styrene base materials, polyacryl base materials, polystyrene base materials, polyurethane base materials, epoxy resin base materials, polyvinyl chloride base materials, and polyamide base materials. Can be used.
- a plated steel plate such as a galvanized steel plate or an aluminum-zinc alloy steel plate, an iron plate, an aluminum plate, an aluminum alloy plate, an electromagnetic steel plate, a copper plate, a stainless steel plate or the like can be used.
- the base material may be a planar material made of the material or may have a curved portion, or may be a base material made of fibers such as a nonwoven fabric.
- the coating agent of the present invention is, for example, applied directly to the surface of the base material or the surface of the base material on which a primer layer or the like is previously provided, and then dried, and then the polymerization of the urethane resin (A)
- a coating film can be formed by advancing radical polymerization of a polymerizable unsaturated double group.
- a coating film is formed on the surface of the release paper by applying the coating agent on the release paper, then drying and curing, and a non-woven fabric obtained by applying an adhesive or an adhesive on the coating film.
- a film formed using the coating agent can be laminated on the surface of a desired substrate by laminating the substrate made of such fibers and peeling the release paper.
- Examples of the method for applying the coating agent on the substrate include a spray method, a curtain coater method, a flow coater method, a roll coater method, a brush coating method, and a dipping method.
- examples of the method for curing the coating agent include a heating method and a method of irradiating active energy rays such as ultraviolet rays.
- the heating method varies depending on the type of radical polymerization initiator to be used. For example, by performing the heating at a temperature of about 100 ° C. to 150 ° C. for about 10 minutes to 30 minutes, the radical polymerization can be advanced and cured. .
- Examples of the method of irradiating the active energy ray include a method using a known lamp such as a xenon lamp, a xenon-mercury lamp, a metal halide lamp, a high-pressure mercury lamp, a low-pressure mercury lamp, and an LED lamp. It is done.
- a known lamp such as a xenon lamp, a xenon-mercury lamp, a metal halide lamp, a high-pressure mercury lamp, a low-pressure mercury lamp, and an LED lamp. It is done.
- the exposure dose of the actinic energy ray is preferably in the range of 50mJ / cm 2 ⁇ 5,000mJ / cm 2, more preferably in the range of 100mJ / cm 2 ⁇ 3,000mJ / cm 2, 100mJ / A range of cm 2 to 1000 mJ / cm 2 is particularly preferable.
- the above-mentioned ultraviolet irradiation amount is based on a value measured in a wavelength range of 300 to 390 nm using a UV checker UVR-N1 (manufactured by Nippon Battery Co., Ltd.).
- the thickness of the coating film that can be formed using the coating agent of the present invention can be appropriately adjusted according to the use of the substrate, but is usually preferably about 0.1 ⁇ m to 100 ⁇ m.
- articles provided with a coating film formed using the coating agent on the substrate are optical members such as liquid crystal displays and flexible displays, mobile phones, various plastic products including home appliances, It can be used as metal products such as automobile exteriors and building materials.
- Example 1 A 2 liter four-necked flask equipped with a heating device, a stirrer, a thermometer and a reflux condenser was charged with 89.9 parts by mass of methyl ethyl ketone, polycarbonate polyol (1,6-hexanediol, 1,5-pentanediol and diethyl carbonate).
- Polycarbonate polyol obtained by reaction 90 parts by weight of number average molecular weight 2000), 12.2 parts by weight of 2,2-dimethylolpropionic acid, 11.8 parts by weight of 1,6-hexanediol, pentaerythritol diacrylate (general formula R 1 in (1) is 3 carbon atoms and 2 atomic groups having a polymerizable unsaturated group) 20.1 parts by mass, 0.004 parts by mass of methylhydroquinone, and 2,6-tert-butyl -0.04 part by mass of p-cresol was charged and adjusted to 50 ° C while stirring.
- Example 2 Into a 2 liter four-necked flask equipped with a heating device, a stirrer, a thermometer and a reflux condenser, 49.9 parts by mass of methyl ethyl ketone, polycarbonate polyol (1,6-hexanediol, 1,5-pentanediol and diethyl carbonate were added.
- a urethane resin composition having a non-volatile content of 33% by mass is prepared by supplying 16 parts by mass of a 10% by mass piperazine aqueous solution as a chain extender to the four-necked flask and reacting them. (II) was obtained.
- Example 3 Polyester obtained by reacting 89.1 parts by weight of methyl ethyl ketone, 1,6-hexanediol, neopentyl glycol and adipic acid in a 2-liter four-necked flask equipped with a heating device, stirrer, thermometer and reflux condenser 90 parts by weight of polyol (number average molecular weight 2,000), 12 parts by weight of 2,2-dimethylolpropionic acid, 11.7 parts by weight of 1,6-hexanediol, pentaerythritol diacrylate (R in the general formula (1) 1 is 39.8 carbon atoms, 2 atomic groups having a polymerizable unsaturated group), 19.8 parts by mass, 0.004 parts by mass of methylhydroquinone, and 2,6-tert-butyl-p-cresol. 04 parts by weight were charged and adjusted to 50 ° C. with stirring.
- polyol number average molecular weight 2,000
- Example 4 A 2 liter four-necked flask equipped with a heating device, a stirrer, a thermometer, and a reflux condenser was charged with 58.6 parts by mass of methyl ethyl ketone, polycarbonate polyol (1,6-hexanediol, 1,5-pentanediol and diethyl carbonate).
- Example 5 In a 2-liter four-necked flask equipped with a heating device, a stirrer, a thermometer, and a reflux condenser, 1,4-bis (3-acryloyloxy-2-hydroxyproxy) butane (R 1 in the general formula (2) is carbon atoms 2, R 2 is 4 carbon atoms, R 3 is 2 carbon atoms, atomic groups two having a polymerizable unsaturated group) 35.6 parts by weight, 0.007 parts by mass of methyl hydroquinone, and Then, 0.07 part by mass of 2,6-tert-butyl-p-cresol was charged and adjusted at 50 ° C. with stirring.
- R 1 in the general formula (2) is carbon atoms 2
- R 2 is 4 carbon atoms
- R 3 is 2 carbon atoms
- atomic groups two having a polymerizable unsaturated group 35.6 parts by weight
- 0.07 part by mass of 2,6-tert-butyl-p-cresol was charged and adjusted at 50 °
- Example 6 In a 2-liter four-necked flask equipped with a heating device, a stirrer, a thermometer, and a reflux condenser, 1,4-bis (3-acryloyloxy-2-hydroxyproxy) butane (R 1 in the general formula (2) is carbon atoms 2, R 2 is 4 carbon atoms, R 3 is 2 carbon atoms, atomic groups two having a polymerizable unsaturated group) 35.6 parts by weight, 0.007 parts by mass of methyl hydroquinone, and Then, 0.07 part by mass of 2,6-tert-butyl-p-cresol was charged and adjusted at 50 ° C. with stirring.
- R 1 in the general formula (2) is carbon atoms 2
- R 2 is 4 carbon atoms
- R 3 is 2 carbon atoms
- atomic groups two having a polymerizable unsaturated group 35.6 parts by weight
- 0.07 part by mass of 2,6-tert-butyl-p-cresol was charged and adjusted at 50 °
- Polyester polyol (number average molecular weight 2,000) obtained by reacting 1,6-hexanediol, neopentyl glycol and adipic acid in a nitrogen-substituted container equipped with a thermometer, a nitrogen gas inlet tube, and a stirrer ) 100 parts by mass, 10.6 parts by mass of 1,6-hexanediol, 13.4 parts by mass of 2,2-dimethylolpropionic acid, 106.3 parts by mass of dicyclohexylmethane diisocyanate, and 98 parts by mass of methyl ethyl ketone.
- the organic solvent solution of the urethane prepolymer which has an isocyanate group at the terminal was obtained by mixing and making it react on the conditions of the temperature of 80 degreeC in the said reaction container.
- an organic solvent solution of the urethane prepolymer 21.9 parts by mass of 2-hydroxyethyl acrylate, 0.003 parts by mass of methylhydroquinone, and 0.03 parts by mass of 2,6-tert-butyl-p-cresol And an organic solvent solution of a urethane resin having a polymerizable unsaturated bond in the side chain and an isocyanate group at the terminal of the main chain by reacting under a condition of 80 ° C. in the reaction vessel.
- a urethane resin composition (I ′) having a nonvolatile content of 33% by mass was obtained by chain extension reaction and distillation under reduced pressure.
- Polyester polyol (number average molecular weight 2,000) obtained by reacting 1,6-hexanediol, neopentyl glycol and adipic acid in a nitrogen-substituted container equipped with a thermometer, a nitrogen gas inlet tube, and a stirrer ) 100 parts by weight, 21.2 parts by weight of 1,6-hexanediol, 13.9 parts by weight of 2,2-dimethylolpropionic acid, 106.3 parts by weight of dicyclohexylmethane diisocyanate, and 93.8 parts by weight of methyl ethyl ketone The resulting mixture was mixed and reacted at a temperature of 80 ° C. in the reaction vessel to obtain an organic solvent solution of a urethane prepolymer having an isocyanate group at the terminal.
- an organic solvent solution of the urethane prepolymer 17.5 parts by mass of pentaerythritol triacrylate, 0.003 parts by mass of methylhydroquinone, and 0.03 parts by mass of 2,6-tert-butyl-p-cresol are mixed and reacted at a temperature of 80 ° C. in the reaction vessel to obtain an organic solvent solution of a urethane resin having a polymerizable unsaturated bond in the side chain and an isocyanate group at the end of the main chain. It was.
- a test film (4 cm long, 5 mm wide) made of the urethane resin was prepared.
- the elongation of the test film was evaluated according to the following evaluation criteria based on the measurement results obtained by the tensile test method (tensile speed: 50 mm / min).
- A The length of the test film after the tensile test was increased by 100% or more with respect to the length of the test film before the tensile test.
- ⁇ The length of the test film after the tensile test was extended by 50% or more and less than 100% with respect to the length of the test film before the tensile test.
- ⁇ ⁇ The length of the test film after the tensile test was extended in the range of 30% or more and less than 50% with respect to the length of the test film before the tensile test.
- ⁇ The length of the test film after the tensile test was extended in the range of 10% or more and less than 30% with respect to the length of the test film before the tensile test.
- the flexibility of the coating film constituting the article was evaluated according to the following evaluation criteria based on the measurement result according to the JIS K-5600-5-1 bending resistance test method (mandrel diameter 2 mm).
- a photopolymerization initiator a mixture of 1-hydroxy-cyclohexyl-phenyl-ketone and benzophenone
- the hardness of the coating film constituting the article was measured based on JIS K-5600-5-4 scratch hardness (pencil method).
- polycarbonate polyol refers to polycarbonate polyol (number average molecular weight 2,000) obtained by reacting 1,6-hexanediol, 1,5-pentanediol and diethyl carbonate.
- polyester polyol refers to a polyester polyol (number average molecular weight 2,000) obtained by reacting 1,6-hexanediol, neopentyl glycol and adipic acid.
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Abstract
Description
加熱装置、攪拌機、温度計及び還流冷却管を備えた2リットル4つ口フラスコに、メチルエチルケトン89.9質量部、ポリカーボネートポリオール(1,6-ヘキサンジオールと1,5-ペンタンジオールとジエチルカーボネートとを反応させて得られるポリカーボネートポリオール、数平均分子量2000)90質量部、2,2-ジメチロールプロピオン酸12.2質量部、1,6-ヘキサンジオール11.8質量部、ペンタエリスリトールジアクリレート(一般式(1)中のR1は、炭素原子数3個、重合性不飽和基を有する原子団2個)20.1質量部、メチルヒドロキノン0.004質量部、及び、2,6-tert-ブチル-p-クレゾール0.04質量部を仕込み、撹拌しながら50℃に調整した。
加熱装置、攪拌機、温度計及び還流冷却管を備えた2リットル4つ口フラスコに、メチルエチルケトン49.9質量部、ポリカーボネートポリオール(1,6-ヘキサンジオールと1,5-ペンタンジオールとジエチルカーボネートとを反応させて得られるポリカーボネートポリオール、数平均分子量2000)50質量部、2,2-ジメチロールプロピオン酸6.8質量部、1,6-ヘキサンジオール6.6質量部、ペンタエリスリトールジアクリレート(一般式(1)中のR1は、炭素原子数3個、重合性不飽和基を有する原子団2個)11.2質量部、メチルヒドロキノン0.0022質量部、及び、2,6-tert-ブチル-p-クレゾール0.022質量部を仕込み、撹拌しながら50℃に調整した。
加熱装置、攪拌機、温度計及び還流冷却管を備えた2リットル4つ口フラスコに、メチルエチルケトン89.1質量部、1,6-ヘキサンジオールとネオペンチルグリコールとアジピン酸とを反応させて得れるポリエステルポリオール(数平均分子量2,000)90質量部、2,2-ジメチロールプロピオン酸12質量部、1,6-ヘキサンジオール11.7質量部、ペンタエリスリトールジアクリレート(一般式(1)中のR1は、炭素原子数3個、重合性不飽和基を有する原子団2個)19.8質量部、メチルヒドロキノン0.004質量部、及び、2,6-tert-ブチル-p-クレゾール0.04質量部を仕込み、撹拌しながら50℃に調整した。
加熱装置、攪拌機、温度計及び還流冷却管を備えた2リットル4つ口フラスコに、メチルエチルケトン58.6質量部、ポリカーボネートポリオール(1,6-ヘキサンジオールと1,5-ペンタンジオールとジエチルカーボネートとを反応させて得られるポリカーボネートポリオール、数平均分子量2000)40質量部、2,2-ジメチロールプロピオン酸5.2質量部、1,6-ヘキサンジオール2.8質量部、ペンタエリスリトールジアクリレート(一般式(1)中のR1は、炭素原子数3個、重合性不飽和基を有する原子団2個)22質量部、メチルヒドロキノン0.005質量部、及び、2,6-tert-ブチル-p-クレゾール0.05質量部を仕込み、撹拌しながら50℃に調整した。
加熱装置、攪拌機、温度計及び還流冷却管を備えた2リットル4つ口フラスコに、1,4-ビス(3-アクリロイロキシ-2-ヒドロキシプロキシ)ブタン(一般式(2)中のR1は炭素原子数2個、R2は炭素原子数4個、R3は炭素原子数2個、重合性不飽和基を有する原子団2個)35.6質量部、メチルヒドロキノン0.007質量部、及び、2,6-tert-ブチル-p-クレゾール0.07質量部を仕込み、攪拌しながら50℃で調整した。
加熱装置、攪拌機、温度計及び還流冷却管を備えた2リットル4つ口フラスコに、1,4-ビス(3-アクリロイロキシ-2-ヒドロキシプロキシ)ブタン(一般式(2)中のR1は炭素原子数2個、R2は炭素原子数4個、R3は炭素原子数2個、重合性不飽和基を有する原子団2個)35.6質量部、メチルヒドロキノン0.007質量部、及び、2,6-tert-ブチル-p-クレゾール0.07質量部を仕込み、攪拌しながら50℃で調整した。
温度計、窒素ガス導入管、攪拌器を備えた窒素置換された容器中で、1,6-ヘキサンジオールとネオペンチルグリコールとアジピン酸とを反応させて得られるポリエステルポリオール(数平均分子量2,000)100質量部と、1,6-ヘキサンジオール10.6質量部と、2,2-ジメチロールプロピオン酸13.4質量部と、ジシクロヘキシルメタンジイソシアネート106.3質量部とを、メチルエチルケトン98質量部に混合し、前記反応容器中の温度80℃の条件下で反応させることによって、末端にイソシアネート基を有するウレタンプレポリマーの有機溶剤溶液を得た。
温度計、窒素ガス導入管、攪拌器を備えた窒素置換された容器中で、1,6-ヘキサンジオールとネオペンチルグリコールとアジピン酸とを反応させて得られるポリエステルポリオール(数平均分子量2,000)100質量部と、1,6-ヘキサンジオール21.2質量部と、2,2-ジメチロールプロピオン酸13.9質量部と、ジシクロヘキシルメタンジイソシアネート106.3質量部とを、メチルエチルケトン93.8質量部に混合し、前記反応容器中の温度80℃の条件下で反応させることによって、末端にイソシアネート基を有するウレタンプレポリマーの有機溶剤溶液を得た。
加熱装置、攪拌機、温度計及び還流冷却管を備えた2リットル4つ口フラスコに、ビスフェノールAジグリシジルエーテルのアクリル酸付加物(一般式(2)中のR1は炭素原子数2個、R2は炭素原子数15個、R3は炭素原子数2個、重合性不飽和基を有する原子団2個)73.4質量部、メチルヒドロキノン0.015質量部、及び、2,6-tert-ブチル-p-クレゾール0.15質量部を仕込み、攪拌しながら50℃で調整した。
加熱装置、攪拌機、温度計及び還流冷却管を備えた2リットル4つ口フラスコに、ビスフェノールAジグリシジルエーテルのアクリル酸付加物(一般式(2)中のR1は炭素原子数2個、R2は炭素原子数15個、R3は炭素原子数2個、重合性不飽和基を有する原子団2個)212質量部、メチルヒドロキノン0.04質量部、及び、2,6-tert-ブチル-p-クレゾール0.4質量部を仕込み、攪拌しながら50℃で調整した。
光重合開始剤(1-ヒドロキシ-シクロヘキシル-フェニル-ケトンとベンゾフェノンの混合物)を、実施例及び比較例で得た各ウレタン樹脂組成物に含まれるウレタン樹脂100質量部あたり4質量部混合し、それを、塗膜の膜厚が50μmとなるように、それぞれ離型フィルムの表面に塗布した。前記塗布物を25℃の環境下で24時間乾燥した後、高圧水銀灯(GSユアサ社製)を用いて、500mJ/cm2の紫外線を1パス照射し、前記離型フィルムを除去することによって、前記ウレタン樹脂からなる試験フィルム(縦4cm、横5mm)を作製した。
光重合開始剤(1-ヒドロキシ-シクロヘキシル-フェニル-ケトンとベンゾフェノンの混合物)を、実施例及び比較例で得た各ウレタン樹脂組成物に含まれるウレタン樹脂100質量部あたり4質量部混合し、それを、塗膜の膜厚が2μmとなるように、それぞれ金属板(未処理鋼板、厚さ0.8mm)の表面に塗布した。前記塗布物を100℃で30秒間乾燥した後、高圧水銀灯(GSユアサ社製)を用いて、500mJ/cm2の紫外線を1パス照射し、前記離型フィルムを除去することによって、前記金属板の表面に塗膜が積層した物品を得た。
光重合開始剤(1-ヒドロキシ-シクロヘキシル-フェニル-ケトンとベンゾフェノンの混合物)を、実施例及び比較例で得た各ウレタン樹脂組成物に含まれるウレタン樹脂100質量部あたり4質量部混合し、それを、塗膜の膜厚が15μmとなるように、それぞれガラス基材の表面に塗布した。前記塗布物を140℃で5分間乾燥した後、高圧水銀灯(GSユアサ社製)を用いて、500mJ/cm2の紫外線を1パス照射することによって、前記ガラス基材の表面に塗膜が積層した物品を得た。
Claims (6)
- 下記一般式(1)で示される2個以上の重合性不飽和基を有するアルキレンジオール(a1-1)または下記一般式(2)で示される2個以上の重合性不飽和基を有するオキシアルキレンジオール(a1-2)を含有するポリオール(a1)と、ポリイソシアネート(a2)とを反応させて得られる重合性不飽和基を有するウレタン樹脂(A)、及び、水性媒体(B)を含有するものであることを特徴とするウレタン樹脂組成物。
- 前記アルキレンジオール(a1-1)がペンタエリスリトールジアクリレートである請求項1に記載のウレタン樹脂組成物。
- 前記アルキレンジオール(a1-1)及び前記オキシアルキレンジオール(a1-2)の合計質量が、前記ウレタン樹脂(A)の製造に使用する原料の全量に対して0.1質量%~49質量%の範囲である請求項1に記載のウレタン樹脂組成物。
- 前記ポリオール(a1)が、さらにポリエステルポリオール、ポリエーテルポリオールまたはポリカーボネートポリオールを含有するものである請求項1に記載のウレタン樹脂組成物。
- 請求項1~4のいずれか1項に記載のウレタン樹脂組成物からなるコーティング剤。
- 請求項5に記載のウレタン樹脂組成物を塗布した物品。
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US14/781,010 US9969915B2 (en) | 2013-03-29 | 2014-02-25 | Urethane resin composition, coating agent, and article |
KR1020157022256A KR101812132B1 (ko) | 2013-03-29 | 2014-02-25 | 우레탄 수지 조성물, 코팅제 및 물품 |
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US9969915B2 (en) | 2018-05-15 |
CN105051112A (zh) | 2015-11-11 |
EP2980160A4 (en) | 2016-12-07 |
TW201446878A (zh) | 2014-12-16 |
KR101812132B1 (ko) | 2017-12-26 |
TWI616486B (zh) | 2018-03-01 |
EP2980160A1 (en) | 2016-02-03 |
KR20150109415A (ko) | 2015-10-01 |
JPWO2014156423A1 (ja) | 2017-02-16 |
US20160053146A1 (en) | 2016-02-25 |
CN105051112B (zh) | 2017-10-10 |
JP5780443B2 (ja) | 2015-09-16 |
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