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公开(公告)号：EP3936659A1
公开(公告)日：2022-01-12
申请号：EP20795948.7
申请日：2020-03-24
申请人： DIC Corporation
发明人： FUJISHITA Norie , MAEDA Ryo
IPC分类号： D06N3/14 , C08G101/00 , C08K5/09 , C08L75/08 , C08G18/00 , C08G18/08 , C08G18/44 , C08G18/48
摘要： In the present invention, there is provided an urethane resin composition containing an urethane resin (A), water (B), and a surfactant (C) having no aromatic ring, and having a hydrophobic portion having 10 or more carbon atoms, wherein the urethane resin composition has a carbonate structure (X) and an oxyalkylene structure (Y) derived from the urethane resin (A). Further, the present invention provides a foamed urethane sheet which is formed from the urethane resin composition, wherein the foamed urethane sheet has a density of 200 to 1,000 kg/m 3 . The urethane resin composition according to claim 1, wherein the mass ratio of the carbonate structure (X) to the oxyalkylene structure (Y) [X/Y] is in the range of from 10/90 to 90/10.
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2.发明公开
公开(公告)号：EP4442769A1
公开(公告)日：2024-10-09
申请号：EP22901161.4
申请日：2022-11-24
申请人： DIC Corporation
发明人： TETSUI Tomohiro , UEGUCHI Miwa , MAEDA Ryo , NONAKA Ryo
摘要： The present invention provides a urethane resin composition including a urethane resin (A) having a nonionic group, water (B), and a powder (C), wherein the urethane resin (A) has a flow start temperature of 100°C or above, the mass ratio [(A)/(B)] of the urethane resin (A) to the water (B) is in the range of 50/50 to 80/20, and the bulk density of the powder (C) is 400 g/L or less. The present invention also provides a synthetic leather including at least a base fabric (i), an adhesive layer (ii), and a skin layer (iii), wherein the adhesive layer (ii) is formed from the urethane resin composition. The urethane resin composition can form a film with excellent peel strength and texture.
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公开(公告)号：EP3327066A1
公开(公告)日：2018-05-30
申请号：EP16827490.0
申请日：2016-05-12
申请人： DIC Corporation
CPC分类号： C08J3/16 , C08G18/00 , C08G18/76 , C08G18/7671 , C08J3/07 , C08J5/04 , C08J2375/04 , D06M15/564 , D06M15/71 , D06N3/14
摘要： The present invention provides a method for producing a coagulated article, which includes coagulating an aqueous urethane resin composition with a coagulant containing a metal salt and water and being heated to 40°C or higher. An object of the present invention is to provide a method for producing a coagulated article, from which a coagulated article having excellent texture can be obtained without using an organic solvent. According to the method of the present invention, a coagulated article having excellent texture can be obtained. Further, an organic solvent is not used for a coagulating bath, and therefore there is no fear of exposure to a harmful volatile substance or diffusion of the substance into the environment, and further the treatment of waste liquid of such a coagulating bath is easy, which contributes to suppression of the cost of production. Therefore, a coagulated article obtained by the method of the present invention can be advantageously used in producing gloves, a coating material, a simulated leather sheet, and the like.
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公开(公告)号：EP4435055A1
公开(公告)日：2024-09-25
申请号：EP22895519.1
申请日：2022-11-10
申请人： DIC Corporation
发明人： FUJISHITA Norie , MAEDA Ryo , TETSUI Tomohiro
IPC分类号： C08L75/04 , B32B5/18 , B32B27/40 , C08G18/00 , C08G18/08 , C08G18/48 , C08J9/04 , C08K5/053 , C08K5/09
CPC分类号： B32B5/18 , B32B27/40 , C08G18/00 , C08G18/08 , C08G18/48 , C08J9/04 , C08K5/053 , C08K5/09 , C08L75/04
摘要： The present invention provides a urethane resin composition containing a urethane resin (A) having a hydrophilic group, water (B), and a film-forming aid (C) containing a compound (c1) having a molecular weight of 300 or less having two to four alcoholic hydroxy groups. The present invention also provides a laminate having at least a substrate (i) and a foaming layer (ii) formed of the urethane resin composition. This urethane resin composition has excellent blending stability and can form a coating film having excellent crack resistance and texture even under mechanical foaming.
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公开(公告)号：EP4393702A1
公开(公告)日：2024-07-03
申请号：EP22880677.4
申请日：2022-09-08
申请人： DIC Corporation
发明人： MORIBATAKE Takuma , NAKAMOTO Yasuhiro , MAEDA Ryo
摘要： The present invention provides a laminate including a thermoplastic resin layer and a coating formed from a urethane resin composition including a urethane resin (A) having a nonionic group, water (B), and an epoxy compound (C), and also provides a synthetic leather including the laminate. The laminate including the coating formed from the urethane resin composition and the synthetic leather can exhibit excellent bleeding resistance and heat discoloration resistance.
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公开(公告)号：EP4169961A1
公开(公告)日：2023-04-26
申请号：EP21830052.3
申请日：2021-06-10
申请人： DIC Corporation
发明人： TSENG Yayi , MAEDA Ryo
摘要： The present invention provides a urethane resin composition including an anionic urethane resin (X) and water (Y), in which the anionic urethane resin (X) is produced using, as raw materials, a polycarbonate polyol (A-1) produced using biomass-derived decanediol as a raw material, and a polycarbonate polyol (A-2) produced using a biomass-derived dihydroxy compound having a cyclic ether structure as a raw material. The polycarbonate polyol (A-1) is preferably produced further using butanediol as a raw material. In the polycarbonate polyol (A-1), the molar ratio [(C4)/(C10)] of the butanediol (C4) to the biomass-derived decanediol (C10) is preferably within a range of 50/50 to 98/2.
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公开(公告)号：EP3816344A1
公开(公告)日：2021-05-05
申请号：EP19815091.4
申请日：2019-05-09
申请人： DIC Corporation
发明人： MAEDA Ryo
摘要： The present invention provides a synthetic leather including at least a base (i), an adhesive layer (ii), and a skin layer (iii). The adhesive layer (ii) is formed of a urethane resin composition including a urethane resin (A) produced using an aromatic polyisocyanate (a1) as a raw material and water (B). The skin layer (iii) is formed of a urethane resin composition including an anionic urethane resin (X) having an anionic group concentration of 0.15 mmol/g or less and water (Y). The aromatic polyisocyanate (a1) preferably includes toluene diisocyanate. The urethane resin (A) has an aromatic ring concentration of 0.1 to 2.5 mol/kg.
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公开(公告)号：EP4053216A1
公开(公告)日：2022-09-07
申请号：EP20880853.5
申请日：2020-09-10
申请人： DIC Corporation
发明人： MAEDA Ryo
摘要： A problem addressed by the present invention is to provide a urethane resin composition having an excellent texture and formulation stability in a urethane resin composition that contains water. A urethane resin composition characterized by containing a urethane resin (A) having an anionic group and a nonionic group, that employs a polycarbonate polyol (a1) that is liquid at normal temperature as a raw material and does not employ compounds (x2) having three or more hydroxyl groups as a raw material, a nonionic emulsifier (B), and water (C). In addition, the present invention provides a leather sheet characterized in that a coagulated product of the urethane resin composition is present in a fiber base material. The urethane resin (A) and the nonionic emulsifier (B) both preferably have an oxyethylene group and an oxypropylene group.
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公开(公告)号：EP3901366A1
公开(公告)日：2021-10-27
申请号：EP19899761.1
申请日：2019-12-03
申请人： DIC Corporation
发明人： MAEDA Ryo
摘要： The present invention provides a urethane resin composition including: a urethane resin (X) having an anionic group, and water (Y), the urethane resin (X) having a concentration of the anionic group of 0.2 mmol/g or less, and having a concentration of a structure represented by formula (1) of 1 to 6 mmol/g. The present invention also provides a coating formed from the urethane resin composition, and a synthetic leather including the coating as a skin layer. The structure, represented by formula (1), of the urethane resin (X) is preferably derived from polyoxyethylene polyoxypropylene glycol (a1-1) and/or polyoxyethylene polyoxytetramethylene glycol
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公开(公告)号：EP3901365A1
公开(公告)日：2021-10-27
申请号：EP19898432.0
申请日：2019-12-03
申请人： DIC Corporation
发明人： Tseng YaYi , MAEDA Ryo
摘要： The present invention provides a urethane resin composition including an anionic urethane resin (X) and water (Y). The anionic urethane resin (X) is produced using, as essential raw materials: a polyol (a) including a polycarbonate polyol (a1) produced using biomass-derived decanediol as a raw material; and a polyisocyanate (b) including an aliphatic polyisocyanate (b1) and an alicyclic polyisocyanate (b2). Furthermore, the present invention provides a dry coating formed from the urethane resin composition, and provides a synthetic leather including the coating as a skin layer. The polycarbonate polyol (a1) is preferably produced further using butanediol as a raw material. The molar ratio [(b1)/(b2)] of the aliphatic polyisocyanate (b1) to the alicyclic polyisocyanate (b2) is preferably within a range of 10/90 to 90/10.
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