Abstract: 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/m3. 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.

Abstract: The present invention provides an urethane resin composition containing an urethane resin (A), water (B), and a film forming auxiliary (C), wherein the film forming auxiliary (C) is a polyethylene glycol (c1) and/or a polyethylene glycol (c2) having an alkoxy group having 11 or less carbon atoms. Further, the present invention provides a layered product having at least a substrate (i) and a foamed layer (ii) which is formed from the above-mentioned urethane resin composition. The polyethylene glycol (c1) and the polyethylene glycol (c2) preferably have a weight average molecular weight in the range of from 100 to 4,000. The urethane resin (A) preferably has an anionic group.

Abstract: A method for producing a coagulate includes: incorporating, into an aqueous urethane resin composition containing an aqueous urethane resin having an acid value of 0.01 mg KOH/g or more, a thickening agent having an oxyethylene group content of 2×10?2 mol/g or less in an amount in the range of from 0.01 to 30 parts by mass, relative to 100 parts by mass of the aqueous urethane resin, to thicken the composition; and then coagulating the thickened composition using a coagulant containing a metal salt). A porous structure can be formed from an aqueous urethane resin composition without subjecting the composition to heating or foaming step, and therefore a coagulate having a porous structure can be stably obtained with ease.

Abstract: The present invention is to provide a method for manufacturing synthetic leather in which, after obtaining a thickened liquid by adding a thickening agent (B) with an oxyethylene group content of 2×10?2 mol/g or less to an aqueous urethane resin composition containing an aqueous urethane resin (A) having an acid value of 0.01 mgKOH/g or higher in a range of 0.01 to 30 parts by mass relative to 100 parts by mass of the aqueous urethane resin (A), the thickened liquid is coated on a base and coagulated with a coagulating agent (C) containing a metal salt (c-1). As the thickening agent, it is preferable to use one or more kinds of thickening agent that is selected from the group consisting of a cellulose thickening agent, an acryl thickening agent, and a urethane thickening agent. Furthermore, as the metal salt (c-1), calcium nitrate is preferable.

Abstract: The present invention provides a glove having a skin made from an aqueous urethane resin composition including an aqueous urethane resin (A), an aqueous medium (B), and a fluorine compound (C), in which the fluorine compound (C) is a fluorine compound (C-1) that is a polymer of a polymerizable monomer (c1-1) having a fluorinated alkyl group having 4 to 6 carbon atoms and a polymerizable monomer (c1-2) having a polyoxyethylene structure represented by general formula (2), or a fluorine compound (C-2) that is a polymer of a polymerizable monomer (c2-1) having a polymerizable unsaturated group at both ends of a poly(perfluoroalkylene ether) chain and a polymerizable monomer (c2-2) having a polyoxyalkylene structure represented by general formula (4).

Abstract: The present invention provides a glove including a coagulated film of an aqueous polyurethane composition containing anionic polyurethane (A), which has an oxyalkylene group content within a range of 4 to 12 mol/kg and a urea bond content of 0.2 mol/kg or less, and an aqueous medium (B). The anionic polyurethane (A) is preferably the reaction product of polyoxytetramethylene glycol, a glycol having a carboxyl group, ethylene glycol, and diphenylmethane diisocyanate or the reaction product of polyoxytetramethylene glycol, a glycol having a carboxyl group, butanediol, and diphenylmethane diisocyanate. The average particle diameter of the anionic polyurethane (A) is preferably within a range of 0.01 to 1 ?m.

Abstract: A method for manufacturing gloves includes adding a thickening agent (B) having an oxyethylene group content of 2×10?2 mol/g or less to an aqueous urethane resin composition containing an aqueous urethane resin (A) having an acid value of 0.01 mgKOH/g or higher in a range of 0.01 to 30 parts by mass relative to 100 parts by mass of the aqueous urethane resin (A) to obtain a thickened liquid; and (i) immersing fiber-knitted gloves in the thickened liquid and subsequently performing coagulation in a coagulation bath (C) containing a metal salt (c-1) or (ii) immersing fiber-knitted gloves previously immersed in a coagulation bath (C) containing a metal salt (c-1) in the thickened liquid to perform coagulation. As the thickening agent (B), a cellulose thickening agent, an acryl thickening agent, or a urethane thickening agent can be used. Furthermore, as the metal salt (c-1), calcium nitrate can used.

Abstract: The present invention is to provide a method for manufacturing synthetic leather in which, after obtaining a thickened liquid by adding a thickening agent (B) with an oxyethylene group content of 2×10?2 mol/g or less to an aqueous urethane resin composition containing an aqueous urethane resin (A) having an acid value of 0.01 mgKOH/g or higher in a range of 0.01 to 30 parts by mass relative to 100 parts by mass of the aqueous urethane resin (A), the thickened liquid is coated on a base and coagulated with a coagulating agent (C) containing a metal salt (c-1). As the thickening agent, it is preferable to use one or more kinds of thickening agent that is selected from the group consisting of a cellulose thickening agent, an acryl thickening agent, and a urethane thickening agent. Furthermore, as the metal salt (c-1), calcium nitrate is preferable.

Abstract: To provide an aqueous resin composition including: an anionic polyurethane (A) having an aromatic ring; an acrylonitrile butadiene rubber (B); an aqueous medium (C); a vulcanizing agent (D); and a vulcanizing accelerator (E). The anionic polyurethane (A) is preferably a product of reaction of polyoxytetramethylene glycol, a carboxyl group-containing glycol, ethylene glycol, and diphenylmethane diisocyanate, or a product of reaction of polyoxytetramethylene glycol, a carboxyl group-containing glycol, butanediol, and diphenylmethane diisocyanate. An object of the invention is to provide a mixture of aqueous polyurethane and NBR having excellent storage stability, even in a case where the vulcanizing agent and the vulcanizing accelerator are added.

Abstract: A method for producing a porous body includes: incorporating, into an aqueous urethane resin composition containing an aqueous urethane resin having an acid value of 0.01 mg KOH/g or more, a thickening agent having a carboxyl group and having an oxyethylene group content of 2×10?2 mol/g or less in an amount in the range of from 0.01 to 30 parts by mass, relative to 100 parts by mass of the aqueous urethane resin, to thicken the composition; and then coagulating the thickened composition using a coagulant containing a metal salt. A porous body having vertically long cells can be produced using an aqueous urethane resin composition. The obtained porous body has excellent texture, elastic force, peel strength, and water vapor permeability, as compared to a porous body of a closed-cell type.

Abstract: A method for producing a coagulate includes: incorporating, into an aqueous urethane resin composition containing an aqueous urethane resin having an acid value of 0.01 mg KOH/g or more, a thickening agent having an oxyethylene group content of 2×10?2 mol/g or less in an amount in the range of from 0.01 to 30 parts by mass, relative to 100 parts by mass of the aqueous urethane resin, to thicken the composition; and then coagulating the thickened composition using a coagulant containing a metal salt). A porous structure can be formed from an aqueous urethane resin composition without subjecting the composition to heating or foaming step, and therefore a coagulate having a porous structure can be stably obtained with ease.

Abstract: The present invention provides a glove having a skin made from an aqueous urethane resin composition including an aqueous urethane resin (A), an aqueous medium (B), and a fluorine compound (C), in which the fluorine compound (C) is a fluorine compound (C-1) that is a polymer of a polymerizable monomer (c1-1) having a fluorinated alkyl group having 4 to 6 carbon atoms and a polymerizable monomer (c1-2) having a polyoxyethylene structure represented by general formula (2), or a fluorine compound (C-2) that is a polymer of a polymerizable monomer (c2-1) having a polymerizable unsaturated group at both ends of a poly(perfluoroalkylene ether) chain and a polymerizable monomer (c2-2) having a polyoxyalkylene structure represented by general formula (4).

Abstract: To provide an aqueous resin composition including: an anionic polyurethane (A) having an aromatic ring; an acrylonitrile butadiene rubber (B); an aqueous medium (C); a vulcanizing agent (D); and a vulcanizing accelerator (E). The anionic polyurethane (A) is preferably a product of reaction of polyoxytetramethylene glycol, a carboxyl group-containing glycol, ethylene glycol, and diphenylmethane diisocyanate, or a product of reaction of polyoxytetramethylene glycol, a carboxyl group-containing glycol, butanediol, and diphenylmethane diisocyanate. An object of the invention is to provide a mixture of aqueous polyurethane and NBR having excellent storage stability, even in a case where the vulcanizing agent and the vulcanizing accelerator are added.

Abstract: The present invention provides a glove including a coagulated film of an aqueous polyurethane composition containing anionic polyurethane (A), which has an oxyalkylene group content within a range of 4 to 12 mol/kg and a urea bond content of 0.2 mol/kg or less, and an aqueous medium (B). The anionic polyurethane (A) is preferably the reaction product of polyoxytetramethylene glycol, a glycol having a carboxyl group, ethylene glycol, and diphenylmethane diisocyanate or the reaction product of polyoxytetramethylene glycol, a glycol having a carboxyl group, butanediol, and diphenylmethane diisocyanate. The average particle diameter of the anionic polyurethane (A) is preferably within a range of 0.01 to 1 ?m.

Abstract: A method for producing a coagulated article includes coagulating an aqueous urethane resin composition with an alcohol solvent having 2 to 6 carbon atoms. A coagulated article having excellent texture and having excellent texture can be obtained. Further, an alcohol solvent with the number of carbon atoms being small is used for a coagulating bath, which means that the burden on the environment is small. Therefore, a coagulated article obtained by the method can be advantageously used in producing gloves, a coating material, a simulated leather sheet, and the like. With respect to the alcohol solvent, from the viewpoint of achieving a further improvement in the texture of the coagulated article due to having high penetrating property into a resin-blended liquid and an isopropyl group having appropriate hydrophobicity, 2-propanol is preferably used.