Disclosed is an adhesive for laminated sheets comprising a urethane resin obtained by blending: (A) an acrylic polyol; (B) at least one component selected from carboxylic acids and carboxylic anhydrides; and (C) an isocyanate compound. The acrylic polyol (A) is obtained by polymerization of a polymerizable monomer, has a glass transition temperature of from 35 C. to 20 C., and has a hydroxyl value of from 0.5 to 40 mgKOH/g. The adhesive for laminated sheets is excellent in initial adhesion to a film, peel strength after aging and hydrolysis resistance for a long time under high temperature when a laminated sheet is produced, and wherein the adhesive does not impart an adverse effect to the appearance of the laminated sheet and the lamination process of films while improving the curability. The laminated sheet is suitably prepared using the adhesive for laminated sheets. An article comprising the laminated sheet can be prepared using the laminated sheet.

A prepolymer comprising acid functionality is made by a process comprising the step of contacting: (i) a di-isocyanate, (ii) a diol containing an acid group, and (iii) a polyol without an acid group, the contacting conducted under reaction conditions and in a solvent consisting essentially of dipropylene glycol dimethyl ether. The prepolymer is useful in the preparation of water-based polyurethane dispersions.

Provided is a flame-retardant coating agent for vehicle seats that contains (A) a nitrogen-containing compound, and (C) an aqueous thermoplastic resin. Also provided is a flame-retardant vehicle seat material that does not use a halogen compound or an antimony compound, that exhibits sufficient flame retardancy, and that suppresses the occurrence of marks from hot water.

Provided is a flame-retardant coating agent for vehicle seats that contains (A) a nitrogen-containing compound, and (C) an aqueous thermoplastic resin. Also provided is a flame-retardant vehicle seat material that does not use a halogen compound or an antimony compound, that exhibits sufficient flame retardancy, and that suppresses the occurrence of marks from hot water.

Provided is a humic acid-based coating suspension comprising humic acid, particles of an anti-corrosive pigment or sacrificial metal, and a binder resin dissolved or dispersed in a liquid medium, wherein the humic acid has a weight fraction from 0.1% to 50% based on the total coating suspension weight excluding the liquid medium. Also provided is an object or structure coated at least in part with such a coating.

A problem to be solved by the invention is to provide a method for producing leather-like sheets with excellent chemical resistance and discoloration resistance utilizing an aqueous urethane resin composition. The invention provides a method for producing a leather-like sheet in the form of a laminate including a film, the method including forming the film by applying an aqueous urethane resin composition onto a substrate and drying the composition, the aqueous urethane resin composition including a urethane resin, a nonionic emulsifier and an aqueous medium, the urethane resin being one obtained by reacting a polyol including a carboxyl group-containing polyol, an aromatic polyisocyanate and a chain extender, the urethane resin having a urea bond content of not more than 0.3 mol/kg. The film is preferably used as a skin layer and/or a topcoat layer of the leather-like sheet.

A method of preparing stable waterborne polyurethane nanocomposite with a long shelf-life time is described. The stability of the nanocomposite is achieved by effective mechanical and sonication mixing of diisocynate and clay. Also, the stability is achieved through optimization of the amount of clay and carboxylic acid with hydroxyl functionality.

Provided is a humic acid-based coating suspension comprising humic acid, particles of an anti-corrosive pigment or sacrificial metal, and a binder resin dissolved or dispersed in a liquid medium, wherein the humic acid has a weight fraction from 0.1% to 50% based on the total coating suspension weight excluding the liquid medium. Also provided is an object or structure coated at least in part with such a coating.

Provided are a solid electrolyte composition containing an inorganic solid electrolyte having a conductivity of an ion of a metal belonging to Group I or II of the periodic table and a binder having a specific hydrocarbon polymer segment and a specific segment, a solid electrolyte-containing sheet in which the same solid electrolyte composition is used and a manufacturing method therefor, an all-solid state secondary battery and a manufacturing method therefor, a polymer having a specific hydrocarbon polymer segment and a specific segment, and a non-aqueous solvent dispersion thereof.

A prepolymer comprising an acid group is made by a process comprising the step of contacting: (i) a di-isocyanate, (ii) a polyol containing an acid group, and (iii) a polyol without an acid group, the contacting conducted under reaction conditions and in a solvent consisting essentially of: (A) a first component consisting essentially of at least one glycol ether ketone, and (B) optionally, a second component consisting of at least one aprotic glycol ether. The prepolymer is useful in the preparation of water-based polyurethane dispersions.