The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least one component derived from biomass resources, a content of an organic acid in the dicarboxylic acid is more than 0 ppm and not more than 1,000 ppm relative to the dicarboxylic acid, and a pKa value of the organic acid at 25 C. is not more than 3.7.

The present invention aims to provide a polyester polyol having favorable reactivity and a favorable color tone, which can be used for obtaining a polyurethane having an excellent balance of flexibility, mechanical strength, and chemical resistance, and a method for producing the polyester polyol. The object can be achieved with a polyester polyol in which an aliphatic diol contains as a structural unit 1,10-decanediol derived from a biomass resource, and in which the aldehyde body content in the polyester polyol is 0.01 to 0.5% by weight, and a method for producing the polyester polyol.

A foaming thermoplastic polyurethane resin is a reaction product of a polyisocyanate component containing a bis(isocyanatomethyl)cyclohexane and a polyol component. In a peak of chromatogram obtained by measurement of the foaming thermoplastic polyurethane resin with gel permeation chromatography, the area of a high molecular weight component having a weight average molecular weight of 400,000 or more with respect to the total area of the peak is 25% or more and 60% or less.

A copolyester elastomer composition is disclosed that contains a molecular weight enhancing agent that reacts with the copolyester elastomer at high temperatures. The composition of the present disclosure has excellent flow properties prior to reaction with the molecular weight increasing agent. Once an article is formed, the article can then be heated above a threshold temperature necessary for a reaction to occur between the molecular weight increasing agent and the copolyester elastomer. The reaction causes an increase in melting temperature, a decrease in hardness, and a decrease in melt volume flow rate.

A method for producing a multicoat coating (M) on a substrate (S) that includes:(!) producing a basecoat (B) on the substrate by applying an aqueous basecoat material (b) to the substrate (S), the basecoat material being a two-component coating composition, and (II) producing a clearcoat (K) directly on the basecoat (B) by applying an aqueous clearcoat material (k) directly to the basecoat (B), the clearcoat material being a two-component coating composition.

Components for articles of footwear and athletic equipment including a foam are provided. The foam portion of the components and articles include a composition which includes a thermoplastic copolyester, the composition having a foam structure. A polymer layer is provided on at least on surface of the foam portion. The polymer layer can control or reduce the water uptake of the foam portion. Methods of making the compositions, foams, and components are provided, as well as methods of making an article of footwear including one of the foam components. In some aspects, the foams and foam components can be made by injection molding, or injection molding followed by compression molding.

A composition including at least one thermoplastic polyurethane and at least one polyamide comprising amine chain ends, wherein the polyamide is the reaction product of one or more monomers chosen from amino acids or aminocarboxylic acids, lactams and monomers resulting from the reaction between an aliphatic diamine and a dicarboxylic acid. Also, a composition obtained by the reaction of at least one thermoplastic polyurethane or thermoplastic polyurethane precursors and of at least one polyamide comprising amine chain ends, processes for preparing such compositions and articles made therefrom.

Disclosed is a method comprising: a) dispersing lignin into an alcohol-containing compound having a boiling point in the range of 120 C. to 300 C. to form a lignin dispersion; and b) contacting the lignin dispersion with an alkylene carbonate, optionally in the presence of a basic compound, at a temperature in the range of from 120 C. to 200 C. and a period of time in the range of from 0.25 hours to 24 hours to form an alkoxylated lignin dispersion.

A process comprising, consisting of, or consisting essentially of: foaming a reaction mixture containing at least one polyisocyanate and an isocyanate-reactive compound comprising at least one alkoxylated triazine-arylhydroxy-aldehyde condensate composition wherein the alkoxylated triazine-arylhydroxy-aldehyde condensate composition is a reaction product of a triazine-arylhydroxy-aldehyde condensate and at least one alkylene carbonate, is disclosed.

The embodiments described herein generally relate to methods and chemical compositions of triazine-arylhydroxy-aldehyde condensates. In one embodiment, a triazine-arylhydroxy-aldehyde condensate is reacted with at alkoxylation agent to form alkoxylated triazine-arylhydroxy-aldehyde condensates.