A urethane compound (A) including units formed from (A1) an isocyanate and (A2) a long-chain alcohol represented by the formula HO—Z(Y—R).sub.n [wherein the R moieties are each independently —O—, —NH—, —O—C(═O)—, —NH—C(═O)—, —C(═O)—NH—, —O—C(═O)—NH—, —NH—C(═O)—O—, —NH—C(═O)—NH—, —NH—S(═O).sub.2—, —S(═O).sub.2—NH—, —NH—(CH.sub.2).sub.m—NH—S(═O).sub.2—, —NH—(CH.sub.2).sub.m—S(═O).sub.2—NH—, etc. (m is an integer of 1-5), Z is a direct bond or a di- or trivalent hydrocarbon group having 1-5 carbon atoms, and n is 1 or 2]. Also disclosed is a urethane mixture containing the urethane compound (A), and at least one selected from the polyisocyanate (A1), the long-chain alcohol (A2), a blocking agent (A3) and an alcohol compound (A4); an aqueous urethane composition; a method for producing the aqueous urethane composition; a method of treating a substrate; and a treated textile product.

A polyurethane-based UV absorber, obtained by reacting a UV absorber having a reactive hydrogen with a polyisocyanate and a diol or polyol; wherein the weight average molecular weight of the polyurethane-based UV absorber is in a range of 10,000 to 200,000.

A method for obtaining self-cleaning and self-sanitizing surfaces of finished leather, comprising the steps of deposition of two coating layers containing respective active mixtures on the finished leather surface, in which a first active mixture comprises a film-forming compound based on polymers and filler, a flow additive compound, a cross-linking compound, an anti-oxidant compound and an aqueous dispersion, and a second active mixture comprises a water-based auxiliary flow additive compound, a silicone emulsion, a solvent aliphatic prepolymer, a photo-catalyst compound, a water repellent agent, a biocide action powder agent and solvent agents and/or wetting agents and/or dispersing agents and/or anti-foam agents.

Provided is a method for forming a multilayer coating film including the following steps (1) to (4): (1) applying a base paint (X) to a substrate to form a base coating film; (2) applying a specific effect pigment dispersion (Y) to the base coating film formed in step (1) to form an effect coating film with a specific dry film thickness; (3) applying a clear paint (Z) to the effect coating film formed in step (2) to form a clear coating film; and (4) heating the uncured base coating film, the uncured effect coating film, and the uncured clear coating film formed in steps (1) to (3) to simultaneously cure these three coating films.

Described herein is a blocked polyisocyanate crosslinking agent obtained from reactions of components including a). at least one polyisocyanate selected from the group consisting of aliphatic polyisocyanate, cycloaliphatic polyisocyanate and polyisocyanate-functional polymer and b). at least one beta-diketone. Also described herein is a method of preparing a blocked polyisocyanate crosslinking agent as well as coating compositions including the blocked polyisocyanate crosslinking agent.

A digital printed fabric includes a base cloth and a digital printing ink disposed on the base cloth, and a manufacturing method for the digital printing ink includes the following steps. A first thermal process including mixing a dye, a crosslinking agent, and a polyol is performed, such that a polymer dye is formed, in which a reaction temperature of the first thermal process is between 70° C. and 90° C. A second thermal process including mixing the polymer dye and an aqueous bridging agent is performed, such that a first mixture is formed, in which a reaction temperature of the second thermal process is between 90° C. and 120° C. A third thermal process including mixing the first mixture and a chain extender is performed, such that the digital printing ink is formed, in which a reaction temperature of the third thermal process is between 120° C. and 150° C.

A modified polycarbodiimide compound which is obtained by modifying at least some of carbodiimide groups in a polycarbodiimide derived from a diisocyanate compound, said polycarbodiimide having a terminal blocked with a hydrophilic compound, with an aromatic heterocyclic compound such as 3,5-dimethylpyrazole having endocyclic secondary amine nitrogen has a potential for a cuing agent, and exhibits the activity of the carbodiimide groups by being unblocked at relatively low temperatures.

The present invention provides a polyisocyanate composition comprising at least one isocyanate compound selected from the group consisting of an aliphatic isocyanate and an alicyclic isocyanate as a skeleton, wherein an average value of a total number of isocyanate groups blocked with a blocking agent and not blocked with a blocking agent per polyisocyanate molecule is 2 or more, and among the isocyanate groups in the polyisocyanate composition, 1 mol % or more and 99 mol % or less are blocked with a blocking agent, and the like.

An one-part polyurethane composition, including: A) 15-75 wt.-% of at least one isocyanate-functional polyurethane polymer; B) 5-30 wt.-% of at least one organic thixotropy agent; C) 2-25 wt.-% of at least one plasticizer having viscosity of less than 500 mPa s, measured at 0° C. with cone-plate viscosimeter, shear rate 10 s.sup.−1, cone angle 1°, spindle 25-2, and cone tip-plate distance of 0.05 mm; D) 0-15 wt.-% of at least one solvent; E) 0-50 wt.-% of at least one filler; F) at least one catalyst for curing of polyurethane compositions; wherein isocyanate-functional polyurethane polymer has NCO content in range of 0.8%-2.5% by weight and is obtained from reaction of methylene diphenyl diisocyanate (MDI) and polyol in NCO/OH ratio of at least 3/1 and subsequent removal of non-reacted MDI; and polyol has viscosity, measured according to ASTM D4878-15 at 25° C., of less than 2000 mPa s; and isocyanate-functional polyurethane polymer has remaining content of MDI of at most 0.5% by weight.

A moisture-curable composition, including at least one organic polymer P containing reactive silane groups, between 1.0 wt.-% and 25.0 wt.-%, preferably between 2.0 wt.-% and 20 wt.-%, in particular between 2.5 wt.-% and 10 wt.-%, based on the total composition, of dimethyl or diethyl esters of aliphatic C3 to C5 dicarboxylic acids, and at least one curing catalyst for alkoxysilane groups. The moisture-curable composition is particularly suitable as elastic adhesive, coating, filler, or sealant and shows superior overpaintability, in particular with automotive topcoats or similar paints.