process for preparing aqueous polyurethane dispersions, methods for coating leather or artificial leather and woven fabrics, paper, cardboard, plastic, wood or metals, and aqueous polyurethane dispersion

摘要

process for the preparation of aqueous polyurethane dispersions, containing from 20 to 50% by weight of an anionic polyurethane having an average particle size of 1 to 15 microns and providing films with a durable low gloss aspect.