Patent ID: 7972982
Filing Date: 2011-07-05
Classification: C08G,C09D,D06M,Y10T

Abstract:
1. A method for coating a sheet-form textile material, comprising applying an aqueous dispersion which comprises an anionically modified polyurethane urea prepared from A. an aromatic diisocyanate; B. a polyether polyol having a mean molecular weight of greater than 1500; C. at least one compound containing from 1 to 2 isocyanate-reactive groups and at least one ionogenic group; D. a polyamine having a mean molecular weight of at least 32; and E. water; wherein the mean total functionality of B, C, and D is in the range of from 1.85 to 2.2, the molar ratio of the isocyanate groups of A to the isocyanate-reactive groups of B, C, and D is greater than 1, and said anionically modified polyurethane urea contains in the range of from 800 to 1500 mmol of urethane groups/kg of anionically modified polyurethane urea and in the range of from 800 to 1800 mmol of urethane plus urea groups/kg of anionically modified polyurethane urea; to a sheet-form textile material.