Patent ID: 6677400
Filing Date: 2004-01-13
Classification: C08G,C09D,Y10T

Abstract:
An aqueous polyurethane resin dispersion comprisingi) a polyol component with a number-average molecular weight of at least 300 daltons, comprising at least one polyether diol initiated on an aromatic diol, ii) a polyol component with a number-average molecular weight of 62 to 299 daltons, iii) a monofunctional isocyanate-reactive compound with an ethylene oxide content of at least 50 wt. % and a molecular weight of at least 400 daltons, iv) a polyisocyanate, v) an aliphatic polyamine with a molecular weight of 60 to 300 daltons or hydrazine, and vi) a hydrophilic aliphatic diamine.