Patent ID: 6875810
Filing Date: 2005-04-05
Classification: B29B,C08G,C09J

Abstract:
1. An aqueous dispersion of a polyurethane resin obtained by reacting a mixture comprising: (A) an organic polyisocyanate; (B) a polyester polyol containing an aromatic metal sulfonate group; and (C) an aliphatic polyol being free from aromatic metal sulfonate and having a hydroxyl value of from 10 to 350, and then reacting the reacted mixture with (D) at least one member selected from the group consisting of polyamines and polyols each having a molecular weight of 300 or lower for chain extension, wherein the content of said aliphatic polyol unit (C) amounts to at least 55% by weight based on the solid content of said polyurethane resin.