Patent ID: 7705057
Filing Date: 2010-04-27
Classification: C08G,C08J,C09D

Abstract:
1. An aqueous dispersion comprising: (A) water; (B) a polymeric material which is a homopolymer having a repeat unit of general formula  and selected from the following: (d) a polymer comprising units of formula IV wherein Ar represents moiety (i), E and E′ represent oxygen atoms, G represents a direct link, m represents 0, w represents 1, r represents 0, s represents 1 and A and B represent 1; wherein said polymeric material has an inherent viscosity (IV) of at least 0.6 and is semi-crystalline; and (C) a surface active agent of the general formula A-L1-X-L2-B, wherein A represents a hydrophobic moiety; L1 represents a linking atom or group or a direct link; X represents a carbonyl or sulphone moiety; L2 represents a linking atom or group or a direct link; and B represents a hydrophilic moiety where said hydrophilic group is an ionic moiety.