Patent ID: 7235297
Filing Date: 2007-06-26
Classification: C08F,Y10T

Abstract:
1. A cross-linked polyether derived from a cross-linked polyester, said cross-linked polyether is obtained by: i) copolymerizing at least one monomer derivative of an acrylic, methacrylic, maleic and/or itaconic acid with (a) at least one cross-linker having at least two polymerizable terminal end groups, with the exception of epoxy and oxetane end groups, or (b) divinyl benzene to produce the cross-linked polyester; ii) reducing said cross-linked polyester of step i) to give a cross-linked polyol resin; and iii) reacting said cross-linked polyol resin of step ii) with a cyclic ether or a cyclic amine to give said cross-linked polyether.