Patent ID: 9239409
Filing Date: 2016-01-19
CPC Classification: B29D,C08G,C08J,C08L,C09D,G02B,G02C

Claim Text:
1. A water-soluble and thermally-crosslinkable hydrophilic polymeric material, comprising: (a) from about 20% to about 95% by weight of first polymer chains derived from an epichlorohydrin-functionalized polyamine or polyamidoamine; (b) from about 5% to about 80% by weight of second polymer chains derived from a copolymer which is a polymerization product of a composition comprising about 50% or less by weight of one or more reactive vinylic monomer and (2) at least one phosphorylcholine-containing vinylic monomer, wherein said one or more reactive vinylic monomers are vinylic monomers having a carboxyl group or an amino group, wherein the second polymer chains are covalently attached to the first polymer chains through one or more covalent linkages each formed between one azetitdinium group of the epichlorohydrin-functionalized polyamine or polyamidoamine and one amino or carboxyl group of the copolymer; and (c) azetidinium groups which are parts of the first polymer chains or pendant groups covalently attached to the first polymer chains.