Patent Number: 6,841,644

Title: Biopolymers obtained by solid state irradiation in an unsaturated gaseous atmosphere

Abstract: Disclosed are modified naturally occurring biocompatible biopolymers of plant and animal origin made by subjecting same to ionizing radiation in the presence of a mediating gas, typically acetylene to enable one to selectively enhance and modify one or more of the physiochemical properties of the starting materials which have a wide range of uses in medicine, food technology and other industrial applications. Notwithstanding the modifications, the biocompatibility of the biopolymer remains unchanged and no new or additional functional groups are introduced into the starting biopolymer.

Inventors: Phillips; Glyn Owen (Cardiff, GB), Du Plessis; Tjaart Andries (Pretoria, ZA), Al-Assaf; Saphwan (Wrexham, GB), Williams; Peter Anthony (Cardiff, GB)

Assignee: Phillips Hydrocolloids Research Limited

International Classification: C08B 11/00 (20060101); C08B 37/00 (20060101); C08B 11/20 (20060101); C08H 1/06 (20060101); C08H 1/00 (20060101); C08G 063/00 (); C08H 005/02 (); C08F 002/46 ()

Expiration Date: 01/11/2022