公开(公告)号：WO2009073197A1

公开(公告)日：2009-06-11

申请号：PCT/US2008/013350

申请日：2008-12-04

Applicant: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY ,  NARAYAN, Ramani ,  STAGNER, Jacqueline ,  DIAS ALVES, Vanessa

Inventor： NARAYAN, Ramani ,  STAGNER, Jacqueline ,  DIAS ALVES, Vanessa

IPC: C08B31/04

CPC classification number: C08G81/00 ,  C08L3/02 ,  C08L101/16 ,  C08L67/02

Abstract: The disclosure relates to a starch-polyester graft copolymer, for example formed by the reactive blending of a thermoplastic starch (TpS) and/or a modified thermoplastic starch (MTpS) with a biodegradable polyester. The thermoplastic starch includes starch (e.g., a high-amylose starch) and a plasticizer, and can further include a chemical modifier and an optional initiator. The graft copolymer preferably is completely (or substantially completely) biodegradable, for example based on the biodegradability of each of its components. The graft copolymer can be formed into sheets of material that can be subsequently thermoformed, for example into single-use, disposable articles.

Abstract translation: 本公开涉及淀粉 - 聚酯接枝共聚物，例如通过热塑性淀粉（TpS）和/或改性热塑性淀粉（MTpS）与可生物降解的聚酯的反应性共混形成。 热塑性淀粉包括淀粉（例如高直链淀粉）和增塑剂，并且还可包括化学改性剂和任选的引发剂。 接枝共聚物优选是完全（或基本上完全）可生物降解的，例如基于其各组分的生物降解性。 接枝共聚物可以形成为随后可以热成型的材料片，例如一次性使用的一次性制品。