Title:
【発明の名称】ポリ(エステル無水物)およびこれらの中間体
Document Type and Number:
Japanese Patent JP2000505499
Kind Code:
A
Abstract:
Biodegradable poly(ester-anhydrides) designed to display two-stage degradation profiles are described. The presence of the anhydride linkages allows a relatively rapid decrease in molecular weight, the extent of which is governed by the concentration of the anhydride linkages along the chain, followed by possible dissolution and a slower degradation of the remaining oligomers, the rate of which is governed by the composition of the polyester prepolymers. Methods for the preparation of the poly(ester-anhydrides) and their polyester precursors are also described.\!
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Inventors:
Story, Robson, F.
Dengue, Z.., David
Peterson, Dale, Earl.
Grunchy, Todd, Pea.
Dengue, Z.., David
Peterson, Dale, Earl.
Grunchy, Todd, Pea.
Application Number:
JP53101297A
Publication Date:
May 09, 2000
Filing Date:
February 21, 1997
Export Citation:
Assignee:
Depuy Orthopedic, Incorporated
International Classes:
C08G63/08; C08G63/692; C08G63/91; C08G67/04; C08L101/16; (IPC1-7): C08G63/91; C08G67/04
Attorney, Agent or Firm:
Kensuke Isshiki (2 outside)