04157437 is referenced by 60 patents and cites 6 patents.

Relatively high molecular weight, fiber-forming, crystalline copolymers of lactide and glycolide are prepared in a two-stage polymerization process. In the first stage there is prepared a random copolymer of a major proportion of an optically active lactide with a minor proportion of glycolide or d,l-lactide. In the second stage, a major amount of glycolide and a minor amount of lactide monomers are admixed with the copolymer of the first stage and the polymerization resumed until there is obtained a high molecular weight addition copolymer of lactide and glycolide containing from about 50 to 75 wt percent of units derived from glycolide. The polymer is fiber-forming and useful in the preparation of absorbable surgical sutures.

Title
Addition copolymers of lactide and glycolide and method of preparation
Application Number
809737
Publication Number
4157437
Application Date
June 12, 1978
Publication Date
June 5, 1979
Inventor
David Wasserman
Springfield
NJ, US
A Darline Mellon
Bridgewater
NJ, US
Yuzi Okuzumi
Belle Mead
NJ, US
Agent
Wayne R Eberhardt
Assignee
Ethicon
NJ, US
IPC
C08G 63/08
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