Copolyesters with minimized hydrolytic instability and crystalline absorbable copolymers thereof
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United States of America Patent
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Jan 7, 2003
Grant Date -
Sep 20, 2001
app pub date -
Dec 14, 2000
filing date -
Nov 6, 1998
priority date (Note) -
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Abstract
The present invention is directed to crystalline, absorbable block/segmented copolymers which are the reaction product of a linear prepolymer which is a polytrimethylene dicarboxylate of succinic, glutaric, or adipic acid and either glycolide, 1-lactide, or mixtures thereof. Preferably the prepolymer is preliminarily end-grafted with a further monomer such as trimethylene carbonate or .epsilon.-caprolactone. The crystalline copolymers of this invention are tailored for fabrication into several forms of absorbable biomedical devices including monofilament sutures.
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