Blends of glycolide and/or lactide polymers and caprolactone and/or trimethylene carbonate polymers and absorbable surgical devices made
AssigneeUnited States Surgical Corporation
InventorsDonald S. Kaplan, Matthew Hermes, Ross R. Muth, John Kennedy
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Abstract
Polymer blends of glycolide and/or lactide homopolymer and/or glycolide/lactide copolymer and polycaprolactone and/or polytrimethylene carbonate homopolymer or copolymers thereof and absorbable surgical devices manufactured therefrom having improved mechanical properties, such as improved impact resistance and improved cyclic flex, are disclosed. The blends may be prepared by polymerizing a glycolide or lactide containing polymer in the presence of a polymer derived from trimethylene carbonate or .epsilon.-caprolactone.
Claims20
A method for preparing an absorbable polymer composition comprising:
- preparing a first polymer, said first polymer being made at least in part of trimethylene carbonate or .epsilon.-caprolactone;
- preparing a second polymer, said second polymer being made at least in part of glycolide or lactide, said second polymer being prepared by adding a monomer and initiator to a reactor containing said first polymer and polymerizing said second polymer in the presence of said first polymer, whereby a blend of said first and second polymers is formed.
Dependencies are inferred from the claim text.