Absorbable polyoxaesters containing amines and/ or amido groups
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United States of America Patent
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Jun 13, 2000
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N/A
app pub date -
Apr 20, 1998
filing date -
Apr 20, 1998
priority date (Note) -
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Abstract
The present invention describes a polyoxaester copolymers containing amines and/or amido groups and blends thereof with other polymers that may be used to produce surgical devices such as sutures, sutures with attached needles, molded devices, and the like. The polyoxaesters copolymer of the present invention is formed from a first divalent repeating unit of formula IA: [--C(O)--R.sub.30 --C(O)--] IA a second divalent repeating unit of the formula IB: [O--C(O)--C(R.sub.1)(R.sub.2)--O--(R.sub.3)--O--C(R.sub.1)(R.sub.2)--C(O)--]I and a third repeating unit of the formula: [--O--R.sub.12 --].sub.U, XVI and optionally a fourth repeating unit with a formula selected from the group consisting of: [--O--R.sub.4 --].sub.A, II [--O--R.sub.5 --C(O)--].sub.B, III ([--O--R.sub.5 --C(O)].sub.P --O--).sub.L G XI and combinations thereof wherein R.sub.12 contains an internal amine or internal amide group.
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