Blends of absorbable polyoxaesters containing amines and/or amide groups
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United States of America Patent
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Jul 15, 1997
Issued Date -
N/A
app pub date -
Mar 5, 1996
filing date -
Mar 6, 1995
priority date (Note) -
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Abstract
The present invention describes aliphatic polyoxaesters 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 aliphatic polyoxaesters of the present invention have a first divalent repeating unit of formula I: [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 second repeating unit of the formula: [--O--R.sub.12 --].sub.u, XVI and optionally a third 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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