Copolymers of lactide and/or glycolide with 1,5-dioxepan-2-one
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United States of America Patent
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Sep 11, 1984
Grant Date -
N/A
app pub date -
Jun 17, 1983
filing date -
Jun 17, 1983
priority date (Note) -
Expired
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Abstract
Copolymers are prepared from 1,5-dioxepan-2-one and lactide and/or glycolide. The copolymers are useful in surgical applications such as sutures, suture lubricants, and allied surgical products. 1,5-Dioxepan-2-one is produced by a new process comprising first reacting ethylene glycol with an alkyl acrylate to form alkyl 3-(2-hydroxyethoxy)propionate, which is then cyclized by contacting with a trans-esterification catalyst.
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