Flexible, elastic and biodegradable film made of polymer based on lactic acid, capable of being suitable especially for the production of medical dressings
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United States of America Patent
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Mar 22, 1994
Grant Date -
N/A
app pub date -
Jul 20, 1992
filing date -
Jul 19, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The film is obtained directly by extrusion from the lactic acid-based polymer plasticised beforehand by incorporation of 5 to 30% by weight of the polymer of a glycerol ester obtained from an acid containing 4 carbon atoms in its molecule. The film has an elongation at break of more than 300% and is particularly suitable for the production of medical dressings.
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