Biodegradable films having enhanced ductility and breathability

Details Biodegradable films having enhanced ductility and breathability Biodegradable films having enhanced ductility and breathability

2005-06-14

2005-06-14

Dye, Rena (Department: 1774)

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

C428S212000, C428S213000, C428S216000, C428S304400

Reexamination Certificate

active

06905759

ABSTRACT:
The present invention is directed to biodegradable films and biodegradable precursor films having enhanced breathability and ductility. The films contain a biodegradable polymer and a water soluble polymer. The biodegradable polymer is preferably polycaprolactone, and the water soluble polymer is preferably polyethylene oxide. The precursor film of the present invention preferably has a water vapor transmission rate of at least 500 g/24 hrs/m2. The biodegradable film of the present invention preferably has a water vapor transmission rate of at least 2500 g/24 hrs/m2.

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