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US 8,372,917 B2Granted
Polymeric blends and methods of using same
AssigneeFina Technology, Inc.
InventorsFengkui Li, Tim J. Coffy, Michel Daumerie
Life of this patent
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Abstract
A film comprising a polylactic acid and polypropylene blend having a haze of from about 10% to about 95% and a gloss 45° of from about 50 to about 125. A method of producing an oriented film comprising blending polypropylene and polylactic acid to form a polymeric blend, forming the polymeric blend into a film, and orienting the film. A method of producing an injection molded article comprising blending polypropylene and polylactic acid to form a polymeric blend, injecting the polymeric blend into a mold, and forming the article.
Claims19
A method of producing an oriented film comprising:
- blending a polypropylene copolymer and a polylactic acid to form a polymeric blend, wherein the polypropylene copolymer is a propylene heterophasic copolymer comprising a propylene homopolymer phase and a copolymer phase of a random propylene/ethylene copolymer and wherein the propylene/ethylene copolymer phase has an intrinsic viscosity of greater than 2.0 dl/g;
- and
- forming the polymeric blend into a film.
Dependencies are inferred from the claim text.