HEATTSEALABLE OPAQUE PLASTICS FILM* AND MANUFACTURE THEREOF

Title:

HEATTSEALABLE OPAQUE PLASTICS FILM* AND MANUFACTURE THEREOF

Document Type and Number:

Japanese Patent JPS54133579

Kind Code:

A

Abstract:

Disclosed is an opaque film of thermoplastic organic material which has been oriented by biaxial stretching, comprising a base layer of a polymer or copolymer of an alpha -olefin having 2 to 6 carbon atoms containing between about 1 and 25 percent by weight, calculated on the weight of the polymer, of finely distributed solid particles ranging in size from about 0.2 to 20 mu m, and carried on at least one surface of the base layer, a heat-sealable layer comprising a copolymer of propylene with ethylene, a copolymer of propylene with butene, or a terpolymer of propylene with ethylene and a further alpha -olefin having from 4 to 10 carbon atoms. Also disclosed are a method of making this film and a package made therefrom.

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Inventors:

DEIITAA GEPUHARUTO
GIYUNTAA KURAASU
JIIKUFURIITO YANOOHA

Application Number:

JP3845079A

Publication Date:

October 17, 1979

Filing Date:

April 02, 1979

Export Citation:

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Assignee:

HOECHST AG

International Classes:

B32B27/32; B29D7/01; B32B27/20; C08J5/18; C08J7/04; B29C48/08; B29C48/10; (IPC1-7): B32B27/00

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