The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 11, 2008
Filed:
Sep. 25, 2002
Takashi Yamashita, Kanagawa, JP;
Gen Kanai, Mie, JP;
Takashi Yamashita, Kanagawa, JP;
Gen Kanai, Mie, JP;
Japan Polypropylene Corporation, Tokyo, JP;
Abstract
A laminated film of a propylene resin layer and an ethylene resin layer is provided, which does not require solvent removal and recovery devices, etc., is low in influences against working environments and a danger of occurrence of fire, and has a high interlaminar adhesive force. That is, the invention relates to a laminated film prepared by melt extrusion laminating, without via an anchor coating agent, an ethylene based resin mainly comprising a linear ethylene/α-olefin copolymer having: a density of from 0.870 to 0.910 g/cm; and an MFR of from 1 to 100 g/10 min., the copolymer being obtained by copolymerizing ethylene and an α-olefin having from 3 to 20 carbon atoms, on the surface of a propylene based resin film formed from a crystalline propylene based random copolymer resin having a melting peak temperature of not higher than 140° C., as prepared using a metallocene catalyst.