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:
Jun. 07, 1983
Filed:
Mar. 07, 1980
Fosco Bordini, Terni, IT;
Luigi Mauri, Terni, IT;
Moplefan S.p.A., Milan, IT;
Abstract
A bonded sheet for packaging is disclosed having a thickness of from 20 to 200 microns and comprising two films, one of which is obtained from chlorovinyl polymers and the other from olefinic polymers, and characterized in that one of the two films has, on its surface in contact with the other film, a metalized coating with a resistivity of from 1 to 5 Ohms. The chlorovinyl polymer film is a film, optionally stretched, prepared from polymers or copolymers of vinyl chloride, having a Fikentscher value K of from 40 to 80. The polyolefinic film is a film, optionally oriented by stretching, prepared from a polymer selected from the class consisting of a polyethylene with a melt index of from 0.5 to 15, a polypropylene with a melt index of from 1 to 20, a crystalline propylene/ethylene copolymer containing from 0.1 to 15% by weight of ethylene and with a melt index of from 1 to 20, or mixtures thereof. The metalized layer preferably consists of aluminum, and at least one of the two films is coated with a thermowelding layer.