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:
Aug. 17, 1982
Filed:
Jun. 28, 1979
Applicant:
Inventors:
Frank E All, Newark, NY (US);
Gary L Duncan, Pittsford, NY (US);
Assignee:
Mobil Oil Corporation, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B05D / ;
U.S. Cl.
CPC ...
428461 ; 15624411 ; 15624412 ; 15624424 ; 204 30 ; 2041 / ; 427 40 ; 427 41 ; 427172 ; 427173 ; 427250 ; 427295 ; 427296 ; 427304 ; 427322 ; 4274073 ; 428515 ; 428910 ;
Abstract
An oriented polypropylene film substrate and method of manufacturing an oriented polypropylene film having enhanced adhesion to metallized coatings which comprises the steps of coextruding the film substrate having a homopolymer polypropylene core layer, and an ethylene propylene outer layer on at least one side of the core layer, the core and outer layers containing no slip agent. The film substrate is biaxially oriented, and the outer layer is corona treated. A metal coating is then deposited on the corona treated outer layer.