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:
Nov. 19, 1991
Filed:
Jul. 27, 1990
Applicant:
Inventors:
Leland L Liu, Macedon, NY (US);
Patricia A Cyr, Farmington, NY (US);
Assignee:
Mobil Oil Corporation, Fairfax, VA (US);
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B29C / ; B29C / ; B32B / ;
U.S. Cl.
CPC ...
264 37 ; 264 41 ; 264129 ; 264171 ; 2642103 ; 2642902 ; 427209 ; 427302 ; 427386 ; 4273884 ; 4273935 ;
Abstract
A method for producing a heat sealable structure includes coextruding a substrate layer including a white opaque, cavitated polyolefin film with a second layer which includes a heat sealable ethylene propylene random copolymer, ethylene-propylene block copolymer or ethylene-propylene butene-1 terpolymer; biaxially orienting the coextrudate; treating to increase surface energy; applying a primer coating on the surface; and, applying a surface layer which includes vinylidene chloride copolymer.