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. 25, 1998
Filed:
Feb. 05, 1996
Applicant:
Inventor:
Andrew F Wilkie, Havermill, MA (US);
Assignee:
AEP Industries, Inc., South Hackensack, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B65B / ;
U.S. Cl.
CPC ...
428347 ; 428349 ; 428352 ; 428354 ; 428515 ; 428516 ; 428910 ; 53463 ; 53477 ;
Abstract
The invention presents a new use for modified polypropylene films, wherein the films are cold sealable for heat sensitive packaging operations. The films comprise in the following order: a cold seal cohesive layer, a core layer, and a cold seal release layer comprising a mixture of about 1 to 80% by weight butene-propylene copolymer and about 99 to 20% by weight butylene-ethylene copolymer.