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. 01, 1989
Filed:
Sep. 02, 1987
Applicant:
Inventor:
Thomas C Warren, Greer, SC (US);
Assignee:
W. R. Grace & Co.-Conn., Duncan, SC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428 349 ; 428 352 ; 4284758 ; 428516 ; 428518 ; 428520 ; 428913 ; 428212 ; 264171 ;
Abstract
Disclosed is a heat-shrinkable, oriented, multi-layer packaging film. The film has at least two layers comprising EVA. One of the EVA layers is of EVA having a melt index different from the melt index of the EVA of the other layer or layers.