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. 30, 1992
Filed:
Oct. 22, 1990
Applicant:
Inventors:
Ingo Schinkel, Walsrode, DE;
Ulrich Reiners, Neuenkirchen, DE;
Assignee:
Wolff Walsrode AG, Walsrode, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428349 ; 428516 ; 428518 ; 428330 ; 428331 ;
Abstract
An improved heat-laminatable, high-glass and high-slip, at least monoaxially stretched multilayer film comprises at least one base layer I consisting essentially of polypropylene, an outer layer II which is thin by comparison with layer I and which consists essentially of polypropylene and an addition of an anti-blocking additive and a heat-activatable, heat-laminatable layer III containing an ethylene/vinyl acetate copolymer A and an ethylene/ethyl acrylate copolymer B1 and/or an ethylene/acrylic acid copolymer B2, the base layer I containing no anti-blocking additives.