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:
Feb. 28, 1995
Filed:
Jan. 19, 1993
Applicant:
Inventor:
Helmut Jenne, Schriesheim, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428213 ; 428349 ; 4284758 ; 4284761 ; 428483 ; 428517 ; 428521 ;
Abstract
A heat-sealable plastic film produced by coextrusion or lamination, comprising 2 layers A and C and, if desired, a layer B and, if desired, a layer of an adhesion promoter for bonding each two of the layers A, B (if present) and C (the sum of the thicknesses or of the weights of A, B (if present) and C in each case being 100) comprises from 1 to 50 % of a layer of a heat-sealable, impact resistant polystyrene A, up to 95% of a base layer B and from 1 to 99% by weight of a high-melting plastic layer C.