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. 19, 1986
Filed:
Apr. 16, 1985
Applicant:
Inventors:
Hartmut Hensel, Schlangenbad, DE;
Helmut Monzer, deceased, late of Wiesbaden, DE;
Assignee:
American Hoechst Corporation, Somerville, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428480 ; 428482 ; 428910 ; 528272 ; 15624411 ; 15624424 ; 264171 ; 264173 ; 264345 ;
Abstract
A biaxially oriented thermo-fixed multilayer film is described, consisting of thermoplastic polyester materials having different melting points and having an essentially scratch-free surface. The characterizing features of the multilayer film described consist in the fact that a cover layer of a polyester B is applied to at least one surface of a base layer of thermoplastic polyester A, said polyester B having a lower melting point than polyester A, and by the fact that no scratches longer than 3.0 mm and greater than 10 microns in cross-section are present on the surface of the cover layer.