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. 16, 1987
Filed:
Jun. 12, 1985
Applicant:
Inventors:
Guenther Crass, Taunusstein, DE;
Annegrete Bursch, Rudesheim, DE;
Peter Hammerschmidt, Wiesbaden, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; C09J / ;
U.S. Cl.
CPC ...
428215 ; 428343 ; 428345 ; 428447 ; 428451 ; 428516 ; 428910 ; 428520 ;
Abstract
A pressure-sensitive adhesive tape is described, which comprises a support film formed of a co-extruded, biaxially oriented multilayer polypropylene film and an adhesive coating applied to one surface of the film. The support film is composed of at least first and second layers having different compositions. The second layer of the support film, which faces away from the adhesive coating, has a thickness of less than one third of the total thickness of the adhesive tape, and contains an anti-adhesive substance.