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:
May. 13, 1997
Filed:
Jul. 06, 1995
Applicant:
Inventors:
Katharina J Bischof, Duesseldorf, DE;
Luigi Pastore, Grevenbroich, DE;
Wilhelm Kuester, Kaarst, DE;
Lynn E Faykish, Minnepolis, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
4284111 ; 428212 ; 428500 ; 428913 ; 428 413 ; 428 423 ; 283 72 ;
Abstract
The invention provides a transparent multilayer film comprising a cover layer, a destructible or irreversibly deformable layer, respectively, a pattern of adhesion-regulating material between the cover layer and the damagable layer, and an adhesive layer for bonding with a substrate. The damagable layer has a thickness of at least 10 .mu.m. The following relationship applies to the cohesive strength as well as the adhesion between the layers: a and d>c>b whereby