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:
Dec. 28, 1993
Filed:
Aug. 05, 1991
Applicant:
Inventors:
Clyde D Calhoun, Stillwater, MN (US);
Carl R Kessel, St. Paul, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428156 ; 428 40 ; 428 41 ; 428 42 ; 428352 ; 428161 ; 428163 ; 428167 ; 428172 ; 428173 ; 428195 ; 428202 ; 428906 ; 428214 ; 428215 ; 428220 ; 428336 ; 428338 ; 428339 ; 428447 ; 428448 ; 428449 ; 428180 ;
Abstract
A flexible carrier web has a planar surface bearing thereon a predetermined pattern consisting of at least one flat land area and at least one recess having a base and walls, and a layer of silicone on the land and/or the base of the recess while the walls of the recess are substantially free from the silicone. When that flexible carrier web is used as the backing of a pressure-sensitive adhesive layer, release values can be controlled simply by selecting the size and/or number of recesses.