Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1991-08-05
1993-12-28
Robinson, Ellis P.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
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, B32B 320
Patent
active
052738051
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.
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Calhoun Clyde D.
Kessel Carl R.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Neaveill Darla P.
Robinson Ellis P.
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