Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1998-05-11
2000-10-24
Dixon, Merrick
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
428161, 428338, 4285426, B32B 300
Patent
active
061364169
ABSTRACT:
Cube corner articles are disclosed in which a substrate has a base surface and a structured surface opposite the base surface. The structured surface has a first and second zone of cube corner elements bordered by grooves, and one of these zones is raised relative to the other one. In one aspect, the raised zone has groove bottoms that are at least as high relative to the base surface as tops of cube corner elements in the other zone. In another aspect, tops of cube corner elements in the raised zone are higher than tops of cube corner elements in the other zone.
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Benson Gerald M.
Smith Kenneth L.
3M Innovative Properties Company
Dixon Merrick
Jensen Stephen C.
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