Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1989-08-01
1992-01-14
Robinson, Ellis P.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
428 40, 428292, 428294, 428295, 428343, 428354, 428107, 428109, 428114, 428157, 428161, 428163, 428165, 428296, 428346, 428349, 428352, 428355, 428515, 428520, 428906, 428910, C09J 702, B29C 4700, B32B 328
Patent
active
050809571
ABSTRACT:
Tape comprising a backing bearing on at least one major surface thereof a plurality of ribs disposed substantially longitudinally thereon, and further bearing on at least one major surface thereof a layer of adhesive. The ribs are joined to the backing such that there exists a notch-like separation between each end of the rib and the surface of the backing. No more than 50% of the cross-section of the ribs should project from the rib-bearing surface of the tape. It is preferred that the adhesive be a pressure-sensitive adhesive. The tape of this invention can be prepared by means of coextrusion techniques.
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European Search Report.
Leseman Ronald P.
Wood Thomas L.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Robinson Ellis P.
Watkins III William P.
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