Stock material or miscellaneous articles – Structurally defined web or sheet – Continuous and nonuniform or irregular surface on layer or...
Patent
1994-10-25
1995-06-06
Watkins, III, William P.
Stock material or miscellaneous articles
Structurally defined web or sheet
Continuous and nonuniform or irregular surface on layer or...
4284247, 428522, 428215, 428213, 428220, 428338, 428149, 428141, 428323, 428325, 359538, 359539, 359540, 359536, 359537, 404 12, 404 14, E01F 908
Patent
active
054221625
ABSTRACT:
A conformable marking tape having improved mechanical properties comprises a support base and a top-coat layer, the support base comprising a highly saturated acrylonitrile elastomer grafted with a zinc salt of methacrylic acid. The top-coat layer preferably comprises a polyurethane resin having about 50 to about 65% by weight of rigid segments and about 35 to about 50% by weight of flexible segments. The rigid segments are derived from diisocyanates and aliphatic and/or cycloaliphatic chain extenders, and the flexible segments are derived from polymeric compounds having at least two active hydrogen atoms and having weight average molecular weights ranging from about 400 to about 4000.
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Derwent Publications Ltd., London, GB; AN 89-371836 & DE A 3 918 929 (Nippon Zeon KK) 14 Dec. 1989.
Cazzaniga Luigi
Passarino Sergio
Griswold Gary L.
Jordan Robert H.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Watkins III William P.
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