Title:
PAVEMENT MARKING
Document Type and Number:
WIPO Patent Application WO/1993/011303
Kind Code:
A1
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.
Inventors:
PASSARINO SERGIO (IT)
CAZZANIGA LUIGI (IT)
CAZZANIGA LUIGI (IT)
Application Number:
PCT/US1992/009985
Publication Date:
June 10, 1993
Filing Date:
November 18, 1992
Export Citation:
Assignee:
MINNESOTA MINING & MFG (US)
International Classes:
C09D175/00; E01F9/04; C09D175/04; E01F9/08; (IPC1-7): E01F9/04; E01F9/08
Foreign References:
| US4117192A | 1978-09-26 | |||
| US4248932A | 1981-02-03 | |||
| US4990024A | 1991-02-05 |
Other References:
DATABASE WPIL Week 5189, Derwent Publications Ltd., London, GB; AN 89-371836
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