High-durability pavement marking sheet material

Details High-durability pavement marking sheet material High-durability pavement marking sheet material

1985-01-04

1990-05-01

Lesmes, George F.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

404 12, 428216, 428519, 428520, 428913, B32B 2502, B32B 702, E01F 904

Patent

active

049217542

ABSTRACT:
A pavement marking sheet material of an improved durability comprises a laminate of a base layer containing unvulcanized synthetic rubber as a main ingredient and a colored layer of unvulcanized synthetic rubber containing a coloring agent and glass microspheres dispersed over the suface of the colored layer. The lower portions of the microspheres are embedded in the base layer and the remaining surfaces of the microspheres and the surface of the laminate are covered integrally with a surface layer of a thin film consisting of a transparent and colorless synthetic resin. The glass microspheres are prevented from coming off by the cooperation between the three layers and wear of the sheet itself is substantially reduced.

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patent: 4388359 (1983-06-01), Ethen et al.
patent: 4876141 (1989-10-01), Kobayashi et al.

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