Double layer pavement marking sheet material

Details Double layer pavement marking sheet material Double layer pavement marking sheet material

1988-07-08

1989-10-24

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

404 14, 428325, 428343, 428354, B32B 702, B32B 516

Patent

active

048761419

ABSTRACT:
A double layer pavement marking sheet material comprises a base sheet made of rubber, synthetic resin or the like in which a multiplicity of glass microspheres are embedded. The base sheet comprises an upper layer in which the glass microspheres are embedded in such a manner that a multiplicity thereof are partially exposed from the surface of the base sheet and a lower layer having hardness within a range of 30.degree.-75.degree. and restoration rate of 50% or less. This double layer pavement marking sheet material has such an excellent conformability to the pavement surface that the sheet material is not separated once it has been adhered to the pavement surface.

REFERENCES:
patent: 4248932 (1981-02-01), Tung et al.
patent: 4751140 (1988-06-01), Ishihara

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