Skid-resistant pavement markings

Details Skid-resistant pavement markings Skid-resistant pavement markings

1988-09-07

1990-06-26

Thomas, Alexander S.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428149, 428150, 428212, B32B 516

Patent

active

049371274

ABSTRACT:
A skid-resistant pavement marking sheet including a top surface and a plurality of skid-resistant ceramic spheroids embedded in and protruding from the surface. The ceramic spheroids are fired from a raw material mixture including 10-97 wt. % mineral particulates, 3-90 wt. % alumina, and at least 1 wt. % binder, at a temperature of about 1300.degree. C., have an outer surface rich in alumina concentration relative to the center of the spheroid, and are resistant to crushing and fracturing.

REFERENCES:
patent: 4020211 (1977-04-01), Eigenmann
patent: 4117192 (1978-09-01), Jorgensen
patent: 4248932 (1981-02-01), Tung et al.
patent: 4490432 (1984-12-01), Jordan
patent: 4564556 (1986-01-01), Lange
patent: 4680230 (1987-07-01), Gibb et al.

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