B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
94/13
B32B 5/16 (2006.01) C04B 26/16 (2006.01) C04B 41/45 (2006.01) C04B 41/81 (2006.01) E01C 5/00 (2006.01) E01F 9/04 (2006.01)
Patent
CA 1315586
ABSTRACT OF THE DISCLOSURE 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°C, have an outer surface rich in alumina concentration relative to the center of the spheroid, and are resistant to crushing and fracturing.
610401
Haenggi Robert A.
Laird James A.
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
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