C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/06 (2006.01) B05D 1/36 (2006.01) B05D 5/06 (2006.01) B05D 7/00 (2006.01) C08G 18/08 (2006.01) C08G 18/40 (2006.01) C08G 18/42 (2006.01) C08G 59/00 (2006.01) E01F 9/04 (2006.01)
Patent
CA 2106204
ABSTRACT OF THE DISCLOSURE An article is provided consisting of an epoxy base coat and a urethane top coat which is useful in pavement marking applications. The epoxy composition is a two-part, 100 percent volatile free system containing one or more hardeners which are reacted with an epoxy component such as the glycidyl ether of bisphenol-A. The urethane composition is also a two-part, 100 percent volatile free system containing a polyisocyanate component and an intermediate component comprising a polylactone polyol, and/or a polyether poloyl, a polyester polyol, or a polyether-ester polyol, an aliphatic polyol chain extender and a moisture scavenger. The two-part epoxy composition can be applied to a road with the urethane composition coated thereof whereupon it serves as a lane marker. The urethane composition exhibits weatherability and abrasion-resistance and has non-yellowing characteristics. Various reflective compounds such as glass beads can be applied and partially embedded therein to provide night and wet night reflectivity.
Naik Hemant A.
Pandit Shirish A.
Pant Bipin C.
Sondhe Ratanjit S.
Ridout & Maybee Llp
U.s. Laboratories Inc.
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