C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 7/12 (2006.01) C09D 5/00 (2006.01) C09D 5/02 (2006.01) C09D 7/02 (2006.01) E01F 9/04 (2006.01) E01F 9/08 (2006.01)
Patent
CA 2179576
A water-borne road marking paint composition which includes a chelating agent capable of chelating iron ions to form a substantially colorlesscomplex is provided. A road marking produced from the traffic paint of the present invention substantially reduces or prevents yellowing of white road marking from iron and iron compound debris strewn on the road surfaces. A method of reducing or preventing yellowing of a newly-applied road marking on a road surface of a water-borne road marking paint is also disclosed. The method comprises incorporating in the water-borne road marking paint a chelating agent capable of chelating iron ions to form a substantially colorlesscomplex. Further reduction of yellowing of the road marking is observed when a pigment dispersant is incorporated in the water-borne road marking paint.
Jilek Josef Hans
Sanfilippo Angelo
Schall Donald Craig
Trapani Andrew Paul
Gowling Lafleur Henderson Llp
Jilek Josef Hans
Rohm And Haas Company
Sanfilippo Angelo
Schall Donald Craig
LandOfFree
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