Method of producing wear resistant traffic markings
First Claim
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1. A method for producing a wear resistant traffic marking on a road surface comprising the steps of:
- a) applying on said road surface a layer of a traffic paint composition comprising;
copolymer particles dispersed in an aqueous evaporable carrier and an aminosilane bearing an amine moiety, wherein said copolymer particles bear pendant enamine moieties resulting from the reaction of a pendant acetoacetyl moieties with ammonia or amine;
said copolymer particles having a glass transition temperature in the range varying from −
30°
C. to 60°
C.; and
wherein the level of said aminosilane is in the range varying from 0.02 to less than 0.1 moles said amine moiety to one mole of said pendant acetoacetyl moieties; and
b) evaporating said aqueous evaporable carrier from said layer to form said wear resistant traffic marking on said road surface.
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Abstract
A method is provided for producing wear resistant traffic markings. The method includes the application of a traffic paint composition containing select copolymer particles bearing acetoacetyl moieties and aminosilane. Also provided is a traffic marking prepared by the method of the present invention. The method allows the preparation of wear resistant traffic markings with low levels of aminosilane relative to the level of the acetoacetyl moieties.
43 Citations
10 Claims
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1. A method for producing a wear resistant traffic marking on a road surface comprising the steps of:
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a) applying on said road surface a layer of a traffic paint composition comprising;
copolymer particles dispersed in an aqueous evaporable carrier and an aminosilane bearing an amine moiety, wherein said copolymer particles bear pendant enamine moieties resulting from the reaction of a pendant acetoacetyl moieties with ammonia or amine;
said copolymer particles having a glass transition temperature in the range varying from −
30°
C. to 60°
C.; and
wherein the level of said aminosilane is in the range varying from 0.02 to less than 0.1 moles said amine moiety to one mole of said pendant acetoacetyl moieties; and
b) evaporating said aqueous evaporable carrier from said layer to form said wear resistant traffic marking on said road surface. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A traffic marking on a road surface prepared according to a method for producing a wear resistant traffic marking on a road surface;
- said method comprising the steps of;
a) applying on said road surface a layer of a traffic paint composition comprising;
copolymer particles dispersed in an aqueous evaporable carrier and an aminosilane bearing an amine moiety, wherein said copolymer particles bear pendant enamine moieties resulting from the reaction of a pendant acetoacetyl moieties with ammonia or amine;
said copolymer particles having a glass transition temperature in the range varying from −
30°
C. to 60°
C.; and
wherein the level of said aminosilane is in the range varying from 0.02 to less than 0.1 moles said amine moiety to one mole of said pendant acetoacetyl moieties; and
b) evaporating said aqueous evaporable carrier from said layer to form said wear resistant traffic marking on said road surface. - View Dependent Claims (8, 9, 10)
- said method comprising the steps of;
Specification