Water-based asphalt coating composition
First Claim
1. A multipart system for preparing a coating composition in situ, the system comprising:
- a) an emulsion comprising asphalt, water, and a dispersion system; and
b) a liquid polymer composition that lacks water;
wherein the asphalt emulsion and the liquid polymer composition are present in the multipart system at a ratio of 3;
1 or greater.
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Accused Products
Abstract
The present invention relates to multi-part coating compositions that comprise a first part which is an asphalt emulsion comprising water, asphalt, and a dispersion system and a second part which is a liquid polymer composition that lacks water. The asphalt emulsion and liquid polymer composition are combined in situ to provide a coating that has fast dry characteristics, and that quickly develops good water-resistance. Such compositions are useful as coatings on metal, wood, and other surfaces, where fast drying characteristics are important. Such compositions are particularly useful as coatings on substrates where early water-resistance of the coating is important, such as those surfaces which are routinely exposed to the outdoors.
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Citations
22 Claims
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1. A multipart system for preparing a coating composition in situ, the system comprising:
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a) an emulsion comprising asphalt, water, and a dispersion system; and b) a liquid polymer composition that lacks water; wherein the asphalt emulsion and the liquid polymer composition are present in the multipart system at a ratio of 3;
1 or greater.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of coating a substrate comprising:
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a) preparing a coating composition in situ, wherein the coating composition is prepared by combining an emulsion comprising asphalt, water, and a dispersion system with a liquid polymer composition, wherein said liquid polymer composition lacks water and comprises a polyurethane, an acrylic polymer, styrene butadiene, a silicone polymer, a sytrene-containing block polymer, or any combination of said polymers, and, wherein the asphalt emulsion and liquid polymer composition are combined at a ratio of 3;
1 or greater; andb) applying the coating composition to the substrate. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A method of increasing the cure-through rate of a coating comprising an asphalt emulsion, comprising:
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(a) providing an asphalt emulsion comprising asphalt, water, and a dispersion system, (b) combining the asphalt emulsion of step a with a liquid polymer composition that lacks water to provide a coating composition, wherein the ratio of asphalt emulsion to liquid polymer composition is 3;
1 or greater,(c) applying the coating composition of step b to a substrate; wherein the cure-through rate of a coating formed from the coating composition of step b is faster than the cure through rate of a coating formed from the asphalt emulsion alone.
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22. A method of preparing a weather-resistant, single-layer coating, having a thickness of 250 millimeters or greater, comprising
a) combining in situ an asphalt emulsion comprising water, asphalt, and a dispersion system with a non-emulsion, liquid polymer composition to provide a coating composition, wherein said non-emulsion liquid polymer composition lacks water and comprises a polyurethane, an acrylic polymer, styrene butadiene, a silicone polymer, a sytrene block polymer, or any combination of said polymers, and wherein the ratio of asphalt emulsion to the non-emulsion polyurethane polymer composition is from 17: - 1 to 3;
1; andb) applying at least one layer of the coating composition to a substrate, wherein the at least one layer has a thick of 250 millimeters or greater.
- 1 to 3;
Specification