Claims
- 1. An aqueous coating composition comprising a plurality of comb copolymer particles:
wherein said comb copolymer particles comprise a comb copolymer; wherein said comb copolymer comprises:
a) from 80 to 98 weight % of a backbone having a glass transition temperature in the range of from −30° C. to 10° C.; and b) from 2 to 20 weight % of at least one graft segment having a glass transition temperature of at least 40° C. attached thereto.
- 2. The aqueous coating composition according to claim 1 wherein said comb copolymer comprises:
a) from 85 to 95 weight % of said backbone; and b) from 5 to 15 weight % of said at least one graft segment.
- 3. The aqueous coating composition according to claim 1 wherein said backbone has a glass transition temperature in the range of from −20° C. to 10° C.
- 4. The aqueous coating composition according to claim 1 wherein said comb copolymer has a weight average molecular weight in the range of from 50,000 to 2,000,000.
- 5. The aqueous coating composition according to claim 1 comprising less than 5 weight % volatile organic compounds, based on weight of said aqueous coating composition.
- 6. A method of preparing a dry coating comprising the steps of:
a) providing an aqueous coating composition comprising a plurality of comb copolymer particles,
wherein said comb copolymer particles comprise a comb copolymer; wherein said comb copolymer comprises:
i) from 80 to 98 weight % of a backbone having a glass transition temperature in the range of from −30° C. to 10° C.; and ii) from 2 to 20 weight % of at least one graft segment having a glass transition temperature of at least 40° C. attached thereto; b) apply said aqueous coating composition to a substrate; and c) drying or allowing to dry said coating composition applied to said substrate to provide said dry coating, wherein said dry coating has a 20° gloss of at least 30.
- 7. The method according to claim 6 wherein said comb copolymer comprises:
a) from 85 to 95 weight % of said backbone; and b) from 5 to 15 weight % of said at least one graft segment.
- 8. The method according to claim 6 wherein said backbone has a glass transition temperature in the range of from −20° C. to 10° C.
- 9. The method according to claim 6 wherein said comb copolymer has a weight average molecular weight in the range of from 50,000 to 2,000,000.
- 10. The method according to claim 6 comprising less than 5 weight % volatile organic compounds, based on weight of said aqueous coating composition.
Parent Case Info
[0001] This application is a continuation-in-part of Ser. No. 09/951,639, filed Sep. 13, 2001, which claims priority to provisional patent application Serial No. 60/232,414, filed Sep. 14, 2000.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60232414 |
Sep 2000 |
US |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09951639 |
Sep 2001 |
US |
Child |
10392686 |
Mar 2003 |
US |