Claims
- 1. A tinting composition comprising:
a) at least one colorant composition; and b) from 0.05 to 15% dry weight of at least one additive selected from the group consisting of associative thickeners and macromolecular organic compounds having a hydrophobic cavity, based on the weight of said at least one colorant composition.
- 2. The tinting composition according to claim 1 wherein said associative thickener is selected from the group consisting of nonionic hydrophobically modified ethylene oxide urethane block copolymers, hydrophobically modified alkali soluble polymers, hydrophobically-modified cellulosics, hydrophobically-modified polyacrylamides, and mixtures thereof.
- 3. The tinting composition according to claim 1 comprising from 0.05 to 15% dry weight of said one macromolecular organic compound having a hydrophobic cavity.
- 4. The tinting composition according to claim 3 wherein said associative thickener is selected from the group consisting of nonionic hydrophobically modified ethylene oxide urethane block copolymers, hydrophobically modified alkali soluble polymers, hydrophobically-modified cellulosics, hydrophobically-modified polyacrylamides, and mixtures thereof.
- 5. The tinting composition according to claim 1 comprising from 0.05 to 15% dry weight of said associative thickener.
- 6. The tinting composition according to claim 5 wherein said associative thickener is selected from the group consisting of nonionic hydrophobically modified ethylene oxide urethane block copolymers, hydrophobically modified alkali soluble polymers, hydrophobically-modified cellulosics, hydrophobically-modified polyacrylamides, and mixtures thereof.
- 7. The tinting composition according to claim 1, wherein the ratio of said macromolecular organic compound having a hydrophobic cavity to said associative thickener is in the range of 4:1 to 1:4, based on dry weights.
- 8. The tinting composition according to claim 7 wherein said associative thickener is selected from the group consisting of nonionic hydrophobically modified ethylene oxide urethane block copolymers, hydrophobically modified alkali soluble polymers, hydrophobically-modified cellulosics, hydrophobically-modified polyacrylamides, and mixtures thereof.
- 9. The tinting composition according to claim 1, wherein said additive comprises at least one highly shear thinning associative thickener, at least one moderately shear thinning associative thickener, and at least one macromolecular organic compound having a hydrophobic cavity.
- 10. The tinting composition according to claim 9, wherein said highly shear thinning associative thickener comprises a nonionic hydrophobically modified ethylene oxide urethane block copolymer, and wherein said moderately shear thinning associative thickener comprises a nonionic hydrophobically modified ethylene oxide urethane block copolymer.
- 11. The tinting composition of claim 10,
(a) wherein said highly shear thinning associative thickener is principally made of linear molecules that have hydrophilic middle segments and that have hydrophobes that are alkyl hydrocarbon end segments with 4 to 30 carbon atoms; (b) wherein said moderately shear thinning associative thickener is principally made of linear molecules that have hydrophilic middle segments and that have hydrophobes that are alkyl hydrocarbon end segments with 4 to 30 carbon atoms; (c) wherein the average number of carbon atoms in said hydrophobes of said molecules of said highly shear thinning associative thickener is at least 2 more than the average number of carbon atoms in said hydrophobes of said molecules of said moderately shear thinning associative thickener; and (d) wherein the molecular weight of said hydrophilic middle segment of said moderately shear thinning associative thickener is at most 80% of the molecular weight of said hydrophilic middle segment of said highly shear thinning associative thickener.
- 12. The tinting composition according to claim 9, wherein said highly shear thinning associative thickener comprises a hydrophobically modified alkali soluble polymer, and wherein said moderately shear thinning associative thickener comprises a nonionic hydrophobically modified ethylene oxide urethane block copolymer.
- 13. A method of improving the viscosity stability of a coating composition upon the addition of a colorant component, comprising the steps of:
a) providing a base paint; and b) adding to said base paint, a tinting composition comprising:
i) at least one colorant composition; and ii) from 0.05 to 15% dry weight of at least one additive selected from the group consisting of associative thickeners and macromolecular organic compounds having a hydrophobic cavity, based on the weight of said at least one colorant composition.
- 14. The method of claim 13 wherein said base paint comprises at least one associative thickener selected from the group consisting of nonionic hydrophobically modified ethylene oxide urethane block copolymers, hydrophobically modified alkali soluble polymers, hydrophobically-modified cellulosics, hydrophobically-modified polyacrylamides, and mixtures thereof.
- 15. The method of claim 13 wherein said tinting composition comprises from 0.05 to 15% dry weight of said macromolecular organic compound having a hydrophobic cavity.
- 16. The method of claim 15 wherein said base paint comprises at least one associative thickener selected from the group consisting of nonionic hydrophobically modified ethylene oxide urethane block copolymers, hydrophobically modified alkali soluble polymers, hydrophobically-modified cellulosics, hydrophobically-modified polyacrylamides, and mixtures thereof.
- 17. The method of claim 13 wherein said tinting composition comprises from 0.05 to 15% dry weight of said associative thickener.
- 18. The method of claim 17 wherein said base paint comprises at least one associative thickener selected from the group consisting of nonionic hydrophobically modified ethylene oxide urethane block copolymers, hydrophobically modified alkali soluble polymers, hydrophobically-modified cellulosics, hydrophobically-modified polyacrylamides, and mixtures thereof.
- 19. The method of claim 13 wherein said tinting composition has a ratio of said macromolecular organic compound having a hydrophobic cavity to said associative thickener is in the range of 4:1 to 1:4, based on dry weights.
- 20. The method of claim 19 wherein said base paint comprises at least one associative thickener selected from the group consisting of nonionic hydrophobically modified ethylene oxide urethane block copolymers, hydrophobically modified alkali soluble polymers, hydrophobically-modified cellulosics, hydrophobically-modified polyacrylamides, and mixtures thereof.
- 21. The method of claim 13, wherein said additive comprises at least one highly shear thinning associative thickener, at least one moderately shear thinning associative thickener, and at least one macromolecular organic compound having a hydrophobic cavity.
Parent Case Info
[0001] This application is a continuation-in-part of U.S. application Ser. No. 10/025,706, which claims priority from U.S. Provisional Application Ser. No. 60/271,997.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60271997 |
Feb 2001 |
US |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
10025706 |
Dec 2001 |
US |
Child |
10407959 |
Apr 2003 |
US |