Method for producing fast drying multi-component waterborne coating compositions

• US 6,475,556 B1
• Filed: 04/13/2000
• Issued: 11/05/2002
• Est. Priority Date: 11/25/1999
• Status: Expired due to Term

• Current Assignee: Rohm and Haas Company (Dow, Inc.)
• Original Assignee: Rohm and Haas Company (Dow, Inc.)
• Inventors: Schall, Donald Craig, Hermes, Ann Robertson, Sanfilippo, Angelo, Sobczak, Jeffrey Joseph
• Primary Examiner(s): Barr, Michael
• Assistant Examiner(s): Blanton, Rebecca A.
• Application Number:
  US09/548,591
• Time in Patent Office: 936 Days
• Field of Search: 427/136, 427/137, 427/407.1, 404/94
• US Class Current: 427/137
• CPC Class Codes: B05D 1/36 Successively applying liquids or other fluent materials, e.g. without intermediate treatment
• CPC Class Codes: B05D 3/10 by other chemical means

Abstract

The invention relates to a method for producing a fast drying two or multi-component waterborne coating on a surface of a substrate. The method comprises applying a first component comprising a binder and a second component, being separate from the first component prior to application, comprising an absorber, and compositions and/or formulations prepared therefrom.

Claims

1. A method for preparing a fast drying multi-component waterborne coating on a surface of a substrate, the method comprising the sequential steps of:

a) applying component A consisting essentially of at least one water insoluble absorber to the surface of the substrate;

b) applying component B consisting essentially of a fast-drying binder composition to the surface of the substrate to which the water insoluble absorber has been applied; and

c) allowing the multi-component waterbome coating to dry,

wherein said absorber is selected from the group consisting of organic super absorbent polymers, ion-exchange resins, hollow sphere polymers, molecular sieves, talcs, inorganic absorbers, porous carbonaceous materials, non-porous carbonaceous materials, and mixtures thereof.

2. The method of claim 1, further comprising the additional sequential step of applying component C comprising a fast-drying binder composition to the surface of the substrate before applying said component A water insoluble absorber;

wherein said component C is different from said component B.

3. A method according to claim 1,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i) anionically stabilized polymer having Tg of greater than −

10°

C.;

(ii) polyamine functional polymer; and

(iii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

4. A method according to claim 1,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i) a polyamine functional polymer that is a latex polymer having pendant amine-functional groups, wherein such latex polymer has a Tg equal to or greater than −

10°

C.; and

(ii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

5. A method according to claim 1,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i) a polyamine functional polymer that is a latex polymer having pendant amine-functional groups and pendant acid-functional groups,

wherein the ratio of amine-functional groups to acid-functional groups is greater than 3 to 1, and

wherein said latex polymer has a Tg equal to or greater than −

10°

C.; and

(ii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

6. A method according to claim 1,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i) a polyamine functional polymer that is a latex polymer having pendant amine-functional groups,

wherein said latex polymer having pendant amine-functional groups has a Tg equal to or greater than −

10°

C.;

(ii) a latex polymer having pendant acid-functional groups,

wherein said latex polymer having acid-functional groups has a Tg equal to or greater than −

10°

C.; and

(iii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

7. A method according to claim 1,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i) an aqueous emulsion containing a polyamine functional polymer, having a Tg equal to or greater than −

10°

C., formed from polymerizable monomers comprising;

(a) alkyl esters of acrylic or methacrylic acid having an alkyl ester portion containing between 1 to 18 carbon atoms;

(b) from 0.1 to 5% by weight, based on said acrylic film forming polymer, of a at least one secondary or tertiary aminoacrylate monomer, or secondary or tertiary aminomethacrylate monomer; and

(c) from 0.1 to 5% by weight, based on said acrylic film forming of crosslinkable monomer selected from the group consisting of acrylamide, methacrylamide, and N-alkylol acrylamide; and

said polyamine functional polymer having less than 3 percent by weight, based on said film forming polymer of hydrophilic monomer incorporated therein; and

(ii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

8. A method according to claim 1,

wherein said fast drying binder composition comprises:

(i);

an aqueous dispersion comprising;

polymer having pendant strong cationic groups,

wherein said polymer having pendant strong cationic groups has a Tg equal to or greater than −

10°

C.; and

(ii);

an aqueous dispersion comprising;

polymer having pendant weak acid groups,

wherein said polymer having pendant weak acid groups has a Tg equal to or greater than −

10°

C.; and

wherein aqueous dispersion (i) and aqueous dispersion (ii) may be applied to said surface of a substrate in any order as part of said fast drying binder composition.

9. A method according to claim 1,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i);

polymer having both pendant strong cationic groups and pendant weak acid groups,

wherein said polymer has a Tg equal to or greater than −

10°

C.; and

wherein it is a necessary condition that said surface of a substrate is, or is treated to be, sufficiently basic that said aqueous dispersion sets in less time than the time required for a latex that only contains pendant strong cation groups, or pendant weak acid groups, to set.

10. A method according to claim 2,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i) anionically stabilized polymer having Tg of greater than −

10°

C.;

(ii) polyamine functional polymer; and

(iii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

11. A method according to claim 2,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i) a polyamine functional polymer that is a latex polymer having pendant amine-functional groups, wherein such latex polymer has a Tg equal to or greater than −

10°

C.; and

(ii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

12. A method according to claim 2,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i) a polyamine functional polymer that is a latex polymer having pendant amine-functional groups and pendant acid-functional groups,

wherein the ratio of amine-functional groups to acid-functional groups is greater than 3 to 1, and

wherein said latex polymer has a Tg equal to or greater than −

10°

C.; and

(ii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

13. A method according to claim 2,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i) a polyamine functional polymer that is a latex polymer having pendant amine-functional groups,

wherein said latex polymer having pendant amine-functional groups has a Tg equal to or greater than −

10°

C.;

(ii) a latex polymer having pendant acid-functional groups,

wherein said latex polymer having acid-functional groups has a Tg equal to or greater than −

10°

C.; and

(iii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

14. A method according to claim 2,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i) an aqueous emulsion containing a polyamine functional polymer, having a Tg equal to or greater than −

10°

C., formed from polymerizable monomers comprising;

(a) alkyl esters of acrylic or methacrylic acid having an alkyl ester portion containing between 1 to 18 carbon atoms;

(b) from 0.1 to 5% by weight, based on said acrylic film forming polymer, of a at least one secondary or tertiary aminoacrylate monomer, or secondary or tertiary aminomethacrylate monomer; and

(c) from 0.1 to 5% by weight, based on said acrylic film forming of crosslinkable monomer selected from the group consisting of acrylamide, methacrylamide, and N-alkylol acrylamide; and

said polyamine functional polymer having less than 3 percent by weight, based on said film forming polymer of hydrophilic monomer incorporated therein; and

(ii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

15. A method according to claim 2,

wherein said fast drying binder composition comprises:

(i);

an aqueous dispersion comprising;

polymer having pendant strong cationic groups,

wherein said polymer having pendant strong cationic groups has a Tg equal to or greater than −

10°

C.; and

(ii);

an aqueous dispersion comprising;

polymer having pendant weak acid groups,

wherein said polymer having pendant weak acid groups has a Tg equal to or greater than −

10°

C.; and

wherein aqueous dispersion (i) and aqueous dispersion (ii) may be applied to said surface of a substrate in any order as part of said fast drying binder composition.

16. A method according to claim 2,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i);

polymer having both pendant strong cationic groups and pendant weak acid groups,

wherein said polymer has a Tg equal to or greater than −

10°

C.; and

wherein it is a necessary condition that said surface of a substrate is, or is treated to be, sufficiently basic that said aqueous dispersion sets in less time than the time required for a latex that only contains pendant strong cation groups, or pendant weak acid groups, to set.

33. The method of any one of claims 1 through 16, wherein said component A consists essentially of at least one water insoluble absorber and glass beads.

34. The method of any one of claims 1 through 16, wherein said component B consists essentially of a fast-drying binder and glass beads.

35. The method of any one of claims 2 or 10 through 16, wherein said component C further comprises glass beads.

36. The method of any one of claims 1, or 3 through 9, further comprising the step of applying component D comprising glass beads before applying the first applied of said components A and B.

37. The method of any one of claims 2 or 10 through 16, further comprising the step of applying component D comprising glass beads before applying the first applied of said components A, B, and C.

38. The method of any one of claims 1, 3 through 9, further comprising the step of applying said component D comprising glass beads between of any two steps of applying said components A and B.

39. The method of any one of claims 2 or 10 through 16, further comprising the step of applying said component D comprising glass beads between of any two steps of applying said components A, B, and C.

40. The method of any one of claims 1, or 3 through 9, further comprising the step of applying component D comprising glass beads after applying the last applied of said components A and B.

41. The method of any one of claims 2 or 10 through 16, further comprising the step of applying component D comprising glass beads after applying the last applied of said components A, B, and C.

42. The method of any one of claims 1 through 32, wherein said ion exchange resin comprises acid functionality selected from the group consisting of sulfonate, carboxylate, phosphonate, aminophosphonate, their salts, and mixtures thereof.

43. The method of any one of claims 1 through 32, wherein the ion exchange resin is transparent or translucent.

44. The method of any one of claims 1 through 16, wherein said organic super absorbent polymer comprises a polymer prepared from at least one monomer selected from the group consisting of acrylic monomer, methacrylic monomer, and mixtures thereof.

45. The method of any one of claims 1 through 32, further comprising the step of applying an aqueous solution which comprises a substance selected from the group consisting of an acid, a water soluble salt and mixtures thereof, wherein the acid is selected from the group consisting of acetic acid, citric acid and mixtures thereof.

46. The method of any one of claims 1 through 16, wherein the multi-component waterborne coating is a multi-component waterborne road marking paint.

47. A composite formed by the method of any one of claims 1 through 16.

17. A method for preparing a fast drying multi-component waterborne coating on a surface of a substrate, the method comprising the sequential steps of:

a) applying component C comprising a fast-drying binder composition to the surface of the substrate;

b) applying component A consisting essentially of at least one water insoluble absorber and component B consisting essentially of a fast-drying binder composition simultaneously, or nearly simultaneously, to the surface of the substrate to which said component C has already been applied; and

c) allowing the multi-component waterborne coating to dry;

wherein said component B is different from said component C; and

wherein said absorber is selected from the group consisting of organic super absorbent polymers, ion-exchange resins, hollow sphere polymers, molecular sieves, talcs, inorganic absorbers, porous carbonaceous materials, non-porous carbonaceous materials, and mixtures thereof.

18. A method according to claim 17,

wherein said fast drying binder composition comprises: an aqueous dispersion comprising;

(i) anionically stabilized polymer having Tg of greater than −

10°

C.;

(ii) polyamine functional polymer; and

(iii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

19. A method according to claim 17,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i) a polyamine functional polymer that is a latex polymer having pendant amine-functional groups, wherein such latex polymer has a Tg equal to or greater than −

10°

C.; and

(ii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

20. A method according to claim 17,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i) a polyamine functional polymer that is a latex polymer having pendant amine-functional groups and pendant acid-functional groups,

wherein the ratio of amine-functional groups to acid-functional groups is greater than 3 to 1, and

wherein said latex polymer has a Tg equal to or greater than −

10°

C.; and

(ii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

21. A method according to claim 17,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i) a polyamine functional polymer that is a latex polymer having pendant amine-functional groups,

wherein said latex polymer having pendant amine-functional groups has a Tg equal to or greater than −

10°

C.;

(ii) a latex polymer having pendant acid-functional groups,

wherein said latex polymer having acid-functional groups has a Tg equal to or greater than −

10°

C.; and

(iii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

22. A method according to claim 17,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i) an aqueous emulsion containing a polyamine functional polymer, having a Tg equal to or greater than −

10°

C., formed from polymerizable monomers comprising;

(a) alkyl esters of acrylic or methacrylic acid having an alkyl ester portion containing between 1 to 18 carbon atoms;

(b) from 0.1 to 5% by weight, based on said acrylic film forming polymer, of a at least one secondary or tertiary aminoacrylate monomer, or secondary or tertiary aminomethacrylate monomer; and

(c) from 0.1 to 5% by weight, based on said acrylic film forming of crosslinkable monomer selected from the group consisting of acrylamide, methacrylamide, and N-alkylol acrylamide; and

said polyamine functional polymer having less than 3 percent by weight, based on said film forming polymer of hydrophilic monomer incorporated therein; and

(ii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

23. A method according to claim 17,

wherein said fast drying binder composition comprises:

(i);

an aqueous dispersion comprising;

polymer having pendant strong cationic groups,

wherein said polymer having pendant strong cationic groups has a Tg equal to or greater than −

10°

C.; and

(ii);

an aqueous dispersion comprising;

polymer having pendant weak acid groups,

wherein said polymer having pendant weak acid groups has a Tg equal to or greater than −

10°

C.; and

wherein aqueous dispersion (i) and aqueous dispersion (ii) may be applied to said surface of a substrate in any order as part of said fast drying binder composition.

24. A method according to claim 17,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i);

polymer having both pendant strong cationic groups and pendant weak acid groups,

wherein said polymer has a Tg equal to or greater than −

10°

C.; and

wherein it is a necessary condition that said surface of a substrate is, or is treated to be, sufficiently basic that said aqueous dispersion sets in less time than the time required for a latex that only contains pendant strong cation groups, or pendant weak acid groups, to set.

25. A method for preparing a fast drying multi-component waterborne coating on a surface of a substrate, the method comprising the sequential steps of:

a) applying component B consisting essentially of a fast-drying binder composition and glass beads to the surface of the substrate;

b) applying component A consisting essentially of at least one water insoluble absorber to the surface of the substrate to which component B has been applied; and

c) allowing the multi-component waterborne coating to dry,

wherein said absorber is selected from the group consisting of organic super absorbent polymers, ion-exchange resins, hollow sphere polymers, molecular sieves, talcs, inorganic absorbers, porous carbonaceous materials, non-porous carbonaceous materials, and mixtures thereof.

26. A method according to claim 25,

wherein said fast drying binder composition comprises: an aqueous dispersion comprising;

(i) anionically stabilized polymer having Tg of greater than −

10°

C.;

(ii) polyamine functional polymer; and

(iii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

27. A method according to claim 25,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i) a polyamine functional polymer that is a latex polymer having pendant amine-functional groups, wherein such latex polymer has a Tg equal to or greater than −

10°

C.; and

(ii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

28. A method according to claim 25,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i) a polyamine functional polymer that is a latex polymer having pendant amine-functional groups and pendant acid-functional groups,

wherein the ratio of amine-functional groups to acid-functional groups is greater than 3 to 1, and

wherein said latex polymer has a Tg equal to or greater than −

10°

C.; and

(ii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

29. A method according to claim 25,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i) a polyamine functional polymer that is a latex polymer having pendant amine-functional groups,

wherein said latex polymer having pendant amine-functional groups has a Tg equal to or greater than −

10°

C.;

(ii) a latex polymer having pendant acid-functional groups,

wherein said latex polymer having acid-functional groups has a Tg equal to or greater than −

10°

C.; and

(iii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

30. A method according to claim 25,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i) an aqueous emulsion containing a polyamine functional polymer, having a Tg equal to or greater than −

10°

C., formed from polymerizable monomers comprising;

(a) alkyl esters of acrylic or methacrylic acid having an alkyl ester portion containing between 1 to 18 carbon atoms;

(b) from 0.1 to 5% by weight, based on said acrylic film forming polymer, of a at least one secondary or tertiary aminoacrylate monomer, or secondary or tertiary aminomethacrylate monomer; and

(c) from 0.1 to 5% by weight, based on said acrylic film forming of crosslinkable monomer selected from the group consisting of acrylamide, methacrylamide, and N-alkylol acrylamide; and

said polyamine functional polymer having less than 3 percent by weight, based on said film forming polymer of hydrophilic monomer incorporated therein; and

(ii) volatile base in an amount sufficient to deprotonate the conjugate acid of said polyamine functional polymer.

31. A method according to claim 25,

wherein said fast drying binder composition comprises:

(i);

an aqueous dispersion comprising;

polymer having pendant strong cationic groups,

wherein said polymer having pendant strong cationic groups has a Tg equal to or greater than −

10°

C.; and

(ii);

an aqueous dispersion comprising;

polymer having pendant weak acid groups,

wherein said polymer having pendant weak acid groups has a Tg equal to or greater than −

10°

C.; and

wherein aqueous dispersion (i) and aqueous dispersion (ii) may be applied to said surface of a substrate in any order as part of said fast drying binder composition.

32. A method according to claim 25,

wherein said fast drying binder composition comprises:

an aqueous dispersion comprising;

(i);

polymer having both pendant strong cationic groups and pendant weak acid groups,

wherein said polymer has a Tg equal to or greater than −

10°

C.; and

wherein it is a necessary condition that said surface of a substrate is, or is treated to be, sufficiently basic that said aqueous dispersion sets in less time than the time required for a latex that only contains pendant strong cation groups, or pendant weak acid groups, to set.