Coating compositions containing low VOC compounds

• US 6,762,230 B2
• Filed: 02/22/2002
• Issued: 07/13/2004
• Est. Priority Date: 02/22/2001
• Status: Expired due to Term

• Current Assignee: Swimc, LLC (The Sherwin-Williams Company)
• Original Assignee: Valspar Sourcing, Inc. (Sherwin-Williams Company)
• Inventors: Brandenburger, Larry B., Sicklesteel, Bruce, Owens, Mary Jane
• Primary Examiner(s): NILAND, PATRICK DENNIS
• Application Number:
  US10/081,351
• Publication Number:
  US 20020156163A1
• Time in Patent Office: 872 Days
• Field of Search: 524/284, 524/300, 524/306, 524/308, 524/310, 524/311, 524/320
• US Class Current: 524/284
• CPC Class Codes: C09D 5/024 characterised by the additives

Abstract

Coating compositions containing coalescents and a latex polymer, wherein the coalescent has a volatile organic content of less than about 50% and is dispersible in the coating composition.

Claims

1. A coating composition, comprising:

a latex polymer; and

a coalescent having the formula;

2. The coating composition of claim 1 wherein the coalescent does not phase separate from the coating composition upon standing at 49°

C. for four weeks.

3. The coating composition of claim 1 wherein the coalescent does not include aliphatic unsaturated carbon-carbon bonds when r is zero.

4. The coating composition of claim 1 wherein the coalescent does not include aliphatic unsaturated carbon-carbon bonds.

5. The coating composition of claim 1, wherein r is one.

6. The coating composition of claim 1, wherein the coalescent facilitates the formation of polymer films of the latex polymer at a temperature of less than about 25°

C.

7. The coating composition of claim 1, wherein the coalescent facilitates the formation of polymer films of the latex polymer at a temperature of about 4°

C. to about 10°

C.

8. The coating composition of claim 1, wherein the coalescent facilitates the formation of polymer films of the latex polymer at a temperature of about 4°

C. to about 5°

C.

9. The coating composition of claim 1, wherein the coalescent has a volatile organic content of less than about 30%.

10. The coating composition of claim 1, wherein the coalescent has a volatile organic content of less than about 20%.

11. The coating composition of claim 1, wherein the coalescent has a volatile organic content of less than about 15%.

12. The coating composition of claim 1, wherein the coalescent has a number average molecular weight of no greater than about 750.

13. The coating composition of claim 1, wherein the coalescent has a number average molecular weight of less than about 500.

14. The coating composition of claim 1, which is in the form of a paint.

15. The coating composition of claim 1, wherein n is 1 to 5.

16. The coating composition of claim 1, wherein n is 1 to 3.

17. The coating composition of claim 1, wherein n is 2 to 3.

18. The coating composition of claim 1, wherein R¹ is an organic group having less than 100 carbon atoms.

19. The coating composition of claim 1, wherein R¹ is an organic group having substituents selected from the group of oxygen atoms, carbonyl groups, hydroxyl groups, and combinations thereof.

20. The coating composition of claim 1, wherein R¹ is an organic group having 3 to 24 carbon atoms and substituents selected from the group of oxygen atoms, carbonyl groups, hydroxyl groups, and combinations thereof;

and wherein R² is hydrogen.

21. The coating composition of claim 1, wherein R¹ has the formula R³—

(CH₂)_m—

(O(CH₂)_p)_q—

wherein R³ is an alkyl or aryl group, m is 0 to 24, p is 1 to 4, and q is 0 to 50.

22. The coating composition of claim 14, wherein p is 1 to 2.

23. The coating composition of claim 14, wherein m+pq is less than about 23.

24. The coating composition of claim 1, wherein R² is hydrogen or an organic group having less than 100 carbon atoms.

25. The coating composition of claim 1, wherein X is a divalent organic group having 2 to 8 carbon atoms.

26. The coating composition of claim 1, wherein X is a divalent organic group having 3 to 5 carbon atoms.

27. The coating composition of claim 1, wherein X is an organic group having substituents selected from the group of oxygen atoms, carbonyl groups, and combinations thereof.

28. The coating composition of claim 1, wherein X has the formula —

(CH₂)_s—

, wherein s is 2 to 8.

40. The coating composition of claim 1, which has been coated onto a substrate and dried.

29. A coating composition, comprising:

a latex polymer; and

a coalescent having the formula;

30. The coating composition of claim 29, wherein the coalescent facilitates the formation of polymer films of the latex polymer at a temperature of about 4°

C. to about 10°

C.

31. The coating composition of claim 29, wherein the coalescent facilitates the formation of polymer films of the latex polymer at a temperature of about 4°

C. to about 5°

C.

37. The coating composition of claim 30, wherein the coalescent has a volatile organic content of less than about 30%.

41. The coating composition of claim 29, which has been coated onto a substrate and dried.

32. A coating composition, comprising:

a latex polymer; and

a coalescent having the formula;

42. The coating composition of claim 32, which has been coated onto a substrate and dried.

33. A coating composition, comprising:

a latex polymer; and

a coalescent having the formula;

34. The coating composition of claim 33, wherein the coalescent has a volatile organic content of less than about 30%.

43. The coating composition of claim 33, which has been coated onto a substrate and dried.

35. A coating composition, comprising:

a latex polymer; and

a coalescent having the formula;

36. The coating composition of claim 35 wherein s is 3 to 5.

44. The coating composition of claim 35, which has been coated onto a substrate and dried.

38. A coating composition, comprising:

a latex polymer; and

a coalescent having the formula;

39. The coating composition of claim 38, wherein the coalescent has a volatile organic content of less than about 30%.

45. The coating composition of claim 38, which has been coated onto a substrate and dried.