Polymeric latexes prepared in the presence of 2-acrylamido-2-methylpropanesulfonate

1. A polymeric latex prepared by aqueous emulsion polymerization of a monomeric mixture of styrene, butadiene, and optionally 1 to 10 phm of a nonionic monomer, in the presence of a seed polymer prepared by the aqueous emulsion polymerization of 5 to 20 phm of styrene and 4 to 20 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

2. The polymeric latex according to claim 1 wherein the salt of 2-acrylamido-2-methylpropanesulfonic acid is present in the seed polymer in the range of 5 to 10 phm.

3. The A polymeric latex according to claim 2 wherein the prepared by aqueous emulsion polymerization of a monomeric mixture of styrene, butadiene, and optionally 1 to 10 phm of a nonionic monomer, in the presence of a seed polymer is prepared with by the aqueous emulsion polymerization of 1 to 8 phm of 1,3-butadiene in addition to, 5 to 15 phm of styrene, 2 to 10 phm of (meth)acrylonitrile, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

4. The A polymeric latex according to claim 2 where the prepared by aqueous emulsion polymerization of a monomeric mixture of styrene, butadiene, and optionally 1 to 10 phm of a nonionic monomer, in the presence of a seed polymer is prepared with by the aqueous emulsion polymerization of 1 to 8 phm of 1,3-butadiene in addition to, 5 to 15 phm of styrene, 2 to 10 phm of a C4-C9 (meth)acrylamide, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

5. The polymeric latex of claim 4 wherein the salt of 2-acrylamido-2-methylpropanesulfonic acid is present in the seed polymer in the range of 3 to 5 phm.

6. The polymeric latex according to claim 4 which the C4-C9 (meth)acrylamide is selected from one or more of the following: methacrylamide, N-Isopropylacrylamide, N-tertButylacrylamide, and N-(1, 1-dimethyl-3-oxobutyl)acrylamide.

7. The A polymeric latex according to claim 1 wherein the prepared by aqueous emulsion polymerization of a monomeric mixture of styrene, butadiene, and optionally 1 to 10 phm of a nonionic monomer, in the presence of a seed polymer is prepared with by the aqueous emulsion polymerization of 1 to 8 phm of 1,3-butadiene in addition to, 5 to 15 phm of styrene, 2 to 5 phm of a di(meth)acrylate with 5-20 ethylene oxide spacer units, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

8. The polymeric latex according to claim 7 wherein the salt of 2-acrylamido-2-methylpropanesulfonic acid is present in the seed polymer in the range of 3 to 5 phm.

9. A polymeric latex prepared by aqueous emulsion polymerization of a monomeric mixture of 15 to 80 phm styrene, 10 to 70 phm butadiene, and optionally 1 to 10 phm of a nonionic monomer in the presence of a seed polymer prepared by the aqueous emulsion polymerization of 5 to 15 phm of styrene and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

10. The polymeric latex according to claim 9 wherein the seed polymer is prepared with 1 to 8 phm of 1,3-butadiene in addition to 5 to 15 phm of styrene, 2 to 10 phm of (meth)acrylonitrile, and 3 to 5 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

11. The polymeric latex according to claim 9 where the seed polymer is prepared with 1 to 8 phm of 1,3-butadiene in addition to 5 to 15 phm of styrene, 2 to 10 phm of a C4-C9 (meth)acrylamide, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

12. The polymeric latex of claim 11 wherein the salt of 2-acrylamido-2-methylpropanesulfonic acid is present in the seed polymer in the range of 3 to 5 phm.

13. The polymeric latex according to claim 11 in which the C4-C9 (meth)acrylamide is selected from one or more of the following: methacrylamide, N-Isopropylacrylamide, N-tertButylacrylamide, and N-(1, 1-dimethyl-3-oxobutyl)acrylamide.

14. The polymeric latex according to claim 9 wherein the seed polymer is prepared with 1 to 8 phm of 1,3-butadiene in addition to 5 to 15 phm of styrene, 2 to 5 phm of a di(meth)acrylate with 5-20 ethylene oxide spacer units, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

15. The polymeric latex according to claim 14 wherein the salt of 2-acrylamido-2-methylpropanesulfonic acid is present in the seed polymer in the range of 3 to 5 phm.

16. A polymeric latex prepared by aqueous emulsion polymerization of a monomeric mixture of 25 to 65 phm styrene, 20 to 50 phm butadiene, and 1 to 8 phm of a hydroxy(meth)acrylate in the presence of a seed polymer prepared by the aqueous emulsion polymerization of 5 to 15 phm of styrene and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

17. The polymeric latex according to claim 16 wherein the seed polymer is prepared with 1 to 8 phm of 1,3-butadiene in addition to 5 to 15 phm of styrene, 2 to 10 phm of (meth)acrylonitrile, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

18. The polymeric latex according to claim 16 where the seed polymer is prepared with 1 to 8 phm of 1,3-butadiene in addition to 5 to 15 phm of styrene, 2 to 10 phm of a C4-C9 (meth)acrylamide, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

19. The polymeric latex of claim 18 wherein the salt of 2-acrylamido-2-methylpropanesulfonic acid is present in the seed polymer in the range of 3 to 5 phm.

20. The polymeric latex according to claim 18 in which the C4-C9 (meth)acrylamide is selected from one or more of the following: methacrylamide, N-Isopropylacrylamide, N-tertButylacrylamide, and N-(1, 1-dimethyl-3-oxobutyl)acrylamide.

21. The polymeric latex according to claim 16 wherein the seed polymer is prepared with 1 to 8 phm of 1,3-butadiene in addition to 5 to 15 phm of styrene, 2 to 5 phm of a di(meth)acrylate with 5-20 ethylene oxide spacer units, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

22. The polymeric latex according to claim 21 wherein the salt of 2-acrylamido-2-methylpropanesulfonic acid is present in the seed polymer in the range of 3 to 5 phm.

23. A polymeric latex prepared by aqueous emulsion polymerization of a monomeric mixture of styrene, butadiene, and optionally 1 to 10 phm of a nonionic comonomer in the presence of a seed polymer prepared by the aqueous emulsion polymerization of 5 to 15 phm of styrene, 2 to 10 phm of (meth)acrylonitrile, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

24. The polymeric latex according to claim 23 wherein the seed polymer is prepared with 1 to 8 phm of 1,3-butadiene in addition to 5 to 15 phm of styrene, 2 to 10 phm of (meth)acrylonitrile, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

25. The polymeric latex according to claim 23 where the seed polymer is prepared with 1 to 8 phm of 1,3-butadiene in addition to 5 to 15 phm of styrene, 2 to 10 phm of (meth)acrylonitrile, 2 to 10 phm of a C4-C9 (meth)acrylamide, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

26. The polymeric latex of claim 25 wherein the salt of 2-acrylamido-2-methylpropanesulfonic acid is present in the seed polymer in the range of 3 to 5 phm.

27. The polymeric latex according to claim 25 in which the C4-C9 (meth)acrylamide is selected from one or more of the following: methacrylamide, N-Isopropylacrylamide, N-tertButylacrylamide, and N-(1, 1-dimethyl-3-oxobutyl)acrylamide.

28. The polymeric latex according to claim 23 wherein the seed polymer is prepared with 1 to 8 phm of 1,3-butadiene in addition to 5 to 15 phm of styrene, 2 to 10 phm of (meth)acrylonitrile, 2 to 5 phm of a di(meth)acrylate with 5-20 ethylene oxide spacer units, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

29. The polymeric latex according to claim 28 wherein the salt of 2-acrylamido-2-methylpropanesulfonic acid is present in the seed polymer in the range of 3 to 5 phm.

30. A polymeric latex prepared by aqueous emulsion polymerization of a monomeric mixture of styrene, butadiene, and optionally 1 to 10 phm of a nonionic monomer, in the presence of a seed polymer prepared by the aqueous emulsion polymerization of 5 to 15 phm of styrene, 2 to 10 phm of a C4 through C9 (meth)acrylamide, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

31. The polymeric latex according to claim 30 wherein the seed polymer is prepared with 1 to 8 phm of 1,3-butadiene in addition to 5 to 15 phm of styrene, 2 to 10 phm of (meth)acrylonitrile, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

32. The polymeric latex according to claim 30 where the seed polymer is prepared with 1 to 8 phm of 1,3-butadiene in addition to 5 to 15 phm of styrene, 2 to 10 phm of a C4-C9 (meth)acrylamide, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

33. The polymeric latex of claim 32 wherein the salt of 2-acrylamido-2-methylpropanesulfonic acid is present in the seed polymer in the range of 3 to 5 phm.

34. The polymeric latex according to claim 32 which the C4-C9 (meth)acrylamide is selected from one or more of the following: methacrylamide, N-Isopropylacrylamide, N-tertButylacrylamide, and N-(1 ,1-dimethyl-3-oxobutyl)acrylamide.

35. The polymeric latex according to claim 30 wherein the seed polymer is prepared with 1 to 8 phm of 1,3-butadiene in addition to 5 to 15 phm of styrene, 2 to 10 phm of a C4-C9 (meth)acrylamide, 2 to 5 phm of a di(meth)acrylate with 5-20 ethylene oxide spacer units, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

36. The polymeric latex according to claim 35 wherein the salt of 2-acrylamido-2-methylpropanesulfonic acid is present in the seed polymer in the range of 3 to 5 phm.

37. A polymeric latex prepared by aqueous emulsion polymerization of a monomeric mixture of 15 to 80 phm styrene, 10 to 70 phm butadiene, 0 to 10 phm nonionic monomers and optionally 0.5 to 5 phm of a sulfonate monomer, in the presence of a seed polymer prepared by the aqueous emulsion polymerization of 5 to 15 phm of styrene and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

38. The polymeric latex according to claim 37 wherein the seed polymer is prepared with 1 to 8 phm of 1,3-butadiene in addition to 5 to 15 phm of styrene, 2 to 10 phm of (meth)acrylonitrile, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

39. The polymeric latex according to claim 37 where the seed polymer is prepared with 1 to 8 phm of 1,3-butadiene in addition to 5 to 15 phm of styrene, 2 to 10 phm of a C4-C9 (meth)acrylamide, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

40. The polymeric latex of claim 39 wherein the salt of 2-acrylamido-2-methylpropanesulfonic acid is present in the seed polymer in the range of 3 to 5 phm.

41. The polymeric latex according to claim 39 in which the C4-C9 (meth)acrylamide is selected from one or more of the following: methacrylamide, N-Isopropylacrylamide, N-tertButylacrylamide, and N-(1, 1-dimethyl-3-oxobutyl)acrylamide.

42. The polymeric latex according to claim 37 wherein the seed polymer is prepared with 1 to 8 phm of 1,3-butadiene in addition to 5 to 15 phm of styrene, 2 to 5 phm of a di(meth)acrylate with 5 to 20 ethylene oxide spacer units, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

43. The polymeric latex according to claim 42 wherein the salt of 2-acrylamido-2-methylpropanesulfonic acid is present in the seed polymer in the range of 3 to 5 phm.

44. A polymeric latex according to claim 37 in which the sulfonate monomer is selected from one or more of the following: salts of 2-acrylamido-2-methylpropanesulfonic acid, salts of styrenesulfonic acid, salts of(meth)allylsulfonic acid, salts of 2-sulfoethyl(meth)acrylate and salts of 3-sulfopropyl(meth)acrylate.

45. The polymeric latex according to claim 44 wherein the seed polymer is prepared with 1 to 8 phm of 1,3-butadiene in addition to 5 to 15 phm of styrene, 2 to 10 phm of (meth)acrylonitrile, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

46. The polymeric latex according to claim 45 wherein the salt of 2-acrylamido-2-methylpropanesulfonic acid is present in the seed polymer in the range of 3 to 5 phm.

47. The polymeric latex according to claim 44 where the seed polymer is prepared with 1 to 8 phm of 1,3-butadiene in addition to 5 to 15 phm of styrene, 2 to 10 phm of a C4-C9 (meth)acrylamide, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonic acid.

48. The polymeric latex of claim 47 wherein the salt of 2-acrylamido-2-methylpropanesulfonic acid is present in the seed polymer in the range of 3 to 5 phm.

49. The polymeric latex according to claim 47 in which the C4-C9 (meth)acrylamide is selected from one or more of the following: methacrylamide, N-Isopropylacrylamide, N-tertButylacrylamide, and N-(1, 1-dimethyl-3-oxobutyl)acrylamide.

50. The polymeric latex according to claim 44 wherein the seed polymer is prepared with 1 to 8 phm of 1,3-butadiene in addition to 5 to 15 phm of styrene, 2 to 5 phm of a di(meth)acrylate with 5-20 ethylene oxide spacer units, and 3 to 10 phm of a salt of 2-acrylamido-2-methylpropanesulfonie acid.

51. The polymeric latex according to claim 50 wherein the salt of 2-acrylamido-2-methylpropanesulfonic acid is present in the seed polymer in the range of 3 to 5 phm.