Polymeric dispersions and applications thereof

• US 7,964,657 B2
• Filed: 03/23/2007
• Issued: 06/21/2011
• Est. Priority Date: 03/23/2007
• Status: Expired due to Fees

• Current Assignee: Polyventive LLC
• Original Assignee: Peach State Labs Incorporated
• Inventors: Williams, Michael S., Grigat, Michael, Jackson, Robert S.
• Primary Examiner(s): Eashoo; Mark
• Assistant Examiner(s): Scott; Angela C
• Application Number:
  US11/728,200
• Publication Number:
  US 20080234415A1
• Time in Patent Office: 1,551 Days
• Field of Search: 524/211, 524/507, 524/458, 516/20, 516/31, 523/333
• US Class Current: 524/211
• CPC Class Codes: C08F 2/22 Emulsion polymerisation

Abstract

The present invention provides methods of conducting emulsion polymerizations and dispersion resulting therefrom. The present invention additionally provides substrates coated or treated with polymeric dispersions.

Claims

1. A dispersion comprising:

at least one emulsifier;

a monomeric component comprising a plurality of monomers having at least one polymerizable functionality comprising a site of unsaturation; and

a continuous phase comprising an aqueous solution of a compound of Formula (I)

2. The dispersion of claim 1, wherein R¹, R², R³, and R⁴ are hydrogen.

3. The dispersion of claim 1, wherein the monomeric component comprises a plurality of vinylic monomers.

4. The dispersion of claim 1, wherein the at least one emulsifier comprises a surfactant.

5. The dispersion of claim 4, wherein the surfactant comprises anionic surfactants, cationic surfactants, nonionic surfactants, amphoteric surfactants, or mixtures thereof.

6. The dispersion of claim 1, wherein the dispersion is colloidal.

7. The dispersion of claim 1, further comprising an organic solvent.

8. The dispersion of claim 1, wherein the dispersion does not comprise an organic cosolvent.

9. The dispersion of claim 1, wherein the monomeric component comprises trifluoromethyl acrylate monomer, perfluoroalkyl acrylate monomer, perfluoroalkyl methacrylate monomer or mixtures thereof.

10. The dispersion of claim 1, wherein the monomeric component comprises methacrylate monomers, acrylate monomers, methacrylamide monomers, acrylamide monomers or mixtures thereof.

11. The dispersion of claim 10, wherein the methacrylate monomers comprise alkyl methacrylates, aryl methacrylates, hydroxy functional methacrylates, epoxy functional methacrylates, isocyanate functional methacrylates, or fluoroalkyl methacrylates or mixtures thereof.

12. The dispersion of claim 10, wherein the acrylate monomers comprise alkyl acrylates, aryl acrylates, hydroxy functional acrylates, epoxy functional acrylates, isocyanate functional acrylates, or fluoroalkyl acrylates or mixtures thereof.

13. A polymeric dispersion comprising:

at least one emulsifier;

a dispersed phase comprising a polymeric component comprising fluoropolymer particles; and

a continuous phase comprising an aqueous solution of a compound of Formula (I)

14. The dispersion of claim 13, wherein the fluoropolymer particles have an average size ranging from about 1 nm to about 1 μ

m.

15. The dispersion of claim 13, wherein the fluoropolymer particles comprise fluoroalkyl methacrylates, fluoroalkyl acrylates, fluoroalkyl aryl urethanes, fluoroalkyl urethanes, fluoroalkyl allyl urethanes, fluoroalkyl urethane acrylates, fluoroalkyl acrylamides, fluoroalkyl sulfonamide acrylates, or mixtures thereof.

16. The dispersion of claim 15, wherein the polymeric particles have an average size ranging from about 100 nm to about 200 nm.

17. The dispersion of claim 15, wherein the polymeric particles have an average size ranging from about 40 nm to about 130 nm.

18. The dispersion of claim 15, wherein the polymeric particles are present in an amount ranging from about 5 weight percent to about 30 weight percent.

19. The dispersion of claim 13, wherein the fluoropolymer particles comprise polytetrafluoroethylene, fluorinated ethylene-propylene (FEP), perfluoroalkoxy resin, polytrichlorotrifluoroethylene, ethylene-tetrafluoroethylene, polyvinylidene fluoride, polyvinyl fluoride, or mixtures thereof.

20. The dispersion of claim 13, wherein the dispersion is colloidal.

21. The dispersion of claim 13, wherein the dispersion has substantially no organic co-solvent.

22. A method of conducting emulsion polymerization comprising:

providing a dispersion comprising at least one emulsifier, at least one initiator, a monomeric component comprising a plurality of monomers having at least one polymerizable functionality comprising a site of unsaturation, and a continuous phase comprising an aqueous solution of a compound of Formula (I)

23. The method of claim 22, further comprising forming a polymeric material.

24. The method of claim 23, wherein forming a polymeric material comprises initiating polymerization of the monomeric component, propagating polymerization of the monomeric component, and terminating polymerization of the polymeric component.

25. The method of claim 22, wherein the monomeric component comprises methacrylate monomers, acrylate monomers, methacrylamide monomers, acrylamide monomers or mixtures thereof.

26. The method of claim 25, wherein the methacrylate monomers comprise alkyl methacrylates, aryl methacrylates, hydroxy functional methacrylates, epoxy functional methacrylates, isocyanate functional methacrylates, or fluoroalkyl methacrylates or mixtures thereof.

27. The method of claim 25, wherein the acrylate monomers comprise alkyl acrylates, aryl acrylates, hydroxy functional acrylates, epoxy functional acrylates, isocyanate functional acrylates, or fluoroalkyl acrylates or mixtures thereof.

28. A method of conducting an emulsion polymerization comprising:

providing a dispersion comprising at least one emulsifier, at least one initiator, a monomeric component comprising a plurality of monomers having at least one polymerizable functionality comprising a site of unsaturation, and an aqueous continuous phase;

initiating polymerization of the monomeric component with the at least one initiator; and

adding to the dispersion during polymerization of the monomeric component a compound of Formula (I)

29. A method of conducting an emulsion polymerization comprising:

providing a dispersion comprising at least one emulsifier, at least one initiator, a monomeric component comprising a plurality of monomers having at least one polymerizable functionality comprising a site of unsaturation, and an aqueous continuous phase;

forming a polymeric material; and

adding to the dispersion, after forming the polymeric material, a compound of Formula (I)

30. The method of claim 29, wherein forming a polymeric material comprises initiating polymerization of the monomeric component, propagating polymerization of the monomeric component, and terminating polymerization of the monomeric component.

31. A method of conducting emulsion polymerization comprising:

providing a dispersion comprising;

at least one emulsifier;

at least one initiator;

a monomeric component comprising trifluoromethyl acrylate monomer, perfluoroalkyl acrylate monomer, perfluoroalkyl methacrylate monomer or mixtures thereof;

and a continuous phase comprising an aqueous solution of a compound of Formula (I)

32. The method of claim 31, wherein the dispersion has substantially no organic cosolvent.

33. A substrate comprising:

at least one surface at least partially coated with a polymeric dispersion comprising a dispersed phase comprising a polymeric component comprising fluoropolymer particles and a continuous phase comprising an aqueous solution of a compound of Formula (I)

34. The substrate of claim 33, wherein the substrate comprises paper, leather, woven articles, non-woven articles, carpet, metals, masonry, wood products, stone, ceramics, plastics, natural fibers, synthetic fibers, or combinations thereof.

35. The substrate of claim 34, wherein the synthetic fibers comprise polyamide fibers, polyester fibers, polyolefin fibers, polyurethane fibers, polyacrylonitrile fibers, or combinations thereof.

36. The substrate of claim 34, wherein the natural fibers comprise cotton fibers, cellulose acetate fibers, cellulose-based fibers, wool fibers, silk fibers, or combinations thereof.

37. The substrate of claim 33, wherein the substrate has an oil repellency of at least 5 according to AATCC 118.

38. The substrate of claim 33, wherein the substrate has an oil repellency of at least 6 according to AATCC 118.

39. The substrate of claim 33, wherein the substrate has an oil repellency of at least 7 according to AATCC 118.

40. The substrate of claim 33, wherein the substrate has a water/alcohol repellency of at least 6 according to AATCC 193.

41. The substrate of claim 33, wherein the substrate has a water/alcohol repellency of at least 8 according to AATCC 193.

42. The substrate of claim 33, wherein the substrate has a spray rating of at least 80 according to AATCC 22.

43. The substrate of claim 33, wherein the substrate has a spray rating of at least 90 according to AATCC 22.

44. The substrate of claim 33, wherein the substrate has a spray rating of 100 according to AATCC 22.

45. The substrate of claim 33, wherein the substrate has a dry crocking fastness of at least 3.5 according to AATCC 8.

46. The substrate of claim 33, wherein the substrate has a dry crocking fastness of at least 4.5 according to AATCC 8.

47. The substrate of claim 33, wherein the substrate has a wet crocking fastness of at least 3.5.

48. The substrate of claim 33, wherein the substrate has a dry crocking fastness of at least 4.5.

49. A method of producing a coated substrate comprising:

providing a substrate having at least one surface;

providing a polymeric dispersion comprising a dispersed phase comprising a polymeric component comprising fluoropolymer particles and a continuous phase comprising an aqueous solution of a compound of Formula (I);

50. The method of claim 49, wherein the substrate comprises paper, leather, woven articles, non-woven articles, carpet, metals, masonry, wood products, stone, ceramics, plastics, natural fibers, synthetic fibers, or combinations thereof.

51. The substrate of claim 50, wherein the synthetic fibers comprise polyamide fibers, polyester fibers, polyolefin fibers, polyurethane fibers, polyacrylonitrile fibers, or combinations thereof.

52. The substrate of claim 50, wherein the natural fibers comprise cotton fibers, cellulose acetate fibers, wool fibers, silk fibers, or combinations thereof.