Antistatic compositions and treatment

• US 4,313,978 A
• Filed: 12/03/1979
• Issued: 02/02/1982
• Est. Priority Date: 12/20/1978
• Status: Expired due to Term

• Current Assignee: Minnesota Mining and Manufacturing Co (3M Company)
• Original Assignee: Minnesota Mining and Manufacturing Co (3M Company)
• Inventors: Stevens, John, Huizinga, John S., Newman, Stephen
• Primary Examiner(s): Beck, Shrive P.
• Assistant Examiner(s): Bell, Janyce A.
• Application Number:
  US06/099,638
• Time in Patent Office: 792 Days
• Field of Search: 427/384, 427/396, 427/397, 252/546, 252/547, 252/88, 252/500, 260/DIG. 20, 260/DIG. 15, 260/DIG. 19
• US Class Current: 427/384
• CPC Class Codes: D06M 13/213 Perfluoroalkyl carboxylic acids; Anhydrides, halides or salts thereof
• CPC Class Codes: D06M 13/256 Sulfonated compounds esters thereof, e.g. sultones
• CPC Class Codes: Y10S 260/15 Antistatic agents not otherwise provided for
• CPC Class Codes: Y10S 260/20 Antistatic agent contains pentavalent nitrogen
• CPC Class Codes: Y10S 430/162 Protective or antiabrasion layer
• CPC Class Codes: Y10S 524/913 Contains nitrogen nonreactant material
• CPC Class Codes: Y10T 428/23986 With coating, impregnation, or bond

Abstract

A method of treating a surface, e.g. carpet, gramophone record, to reduce the static charging thereon which comprises applying a novel antistatic composition comprising a fluorinated anionic surfactant which is an amine salt of an acid containing a fluorinated organic radical and an antistatic agent which is an ionic salt of an amine, preferably in alcoholic solution.

Claims

1. An antistatic composition comprising a mixture of (1) a fluorinated anionic surfactant, which surfactant is an amine salt of an acid containing a fluorinated organic radical, with (2) an antistatic agent, which agent is an ionic salt of an amine and an acid without a fluorinated organic radical wherein the anion molar % of the fluorinated organic radical is between 1.8% and 42.9% of the mixture.

2. An antistatic composition according to claim 1 wherein the fluorinated anionic surfactant has the formula:

space="preserve" listing-type="equation">R.sub.f -A-X.sup.⊖

Z.sup.⊕

wherein

7. An antistatic composition according to claim 2 wherein R_f represents a perfluoroalkyl radical having 2 to 20 carbon atoms and X.sup.⊖

is selected from the group consisting of a carboxylic acid group and sulphonic acid group.

8. An antistatic composition according to claim 2 wherein R_f -A-X.sup.⊖

is selected from perfluoropentyl carboxylate and perfluoro-octylsulfonate.

9. An antistatic composition according to claim 2 wherein Z.sup.⊕

is derived from an amine selected from the group consisting of piperidine, dimethylaminoethanol, morpholine, triethanolamine and triethylamine.

10. An antistatic composition according to claim 1 wherein said antistatic agent has an anionic portion selected from the group consisting of halide, sulphate, aryl sulphonate, aliphatic sulphonate, aryl carboxylate and aliphatic carboxylate.

12. An antistatic composition according to claim 7 wherein said antistatic agent is a salt of an amine selected from the group consisting of piperidine, dimethylaminoethanol, morpholine, triethanolamine and triethylamine.

13. An antistatic composition according to claim 1 wherein said fluorinated anionic surfactant and antistatic agent are derived from the same amine.

14. An antistatic composition according to claim 1 wherein said fluorinated anionic surfactant and antistatic agent are dissolved in a solvent.

15. An antistatic composition according to claim 10 wherein said solvent comprises a lower alkanol.

16. An antistatic composition according to claim 10 for treating gramophone records which additionally comprises, as lubricant, isocetyl stearate.

17. An antistatic composition according to claim 1 wherein the molar ratio of fluorinated anionic surfactant to antistatic agent is about 1:

6.

18. An antistatic composition according to claim 10 wherein the amount of fluorinated anionic surfactant and antistatic agent is about 0.1% w/v.

20. A method according to claim 15 wherein the fluorinated anionic surfactant has the general formula:

space="preserve" listing-type="equation">R.sub.f -A-X.sup.⊖

Z.sup.⊕

wherein

25. A method according to claim 16 wherein R_f represents a perfluoroalkyl radical having 2 to 20 carbon atoms and X.sup.⊖

is selected from a carboxylic acid group and sulphonic acid group.

26. A method according to claim 16 wherein R_f -A-X.sup.⊖

is selected from perfluoropentyl carboxylate and perfluoro-octylsulfonate.

27. A method according to claim 16 wherein Z.sup.⊕

is derived from an amine selected from the group consisting of piperidine, dimethylaminoethanol, morpholine, triethanolamine and triethylamine.

28. A method according to claim 15 wherein said antistatic agent has an anionic portion selected from the group consisting of halide, sulfate, aryl sulfonate, aliphatic sulfonate, aryl carboxylate and aliphatic carboxylate.

29. A method according to claim 20 wherein said anionic portion is selected from the group consisting of C₇ H₇ SO₃.sup.⊖

, SO₄.sup.⊖

, Cl.sup.⊖

, CH₃ (CH₂)₈ CO₂.sup.⊖

, C₆ H₅ CO₂.sup.⊖ and

CH₃ --CO₂.sup.⊖

.

31. A method according to claim 15 wherein said fluorinated anionic surfactant and antistatic agent are derived from the same amine.

32. A method according to claim 15 wherein said fluorinated anionic surfactant and antistatic agent are applied in a solvent which is thereafter evaporated.

37. A method according to claim 15 wherein said surface is a carpet.

38. A method according to claim 15 wherein said surface is selected from the group consisting of an acrylic cover for gramophone turntables, a slide for projectors, and sheets for use with overhead projectors.

3. R_f represents a fluorinated organic radical,

4. A is selected from the group consisting of a bond or divalent linking group,

5. X.sup.⊖

represents an acid anion, and

6. Z.sup.⊕

represents a quaternary ammonium cation.

11. An antistatic composition according to claim 6 wherein said anionic portion is selected from the group consisting of C₇ H₇ SO₃.sup.⊖

, SO₄.sup.⊖

, Cl.sup.⊖

, CH₃ (CH₂)₈ CO₂.sup.⊖

, C₆ H₅ CO₂.sup.⊖

, and CH₃ --CO₂.sup.⊖

.

19. A method of treating a surface to reduce the static charging thereon which comprises applying to said surface a mixture of (1) a fluorinated anionic surfactant which is an amine salt of an acid containing a fluorinated organic radical and (2) an antistatic agent which is an ionic salt of an amine and an acid without a fluorinated organic radical wherein the anion molar % of the fluorinated organic radical is between 1.8% and 42.9% of the mixture.

21. R_f represents a fluorinated organic radical,

30. A method according to claim 21 wherein said antistatic agent is a salt of an amine selected from the group consisting of piperidine, dimethylaminoethanol, morpholine, triethanolamine and triethylamine.

22. A is selected from a bond or divalent linking group,

23. X.sup.⊖

represents an acid anion, and

24. Z.sup.⊕

represents a quaternary ammonium cation.

33. A method according to claim 24 wherein said solvent comprises a lower alkanol.

34. A method according to claim 24 wherein the molar ratio of fluorinated anionic surfactant to antistatic agent is about 1:

6.

35. A method according to claim 24 wherein the amount of fluorinated anionic surfactant and antistatic agent is about 0.1% w/v.

36. A method according to claim 24 wherein said surface is a gramophone record and isocetyl stearate is applied as a lubricant incorporated in said solution of surfactant and antistatic agent.