HIDE-CURING ADDITIVE

• US 20010001479A1
• Filed: 09/23/1998
• Published: 05/24/2001
• Est. Priority Date: 01/18/1996
• Status: Active Grant

• Current Assignee: Birko Corporation (Sealed Air)
• Original Assignee: Dana J. Johnson
• Inventors: HOLZHAUER, FREDERICK W., MCANINCH, TERRY L., JOHNSON, DANA J.
• Granted Patent: US 6,451,062 B2
• Time in Patent Office: Days
• US Class Current: 252/8.57
• CPC Class Codes: C14C 1/02 Curing raw hides

Abstract

The invention relates to an improved hide-curing additive comprising an effective biocidal amount of an essential oil and a non-ionic surfactant. The improved additive provides an effective cure for the hides, is environmentally safe and economical.

Claims

1. A hide-curing additive comprising an effective biocidal amount of an essential oil and a non-ionic surfactant.

2. The hide-curing additive of

claim 1

, wherein the essential oil is selected from the group consisting of pine oil, camphor, orange, citronella, d-limonene, dipentene, and eugenol.

3. The hide-curing additive of

claim 1

, wherein the essential oil is selected from the group consisting of pine oil and camphor.

4. The hide-curing additive of

claim 1

, wherein the surfactant is selected from the group consisting of primary and secondary alcohol ethoxylates, nonylphenol ethoxylates, and block polymer surfactants.

5. The hide-curing additive of

claim 1

, wherein the surfactant is a nonylphenoxypolyethoxyethanol.

6. The hide-curing additive of

claim 2

, wherein the surfactant is selected from the group consisting of primary and secondary alcohol ethoxylates, nonylphenol ethoxylates, and block polymer surfactants.

7. The hide-curing additive of

claim 2

, wherein the surfactant is a nonylphenoxypolyethoxyethanol.

8. The hide-curing additive of

claim 2

, wherein the surfactant is selected from the group consisting of T-Det N-4 and T-Det N-9.5.

9. The hide-curing additive of

claim 3

, wherein the surfactant is selected from the group consisting of primary and secondary alcohol ethoxylates, nonylphenol ethoxylates, and block polymer surfactants.

10. The hide-curing additive of

claim 3

, wherein the surfactant is a nonylphenoxypolyethoxyethanol.

11. The hide-curing additive of

claim 3

, wherein the surfactant is selected from the group consisting of T-Det N-4 and T-Det N-9.5.

12. A hide-curing additive comprising:

Essential oil7-40% by wt.Non-ionic surfactant10-30%Diluentbalance.

13. The hide-curing additive of

claim 12

, wherein the essential oil is selected from the group consisting of pine oil, camphor, orange, citronella, d-limonene, dipentene, and eugenol.

14. The hide-curing additive of

claim 12

, wherein the essential oil is selected from the group consisting of pine oil and camphor.

15. The hide-curing additive of

claim 12

, wherein the surfactant is selected from the group consisting of primary and secondary alcohol ethoxylates, nonylphenol ethoxylates, and block polymer surfactants.

16. The hide-curing additive of

claim 12

, wherein the surfactant is a nonylphenoxypolyethoxyethanol.

17. The hide-curing additive of

claim 13

, wherein the surfactant is selected from the group consisting of primary and secondary alcohol ethoxylates, nonylphenol ethoxylates, and block polymer surfactants.

18. The hide-curing additive of

claim 13

, wherein the surfactant is a nonylphenoxypolyethoxyethanol.

19. The hide-curing additive of

claim 13

, wherein the surfactant is selected from the group consisting of T-Det N-4 and T-Det N-9.5.

20. The hide-curing additive of

claim 14

, wherein the surfactant is selected from the group consisting of primary and secondary alcohol ethoxylates, nonylphenol ethoxylates, and block polymer surfactants.

21. The hide-curing additive of

claim 14

, wherein the surfactant is a nonylphenoxypolyethoxyethanol.

22. The hide-curing additive of

claim 14

, wherein the surfactant is selected from the group consisting of T-Det N-4 and T-Det N-9.5.

23. A hide-curing additive comprising:

Pine Oil5.0% by wt.Camphor10.0%T-Det N-9.58.0%T-Det N-47.0%LPA 21070.0%.

24. An improved method of curing hides wherein the hides are contacted with a salt solution comprising the addition of an effective biocidal amount of an essential oil and a non-ionic surfactant.

25. The method of

claim 24

, wherein the essential oil is selected from the group consisting of pine oil, camphor, orange, citronella, d-limonene, dipentene, and eugenol.

26. The method of

claim 24

, wherein the essential oil is selected from the group consisting of pine oil and camphor.

27. The method of

claim 24

, wherein the surfactant is selected from the group consisting of primary and secondary alcohol ethoxylates, nonylphenol ethoxylates, and block polymer surfactants.

28. The method of

claim 24

, wherein the surfactant is a nonylphenoxypolyethoxyethanol.

29. The method of

claim 25

, wherein the surfactant is selected from the group consisting of primary and secondary alcohol ethoxylates, nonylphenol ethoxylates, and block polymer surfactants.

30. The method of

claim 25

, wherein the surfactant is a nonylphenoxypolyethoxyethanol.

31. The method of

claim 25

, wherein the surfactant is selected from the group consisting of T-Det N-4 and T-Det N-9.5.

32. The method of

claim 27

, wherein the surfactant is selected from the group consisting of primary and secondary alcohol ethoxylates, nonylphenol ethoxylates, and block polymer surfactants.

33. The method of

claim 27

, wherein the surfactant is a nonylphenoxypolyethoxyethanol.

34. The method of

claim 27

, wherein the surfactant is selected from the group consisting of T-Det N-4 and T-Det N-9.5.

35. An improved method of curing hides wherein the hides are contacted with a salt solution, comprising the addition of a hide-curing additive comprising:

Essential oil7-40% by wt.Non-ionic surfactant10-30% by wt.Diluentbalance.

36. The method of

claim 35

, wherein the essential oil is selected from the group consisting of pine oil, camphor, orange, citronella, d-limonene, dipentene, and eugenol.

37. The method of

claim 35

, wherein the essential oil is selected from the group consisting of pine oil and camphor.

38. The method of

claim 35

, wherein the surfactant is selected from the group consisting of primary and secondary alcohol ethoxylates, nonylphenol ethoxylates, and block polymer surfactants.

39. The method of

claim 35

, wherein the surfactant is a nonylphenoxypolyethoxyethanol.

40. The method of

claim 36

, wherein the surfactant is selected from the group consisting of primary and secondary alcohol ethoxylates, nonylphenol ethoxylates, and block polymer surfactants.

41. The method of

claim 36

, wherein the surfactant is a nonylphenoxypolyethoxyethanol.

42. The method of

claim 36

, wherein the surfactant is selected from the group consisting of T-Det N-4 and T-Det N-9.5.

43. The method of

claim 37

, wherein the surfactant is selected from the group consisting of primary and secondary alcohol ethoxylates, nonylphenol ethoxylates, and block polymer surfactants.

44. The method of

claim 37

, wherein the surfactant is a nonylphenoxypolyethoxyethanol.

45. The method of

claim 37

, wherein the surfactant is selected from the group consisting of T-Det N-4 and T-Det N-9.5.

46. An improved method of curing hides wherein the hides are contacted with a salt solution, comprising the addition of a hide-curing additive comprising:

Pine Oil5.0% by wt.Camphor10.0%T-Det N-9.58.0%T-Det N-47.0%LPA 21070.0%.