IP Library › Granted Patent US 7,026,435
Granted Patent B2
US 7,026,435 · App. 09/875,237 · Granted Apr 11, 2006

Water-dispersible, hydrophobic polyalkyleneimine polyamide fiberglass lubricant, process for producing the same, and method of use therefor

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Quick Facts
Patent No.
US 7,026,435
App. No.
09/875,237
Granted
Apr 11, 2006
Kind
B2
Abstract

Polymer derivatives based upon polyalkyleneimine backbones having from about 20% to about 60% of their reactive amino functionalities substituted by C 14-20 carboxylic acids, are disclosed. Fiber lubricants and/or sizing compositions comprising such polymer derivatives are also disclosed. The disclosed fiber lubricants exhibit excellent affinity for fiberglass fibers and have excellent hydrophobicity, while also providing excellent lubrication. Methods for preparing said derivatives are also disclosed. Also disclosed are methods for treating fibers using the polymer derivatives.

Claims (30)

1. A polymer derivative comprising a polyalkyleneimine backbone having a number of reactive amino functionalities, each reactive amino functionality having at least one reactive hydrogen atom, wherein from 20% to 60% of the number of reactive amino functionalities have a substituent-compound substituted in place of the at least one reactive hydrogen atom, each substituent-compound independently selected from the group consisting of carboxylic acids having from about 14 to about 20 carbon atoms.

2. The polymer derivative according to claim 1 , wherein the polyalkyleneimine backbone comprises a polyethyleneimine having a molecular weight of from about 400 to about 2500.

3. The polymer derivative according to claim 1 , wherein the polyalkyleneimine backbone comprises a polyethyleneimine having a molecular weight of from about 1000 to about 1800.

4. The polymer derivative according to claim 1 , wherein the substituent-compounds selected from the group consisting of carboxylic acids comprise a mixture of two or more C 14 –C 20 carboxylic acids.

5. The polymer derivative according to claim 1 , wherein each substituent-compound is independently selected from the group consisting of carboxylic acids having from about 16 to about 18 carbon atoms.

6. The polymer derivative according to claim 1 , wherein the substituent-compounds selected from the group consisting of carboxylic acids comprise a mixture of two or more C 16 –C 18 carboxylic acids.

7. The polymer derivative according to claim 6 , wherein the mixture comprises palmitic acid and stearic acid in a ratio of about 50:50.

8. The polymer derivative according to claim 1 , wherein from about 25% to about 55% of the number of reactive amino functionalities have a substituent-compound substituted in place of the at least one reactive hydrogen atom.

9. The polymer derivative according to claim 1 , wherein from about 35% to about 45% of the number of reactive amino functionalities have a substituent-compound substituted in place of the at least one reactive hydrogen atom.

10. A polymer derivative comprising a polyethyleneimine backbone having a molecular weight of about 1200 and a number of reactive amino functionalities, each reactive amino functionality having at least one reactive hydrogen atom, wherein from about 35% to about 45% of the number of reactive amino functionalities have a substituent-compound substituted in place of the at least one reactive hydrogen atom, each substituent-compound independently selected from the group consisting of carboxylic acids having from about 16 to about 18 carbon atoms.

11. A polymer derivative prepared by a process comprising reacting a polyalkyleneimine having a number of reactive amino functionalities with an amount of substituent-compounds comprising one or more carboxylic acids having from about 14 to about 20 carbon atoms, under conditions sufficient to derivatize from 20% to 60% of the reactive amino functionalities with the substituent-compounds.

12. A process for preparing a polymer derivative, the process comprising: (a) providing a polyalkyleneimine having a number of reactive amino functionalities per mole, (b) reacting the polyalkyleneimine with an amount of substituent-compounds comprising one or more carboxylic acids having from about 14 to about 20 carbon atoms, wherein the amount of the substituent-compounds used is sufficient to derivatize from 20% to 60% of the number of reactive amino functionalities per mole.

13. The process according to claim 12 , wherein the polyalkyleneimine comprises a polyethyleneimine having a molecular weight of from about 400 to about 2500.

14. The process according to claim 12 , wherein the polyalkyleneimine comprises a polyethyleneimine having a molecular weight of from about 1000 to about 1800.

15. The process according to claim 12 , wherein the substituent-compounds comprise a mixture of two or more C 14 –C 20 carboxylic acids.

16. The process according to claim 12 , wherein the substituent-compounds comprise one or more carboxylic acids having from about 16 to about 18 carbon atoms.

17. The process according to claim 12 , wherein the substituent-compounds comprise a mixture of two or more C 16 –C 18 carboxylic acids.

18. The process according to claim 17 , wherein the mixture comprises palmitic acid and stearic acid in a ratio of about 50:50.

19. The process according to claim 12 , wherein the amount of the substituent-compounds used is sufficient to derivatize from about 25% to about 55% of the number of reactive amino functionalities per mole.

20. The process according to claim 12 , wherein the amount of the substituent-compounds used is sufficient to derivatize from about 35% to about 45% of the number of reactive amino functionalities per mole.

21. A process for preparing a polymer derivative, the process comprising: (a) providing a polyethyleneimine having a molecular weight of about 1200 and a number of reactive amino functionalities per mole, (b) reacting the polyethyleneimine with an amount of substituent-compounds comprising two or more carboxylic acids having from about 16 to about 18 carbon atoms, wherein the amount of the substituent-compounds used is sufficient to derivative from about 35% to about 45% of the number of reactive amino functionalities per mole.

22. A polymer derivative prepared by the process according to claim 12 .

23. A polymer derivative prepared by the process according to claim 21 .

24. A fiber lubricant composition comprising a polymer derivative according to claim 1 .

25. A fiber lubricant composition comprising a polymer derivative according to claim 10 .

26. A fiber lubricant composition comprising a polymer derivative according to claim 11 .

27. A fiber lubricant composition comprising a polymer derivative according to claim 22 .

28. A fiber lubricant composition comprising a polymer derivative according to claim 23 .

29. A method of lubricating a fiber material comprising providing a fiber material and contacting the fiber material with a polymer derivative according to claim 1 .

30. A method of lubricating a fiber material comprising providing a fiber material and contacting the fiber material with a polymer derivative prepared by the process according to claim 12 .