Claims
- 1. A process for reducing the viscosity of an aqueous alkyl polyglycoside solution having at least about 50% by weight of alkyl polyglycoside, comprising adding to said alkyl polyglycoside solution a viscosity reducing amount within the range from about 0.5 to about 5% by weight of a composition which is the product of the process which consist essentially of reacting epichlorohydrin and a compound of the formula II;
- R.sub.3 (EO).sub.n (PO).sub.m OH (II)
- wherein R.sub.3 is an alkyl, alkenyl or arenyl group having from 4 to 22 carbon atoms; wherein n is a number from 0 to 50 and m is a number from 0 to 10; wherein the mole ratio of epichlorohydrin to (II) is from about 0.60/1 to about 2/1; and wherein (EO) defines an ethylene oxide unit and (PO) defines a propylene oxide unit.
- 2. The process of claim 1 wherein R.sub.3 is an alkyl group having from 4 to 12 carbon atoms.
- 3. The process of claim 1 wherein R.sub.3 is an alkyl group having from 8 to 10 carbon atoms.
- 4. The process of claim 1 wherein n is a number from about 2 to about 50.
- 5. The process of claim 1 wherein the alkyl polyglycoside is a C.sub.12-16 alkyl polyglycoside.
- 6. The process of claim 1 wherein R.sub.3 is an alkyl group having from 4 to 12 carbon atoms and n is a number from about 2 to about 50.
- 7. The process of claim 1 wherein R.sub.3 is an alkyl group having from 8 to 10 carbon atoms and n is a number from about 4 to about 50.
- 8. A process for reducing the viscosity of an aqueous alkyl polyglycoside solution having at least about 50% by weight of alkyl polyglycoside, comprising adding to said alkyl polyglycoside solution a viscosity reducing amount within the range from about 0.5 to about 5% by weight of a composition which is the product of the process which consist essentially of reacting epichlorohydrin and a compound of the formula II;
- R.sub.3 (EO).sub.n (PO).sub.m OH (II)
- wherein R.sub.3 is an alkyl, alkenyl or arenyl group having from 4 to 22 carbon atoms; wherein n is a number from 0 to 50 and m is a number from 0 to 10; wherein the mole ratio of epichlorohydrin to (II) is from about 0.60/1 to about 2/1; and wherein (EO) defines an ethylene oxide unit and (PO) defines a propylene oxide unit, and the alkyl polyglycoside is a compound of formula I;
- R.sub.1 O(R.sub.2 O).sub.b (Z).sub.a (I)
- wherein R.sub.1, is a monovalent organic radical having from about 6 to about 30 carbon atoms; R.sub.2 is a divalent alkylene radical having from 2 to 4 carbon atoms; Z is a saccharide residue having 5 to 6 carbon atoms; b is a number having a value from 0 to about 12; a is a number having a value from 1 to about 6.
- 9. The process of claim 8 wherein R.sub.3 is an alkyl group having from 4 to 12 carbon atoms.
- 10. The process of claim 8 wherein R.sub.3 is an alkyl group having from 8 to 10 carbon atoms.
- 11. The process of claim 8 wherein n is a number from about 2 to about 50.
- 12. The process of claim 8 wherein the alkyl polyglycoside is a C.sub.12-16 alkyl polyglycoside.
- 13. The process of claim 8 wherein R.sub.3 is an alkyl group having from 4 to 12 carbon atoms and n is a number from about 2 to about 50.
- 14. The process of claim 8 wherein R.sub.3 is an alkyl group having from 8 to 10 carbon atoms and n is a number from about 4 to about 50.
- 15. The process of claim 8 wherein R.sub.1 is an alkyl group having from about 8 to about 10 carbon atoms and a is about 1.5.
- 16. A process for preventing the crystallization of solids from an aqueous alkyl polyglycoside solution having at least about 50% by weight of alkyl polyglycoside, comprising adding to said alkyl polyglycoside solution a solid crystallization prevention amount within the range from about 0.5 to about 5% by weight of a composition which is the product of the process which consists essentially of reacting epichlorohydrin and a compound of the formula II;
- R.sub.3 (EO).sub.n (PO).sub.m OH (II)
- wherein R.sub.3 is an alkyl, alkenyl or arenyl group having from 4 to 22 carbon atoms; wherein n is a number from 0 to 50 and m is a number from 0 to 10; wherein the mole ratio of epichlorohydrin to (II) is from about 0.60/1 to about 2/1; and wherein (EO) defines an ethylene oxide unit and (PO) defines a propylene oxide unit.
- 17. The process of claim 16 wherein R.sub.3 is an alkyl group having from 4 to 12 carbon atoms.
- 18. The process of claim 16 wherein R.sub.3 is an alkyl group having from 8 to 10 carbon atoms.
- 19. The process of claim 16 wherein n is a number from about 2 to about 50.
- 20. The process of claim 16 wherein the alkyl polyglycoside is a C.sub.12-16 alkyl polyglycoside.
- 21. The process of claim 16 wherein R.sub.3 is an alkyl group having from 4 to 12 carbon atoms and n is a number from about 2 to about 50.
- 22. The process of claim 16 wherein R.sub.3 is an alkyl group having from 8 to 10 carbon atoms and n is a number from about 4 to about 50.
- 23. A process for reducing the viscosity of an aqueous alkyl polyglycoside solution having at least about 50% by weight of alkyl polyglycoside, comprising adding to said alkyl polyglycoside solution a viscosity reducing amount within the range from about 0.5 to about 5% by weight of a composition which consist of the reaction product of epichlorohydrin and a compound of the formula II;
- R.sub.3 (EO).sub.n (PO).sub.m OH (II)
- wherein R.sub.3 is an alkyl, alkenyl or arenyl group having from 4 to 22 carbon atoms; wherein n is a number from 0 to 50 and m is a number from 0 to 10; wherein the mole ratio of epichlorohydrin to (II) used to form the reaction product is from about 0.60/1 to about 2/1; and wherein (EO) defines an ethylene oxide unit and (PO) defines a propylene oxide unit, and the alkyl polyglycoside is a compound of formula I;
- R.sub.1 O(R.sub.2 O).sub.b (Z).sub.a (I)
- wherein R.sub.1, is a monovalent organic radical having from about 6 to about 30 carbon atoms; R.sub.2 is a divalent alkylene radical having from 2 to 4 carbon atoms; Z is a saccharide residue having 5 to 6 carbon atoms; b is a number having a value from 0 to about 12; a is a number having a value from 1 to about 6.
- 24. The process of claim 23 wherein R.sub.3 is an alkyl group having from 4 to 12 carbon atoms.
- 25. The process of claim 23 wherein R.sub.3 is an alkyl group having from 8 to 10 carbon atoms.
- 26. The process of claim 23 wherein n is a number from about 2 to about 50.
- 27. The process of claim 23 wherein the alkyl polyglycoside is a C.sub.12-16 alkyl polyglycoside.
- 28. The process of claim 23 wherein R.sub.3 is an alkyl group having from 4 to 12 carbon atoms and n is a number from about 2 to about 50.
- 29. The process of claim 23 wherein R.sub.3 is an alkyl group having from 8 to 10 carbon atoms and n is a number from about 4 to about 50.
- 30. The process of claim 23 wherein R.sub.1 is an alkyl group having from about 8 to about 10 carbon atoms and a is about 1.5.
- 31. A composition comprising an aqueous alkyl polyglycoside solution having at least about 50% by weight of alkyl polyglycoside, and a viscosity-reducing effective amount within the range from about 0.5 to about 5% by weight of a composition which consist of the reaction product of epichlorohydrin and a compound of the formula II;
- R.sub.3 (EO).sub.n (PO).sub.m OH (II)
- wherein R.sub.3 is an alkyl, alkenyl or arenyl group having from 4 to 22 carbon atoms; wherein n is a number from 0 to 50 and m is a number from 0 to 10; wherein the mole ratio of epichlorohydrin to (II) is from about 0.60/1 to about 2/1; and wherein (EO) defines an ethylene oxide unit and (PO) defines a propylene oxide unit.
- 32. The composition of claim 31 wherein R.sub.3 is an alkyl group having from 4 to 12 carbon atoms.
- 33. The composition of claim 31 wherein R.sub.3 is an alkyl group having from 8 to 10 carbon atoms.
- 34. The composition of claim 31 wherein n is a number from about 2 to about 50.
- 35. The composition of claim 31 wherein the alkyl polyglycoside is a C.sub.12-16 alkyl polyglycoside.
- 36. The composition of claim 31 wherein R.sub.3 is an alkyl group having from 4 to 12 carbon atoms and n is a number from about 2 to about 50.
- 37. The composition of claim 31 wherein R.sub.3 is an alkyl group having from 8 to 10 carbon atoms and n is a number from about 4 to about 50.
- 38. A composition comprising an aqueous alkyl polyglycoside solution having at least about 50% by weight of alkyl polyglycoside, and a crystallization-preventive effective amount within the range from about 0.5 to about 5% by weight of a composition which consist essentially of the reaction product of epichlorohydrin and a compound of the formula II;
- R.sub.3 (EO).sub.n (PO).sub.m OH (II)
- wherein R.sub.3 is an alkyl, alkenyl or arenyl group having from 4 to 22 carbon atoms; wherein n is a number from 0 to 50 and m is a number from 0 to 10; wherein the mole ratio of epichlorohydrin to (II) is from about 0.60/1 to about 2/1; and wherein (EO) defines an ethylene oxide unit and (PO) defines a propylene oxide unit.
- 39. The composition of claim 38 wherein R.sub.3 is an alkyl group having from 4 to 12 carbon atoms.
- 40. The composition of claim 38 wherein R.sub.3 is an alkyl group having from 8 to 10 carbon atoms.
- 41. The composition of claim 38 wherein n is a number from about 2 to about 50.
- 42. The composition of claim 38 wherein the alkyl polyglycoside is a C.sub.12-16 alkyl polyglycoside.
- 43. The composition of claim 38 wherein R.sub.3 is an alkyl group having from 4 to 12 carbon atoms and n is a number from about 2 to about 50.
- 44. The composition of claim 38 wherein R.sub.3 is an alkyl group having from 8 to 10 carbon atoms and n is a number from about 4 to about 50.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of application Ser. No. 08/783,224, filed on Jan. 14, 1997, now U.S. Pat. No. 5,827,453. This application also claims the benefit of copending provisional application serial No. 60/049,338, filed on Jun. 10, 1997.
US Referenced Citations (17)
Continuation in Parts (1)
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Number |
Date |
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783224 |
Jan 1997 |
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