Alkylated alkyl polyglucoside non-ionic surfactants

• US 20040254084A1
• Filed: 03/05/2003
• Published: 12/16/2004
• Est. Priority Date: 03/07/2002
• Status: Active Grant

• Current Assignee: Master Chemicals OOO (ChampionX Corporation)
• Original Assignee: Master Chemicals OOO (ChampionX Corporation)
• Inventors: McCall, David B.
• Granted Patent: US 6,958,314 B2
• Time in Patent Office: Days
• US Class Current: 510/421
• CPC Class Codes: C11D 1/662 Carbohydrates or derivatives

Abstract

A petro-chemical free nonionic surfactant is prepared by the alkylation of an alkyl polyglucoside (APG). Under suitable alkylation reaction conditions, the surfactants are preferably prepared by the reaction of an APG with either alkyl halide or an alkyl tosylate. These surfactants are low foaming and exhibit excellent detergency.

Claims

1. A nonionic surfactant corresponding to the formula:

2. The surfactant of claim 1 wherein R is lower alkyl ranging from about C₁ to about C₄.

3. The surfactant of claim 1 wherein R is ethyl.

4. The surfactant of claim 1 wherein R is 2-propyl.

5. The surfactant of claim 1 wherein R is n-butyl.

6. The surfactant of claim 1 wherein R is methyl.

8. The improvement of claim 6 wherein the reactant is an alkyl tosylate.

14. A detergent comprising:

the surfactant of claim 1.

7. In a process for preparing a petrochemical free, nonionic surfactant, the improvement which comprises:

catalytically reacting an alkyl polyglucoside with a reactant selected from the group consisting of;

(1) an alkyl halide,

(2) an alkyl tosylate,

(3) an alkyl sulfate, and

(4) mixtures thereof.

9. The improvement of claim 7 wherein the tosylate is selected from the group consisting methyl tosylates, ethyl tosylate, 2-propyl tosylate, n-butyl tosylate and mixtures thereof.

10. The improvement of claim 7 wherein the reactant is an alkyl halide.

12. The improvement of claim 10 wherein the alkyl halide is methyl iodide.

13. The improvement of claim 10 wherein the reactant is methyl chloride.