Ethoxylated surfactants
AssigneesNovus International, Inc., The Board of Regents of the University of Oklahoma
InventorsGraciela Arhancet, Scott Long, Xiaojun Wang, Richard Vonder Embse, Brian Grady, Jeff Harwell, Guangzhe Yu
Life of this patent
Estimating the term…
Abstract
The present invention provides sulfur- or selenium-containing compounds comprising hydrophobic moieties and ethoxylated ester or ethoxylated amide moieties such that the compounds have surfactant properties. Also provided are methods for using the disclosed compounds or mixtures thereof in a variety of applications.
Claims27
A compound of Formula (I):
- wherein:
- R1 is hydrocarbyl or substituted hydrocarbyl;
- R2 is hydrogen, hydrocarbyl, or substituted hydrocarbyl;
- R3 is alkyl or alkenyl having 3 or more carbon atoms;
- R6 is hydrogen or alkyl;
- X is O;
- Y is O or NH;
- Z is sulfur, sulfoxide, sulfone, or selenium;
- k is an integer from 1 to 500;
- n is an integer from 1 to 20;
- and
- m is an integer from 1 to 500.
A method for cleaning an article, the process comprising contacting the article with a composition comprising at least one compound of Formula (I):
- wherein:
- R1 is hydrocarbyl or substituted hydrocarbyl;
- R2 is hydrogen, hydrocarbyl, or substituted hydrocarbyl;
- R3 is alkyl or alkenyl having 3 or more carbon atoms;
- R6 is hydrogen or alkyl;
- X and Y independently are O or NH;
- Z is sulfur, sulfoxide, sulfone, or selenium;
- k is an integer from 1 to 500;
- n is an integer from 1 to 20;
- and
- m is an integer from 1 to 500.
A polymer comprising:
- a) at least one subunit A having the following structure:
- b) at least one subunit B having the following structure:
- and
- c) at least one subunit C, optionally unsaturated, having the following structure:
- wherein:
- R1 is alkyl;
- R6 is hydrogen or alkyl;
- X is O or NH;
- Z is sulfur, sulfoxide, sulfone, or selenium;
- n is an integer from 1 to 20;
- and
- p is an integer from 3 to 500;
- wherein the polymer is a block polymer in which the subunits are arranged A-B-C, and the polymer comprises up to about 500 repeats of each subunit.
Dependencies are inferred from the claim text.