| US 7,595,349 B1 | ||
| Thermally cleavable surfactants | ||
| James R. McElhanon, Manteca, Calif. (US); Blake A. Simmons, San Francisco, Calif. (US); Thomas Zifer, Manteca, Calif. (US); Gregory M. Jamison, Albuquerque, N. Mex. (US); Douglas A. Loy, Albuquerque, N. Mex. (US); Kamyar Rahimian, Albuquerque, N. Mex. (US); Timothy M. Long, Urbana, Ill. (US); David R. Wheeler, Albuquerque, N. Mex. (US); and Chad L. Staiger, Albuquerque, N. Mex. (US) | ||
| Assigned to Sandia Corporation, Livermore, Calif. (US) | ||
| Filed on Jan. 26, 2006, as Appl. No. 11/341,409. | ||
| Application 11/341409 is a division of application No. 10/866475, filed on Jun. 10, 2004, granted, now 7,022,861. | ||
| Int. Cl. B01F 17/00 (2006.01); C07D 491/18 (2006.01) | ||
| U.S. Cl. 516—102 [548/435] | 8 Claims |
| 1. A thermally cleavable surfactant composition, comprising:
a Diels-Alder adduct;
a group selected from the list consisting of anionic, cationic, and nonionic groups, wherein the anionic group is selected
from the list consisting of carboxylic acid salts, amine salts, sulfonic acid salts, sulfosuccinate esters, sulfuric acid
ester salts, sulfated polyethylenated alcohols, sulfated triglyceride oils, and phosphoric and polyphosphoric acid esters,
the cationic group is selected from the list consisting of quaternary ammonium salts, amine salts, and amine oxides, and the
nonionic group is selected from the list consisting of polyoxyethylenated alkyl phenols, alcohol ethoxylates, glycols, mercaptans,
esters, alkanolamine, tertiary acetylenic glycols, pyrrolidones, alkylglycosides, and zwitterionic groups attached at a first
end of said Diels-Alder adduct; and
a non-polar alkyl group at a second end of attached to said Diels-Alder adduct distal to said first end.
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