| US 7,547,732 B2 | ||
| Compositions of fluorochemical surfactants | ||
| George G. I. Moore, Afton, Minn. (US); William M. Lamanna, Stillwater, Minn. (US); Michael S. Terrazas, Prescott, Wis. (US); Rudolf J. Dams, Antwerp (Belgium); and Johan E. De Witte, Westmalle (Belgium) | ||
| Assigned to 3M Innovative Properties Company, St. Paul, Minn. (US) | ||
| Filed on Aug. 30, 2005, as Appl. No. 11/215,077. | ||
| Prior Publication US 2007/0049646 A1, Mar. 01, 2007 | ||
| Int. Cl. C07C 143/70 (2006.01) | ||
| U.S. Cl. 516—201 [516/203; 516/198] | 23 Claims |
1. A compound of the formula:
 wherein
each Rf is a fluoroalkyl group,
R is a divalent organic linking group,
Q is selected from —SO2N(−)(−), —(CH2)pCH(O—)(−),
and (CH2)p—CH(O—)(CH2)pO—, where p is an integer of 1 to 11,
Z is a hydrophilic group selected from amine oxide, sulfonate, sulfate, phosphate, and quaternary ammonium groups, and
each n is 0 to 11.
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