Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
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311/00
Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
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C07C311/00

Surfactants and methods of making and using same
09562212 · 2017-02-07 · ·

Anionic surfactants have a formula: R.sub.fSO.sub.2N(H)CH.sub.2CH(CH.sub.3)OH; or R.sub.fSO.sub.2N(H)(CH.sub.2CH.sub.2O).sub.xH, where x is an integer from 2-6. R.sub.f is a fluoroalkyl group having 3 to 8 carbon atoms. Neutral surfactants having a formula: (a) R.sub.fSO.sub.2N[CH.sub.2CH(CH.sub.3)OH].sub.2; (b) R.sub.fSO.sub.2N[CH.sub.2CH(CH.sub.3)OH][(CH.sub.2CH.sub.2O).sub.nH], where n is an integer from 1-6; (c) R.sub.fSO.sub.2N(R)[(CH.sub.2CH.sub.2O).sub.pH], where p is an integer from 2-6, and R is an alkyl group having 1 to 4 carbon atoms; or (d) R.sub.fSO.sub.2N[(CH.sub.2CH.sub.2O).sub.qH][(CH.sub.2CH.sub.2O).sub.mH], where q is an integer from 1-6 and m is an integer from 3-6. R.sub.f is a fluoroalkyl group having 3 to 8 carbon atoms.