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US4254266A Expired / Lapsed US ⏱️ 0.0 years remaining

Fluorinated heterocyclic sulfides

Assignee: Arkema Inc
•
Filing: 1979-07-30
•
Granted: 1981-03-03
•
Expires: 1999-07-30
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Abstract

Abstract Fluorinated-alkyl sulfides represented by [R f (CH 2 ) n S] z Q where R f is fluoroalkyl, n is 2 or 3, z is 1 or 2, and Q is an aryl, alkylaryl, alkyl heterocyclic or heterocyclic radical, are useful as surfactants or as intermediates for the preparation of salt-type, quaternary-salt, or amphoteric surfactants.

Inventors

  • 👤 Sameeh S. Toukan
  • 👤 Murray Hauptschein

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 16:17
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/285; D06M15/295; C; C07; C07C; C07C323/00; C07C323/23; C07C323/24; C07C323/25; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/62; C07D213/70; C07D235/00; C07D235/02; C07D235/04; C07D235/24; C07D235/28; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/32; C07D239/38; C08; C08F; C08F28/00; C11; C11D; C11D1/00; C11D1/004; D06M13/00; D06M13/244; D06M13/248; D06M13/252

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 54 words
A fluorinated alkyl sulfide represented by the formula: R.sub.f (CH.sub.2).sub.n --S--Q where R f is selected from the group consisting of perfluoroalkyl, perfluoroisoalkoxyalkyl and perfluoromonochloralkyl radicals having from 5 to 13 carbon atoms and n is an integer of 2 or 3, and Q is selected from the group consisting of the following: ##STR18##
Claim 2
Dependent Claim 54 words
A fluorinated alkyl sulfide represented by the formula: R.sub.f (CH.sub.2).sub.n --S--Q where R f is selected from the group consisting of perfluoroalkyl, perfluoroisoalkoxyalkyl and perfluoromonochloralkyl radicals having from 5 to 13 carbon atoms and n is an integer of 2 or 3, and Q is selected from the group consisting of the following: ##STR18##
Claim 3
Dependent Claim 9 words
The compound of claim 1 wherein Q is ##STR19##
Claim 4
Dependent Claim 9 words
The compound of claim 1 wherein Q is ##STR20##
Claim 5
Dependent Claim 12 words
The compound of claim 1, 2, or 3 wherein n is 2.
Claim 6
Dependent Claim 18 words
The compound of claim 1, 2, or 3 wherein R f has from 7 to 11 carbon atoms.
Claim 7
Dependent Claim 13 words
The compound of claim 1, 2, or 3 wherein R f is perfluoroalkyl.
Claim 8
Dependent Claim 15 words
The compound of claim 4 wherein R f has from 7 to 11 carbon atoms.
Claim 9
Dependent Claim 10 words
The compound of claim 4 wherein R f is perfluoroalkyl.

References Cited (Backward Citations)

FR1268232A Cited
US3153653A Cited
US3513172A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-03-02 1984-09-01 1985-03-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-03-02 1988-09-01 1989-03-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-03-02 1992-09-01 1993-03-03 $7700.00 Window Closed / Lapsed

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