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US4175096A Expired / Lapsed US ⏱️ 0.0 years remaining

Alkoxylated perfluoroalkanesulphonamides

Assignee: Bayer AG
•
Filing: 1977-08-30
•
Granted: 1979-11-20
•
Expires: 1997-08-30
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Abstract

Abstract Alkoxylated perfluoroalkanesulphonamides which are obtained by reacting perfluoroalkanesulphonamidoamines of the formula ##STR1## in which R f denotes C 1 -C 18 -perfluoroalkyl, it also being possible, for n>1, for the radicals R f to be different, A denotes C 2 -C 8 -alkylene, which can be straight-chain or branched, R denotes C 1 -C 8 alkyl, it also being possible, for p>1, for the radicals R to be different, m denotes a number from 1 to 10, n denotes a number from 1 to m, p denotes a number from 0 to m+2 and q denotes a number from 0 to m+2, and in which the sum of n+p+q is m+3, with alkylene oxides, can be used as wetting agents, emulsifiers and dispersing agents and as agents for rendering paper, leather and textiles oleophobic.

Inventors

  • 👤 Gunther Reitz
  • 👤 Gunther Boehmke

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 09:13
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2639

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 108 words
Alkoxylated perfluoroalkanesulphonamide of the formula ##STR6## and its quaternization product wherein R f is C 1 -C 18 perfluoralkyl; A is C 2 -C 8 -alkylene; R is C 1 -C 8 -alkyl; T is hydrogen or methyl; m is a number from 2 to 10; n is a number from 1 to m; p is a number from 0 to m+2; r is a number from 0 to m+1; s is a number from 2 to 50; t is a number from 1 to m+2; and the sum of n+p+r+t is m+3 when the compound is not quaternized and is 2 m+3 when the compound is quaternized.
Claim 2
Dependent Claim 108 words
Alkoxylated perfluoroalkanesulphonamide of the formula ##STR6## and its quaternization product wherein R f is C 1 -C 18 perfluoralkyl; A is C 2 -C 8 -alkylene; R is C 1 -C 8 -alkyl; T is hydrogen or methyl; m is a number from 2 to 10; n is a number from 1 to m; p is a number from 0 to m+2; r is a number from 0 to m+1; s is a number from 2 to 50; t is a number from 1 to m+2; and the sum of n+p+r+t is m+3 when the compound is not quaternized and is 2 m+3 when the compound is quaternized.
Claim 3
Dependent Claim 59 words
The compound of claim 1 wherein R f is C 4 -C 12 -perfluoroalkyl; A is ethylene, 1,2-propylene, or 1,3-propylene; R is C 1 -C 4 -alkyl; m is a number from 2 to 5; n is a number from 1 to 3; p is the number 0 or 1; and s is a number from 2 to 20.
Claim 4
Dependent Claim 24 words
The compound of claim 2 wherein R f is C 4 F 9 -- or C 8 F 17 --; and R is methyl.
Claim 5
Dependent Claim 78 words
The compound of claim 1 wherein R f is C 3 F 7 , C 4 F 9 , C 6 F 13 , C 8 F 17 , C 10 F 21 , or C 12 F 25 ; A is ethylene, 1,2-propylene, or 1,3-propylene; R is methyl; m is a number from 2 to 5; n is the number 1; p is the number 0 or 1; and s is a number from 2 to 20.

References Cited (Backward Citations)

US2915554A Cited
US3721706A Cited
GB1377303A Cited
US3829466A Cited
US3864396A Cited
DE2307377A1 Cited
DE2457754A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-11-19 1983-05-21 1983-11-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-11-19 1987-05-21 1987-11-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-11-19 1991-05-21 1991-11-20 $7700.00 Window Closed / Lapsed

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