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US4165334A Expired / Lapsed US ⏱️ 0.0 years remaining

Detergent compounds and compositions

Assignee: Procter and Gamble Co
•
Filing: 1977-06-07
•
Granted: 1979-08-21
•
Expires: 1997-06-07
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Abstract

Abstract Compounds of the formula ##STR1## wherein R 1 and R 2 are each straight chain, branched chain or cyclic alkyl, alkenyl, aryl, aralkyl or alkaryl moieties having from 1-30 carbon atoms; R 3 is a C 2 -C 8 alkylene, alkenylene, arylene or alkarylene moiety; R 4 is a C 1 -C 8 alkylene, alkenylene, arylene or alkarylene moiety; A is a water-solubilizing anionic moiety; and n is from 1 to about 100 are useful as surfactants. Compounds wherein groups R 1 , R 2 and R 3 and integer n are selectively chosen provide good clay soil detergency performance even in the absence of builders. The compounds are usefully combined with other organic surfactants to provide detergent compositions having good clay and oily soil removal performance.

Inventors

  • 👤 Eugene P. Gosselink
  • 👤 James M. Richmond
  • 👤 George E. Wentler

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 22:22
CPC Classifications
C; C07; C07C; C07C381/00; C07C381/12; C07C323/00; C07C323/10; C07C323/11; C07C323/12; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/12; C07C43/126; C11; C11D; C11D1/00; C11D1/88

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 64 words
A detersive compound of the formula ##STR14## wherein R 1 and R 2 are each straight chain, branched chain or cyclic alkyl, alkenyl, aryl, aralkyl or alkaryl moieties having from 1-30 carbon atoms; R 3 is a C 2 -C 8 alkylene; R 4 is a C 1 -C 8 alkylene; A is a sulfate moiety; and n is from 1 to about 100.
Claim 2
Dependent Claim 64 words
A detersive compound of the formula ##STR14## wherein R 1 and R 2 are each straight chain, branched chain or cyclic alkyl, alkenyl, aryl, aralkyl or alkaryl moieties having from 1-30 carbon atoms; R 3 is a C 2 -C 8 alkylene; R 4 is a C 1 -C 8 alkylene; A is a sulfate moiety; and n is from 1 to about 100.
Claim 3
Dependent Claim 62 words
A compound according to claim 1 wherein R 1 is a straight chain or branched chain C 10 -C 30 alkyl moiety or an alkaryl moiety having a C 6 -C 26 alkyl group and R 2 is a C 1 -C 4 alkyl moiety or is an alkaryl or aralkyl moiety having 1 to 4 carbon atoms in the alkyl moiety.
Claim 4
Dependent Claim 53 words
A compound according to claim 2 wherein R 1 is a C 12 -C 22 alkyl moiety; R 2 is a C 1 -C 3 alkyl moiety, or a benzyl moiety; R 3 is a C 2 -C 4 alkylene moiety and R 4 is ethylene; and n is from 4 to 50.
Claim 5
Dependent Claim 24 words
A compound according to claim 1 wherein R 1 is C 18 alkyl, R 2 is methyl, and n is from 4 to 20.
Claim 6
Dependent Claim 33 words
A compound according to claim 1 wherein R 1 and R 2 are each independently selected from C 6 -C 22 alkyl moieties and alkaryl moieties having C 6 -C 18 alkyl groups.
Claim 7
Dependent Claim 20 words
A compound according to claim 5 wherein R 1 and R 2 are each C 8 -C 18 alkyl moieties.
Claim 8
Dependent Claim 29 words
A compound according to claim 5 wherein R 3 is a C 2 -C 4 alkylene moiety and R 4 is ethylene and n is from 4 to 50.

References Cited (Backward Citations)

US2813898A Cited
US3184477A Cited
US3925262A Cited
US3929678A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-08-20 1983-02-19 1983-08-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-08-20 1987-02-19 1987-08-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-08-20 1991-02-19 1991-08-21 $7700.00 Window Closed / Lapsed

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