US4769169A
Expired / Lapsed
US
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Amphoteric surfactants for use in antimicrobial cleaning compositions
Assignee: Amphoterics International Ltd
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Filing: 1986-09-10
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Granted: 1988-09-06
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Expires: 2006-09-10
Abstract
Abstract An amphoteric surfactant of formula (I) <IMAGE> (I) where R is a C8-20 hydrocarbyl group, optionally substituted by hydroxyl or carboxyl; R1 is H or C1-6 alkyl; B is H or a group Q as defined below, B being a group Q in the majority of instances; Q is -R2COOM where R2 is C1-6 alkylene and M is -H or an alkali metal, alkaline earth metal, ammonium or substituted ammonium ion; x is 2 or 3; y is 2 to 4; and n is 0 or 1. for use as an antimicrobial agent is cleaning compositions.
Inventors
- 👤 Eric G. Fishlock-Lomax
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:06
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/88; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/45; A61Q; A61Q17/00; A61Q17/005; A61Q5/00; A61Q5/006; A61Q5/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
114 words
A method of anti-microbial cleaning which comprises applying to a body or object to be cleaned a microbicidally effective amount of an amphoteric surfactant of formula (I) ##STR4## where R is a C 8-20 hydrocarbyl group, optionally substituted by hydroxyl or carboxyl; R 1 is H or C 1-6 alkyl; B is H or a group Q as defined below, B being a group Q in the majority of instances; Q is --R 2 COOM, where R 2 is C 1-6 alkylene and M is --H or an alkali metal, alkaline earth metal, ammonium or substituted ammonium ion; x is 2 or 3; y is 2 to 4; and n is 0 or 1.
Claim 2
Independent Claim
114 words
A method of anti-microbial cleaning which comprises applying to a body or object to be cleaned a microbicidally effective amount of an amphoteric surfactant of formula (I) ##STR4## where R is a C 8-20 hydrocarbyl group, optionally substituted by hydroxyl or carboxyl; R 1 is H or C 1-6 alkyl; B is H or a group Q as defined below, B being a group Q in the majority of instances; Q is --R 2 COOM, where R 2 is C 1-6 alkylene and M is --H or an alkali metal, alkaline earth metal, ammonium or substituted ammonium ion; x is 2 or 3; y is 2 to 4; and n is 0 or 1.
Claim 3
Dependent Claim
21 words
A method according to claim 1 wherein the amphoteric surfactant has a formula (II) ##STR5## where y is 3 or 4.
Claim 4
Dependent Claim
24 words
A method according to claim 1 wherein the group R of the surfactant is a hydrocarbyl group derived from oleic or tallow fatty acids.
Claim 5
Dependent Claim
24 words
A method according to claim 1 comprising applying a microbicidally effective amount of said surfactant to the human head in the treatment of dandruff.
Claim 6
Dependent Claim
26 words
A method according to claim 2, wherein the surfactant comprises a surfactant of formula (II): ##STR6## and at least one surfactant having the formula (II): ##STR7##
References Cited (Backward Citations)
US4061602A
Cited
US4292212A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-06 | 1992-03-07 | 1992-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-06 | 1996-03-07 | 1996-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-06 | 2000-03-07 | 2000-09-06 | $7700.00 | Window Closed / Lapsed |