US4088612A
Expired / Lapsed
US
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Detergent compositions
Assignee: Lever Brothers Co
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Filing: 1977-01-04
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Granted: 1978-05-09
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Expires: 1997-01-04
Abstract
Abstract A detergent composition comprising a sulphobetaine, which can be prepared by reaction between a sultone and a tertiary amine, and an anionic detergent active compound in a molar ratio of at least 1 part to 2 parts, respectively. The compositions are effective in the absence of a detergency builder.
Inventors
- 👤 Malcolm N. A. Carter
- 👤 Brian McGhee
- 👤 John F. Helliwell
- 👤 John K. Marshall
- 👤 Appayya R. Naik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:11
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/88; C11D1/94; C11D1/92; C11D1/02; C11D1/12; C11D1/14; C11D1/143; C11D1/146; C11D1/22
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
135 words
A foam-forming detergent composition comprising (a) at least one water soluble sulphobetaine having the structural formula: ##STR4## wherein R 1 is an alkyl group containing from 8 to 16 carbon atoms, R 6 is selected from the group consisting of a hydrogen atom and a methyl group and n is an interger of at least 1 and not more than 2, and (b) at least one anionic detergent active surfactant selected from the group consisting of C 8 -C 16 alkyl sulphonates, and C 10 -C 16 alkyl sulphates, the molar ratio of the amount of the sulphobetaine to that of the anionic surfactant being from about 3:2 to 2:3 and wherein the total amount of sulphobetaine and anionic detergent active surfactant is in the range of from about 10 to about 50% by weight.
Claim 2
Dependent Claim
135 words
A foam-forming detergent composition comprising (a) at least one water soluble sulphobetaine having the structural formula: ##STR4## wherein R 1 is an alkyl group containing from 8 to 16 carbon atoms, R 6 is selected from the group consisting of a hydrogen atom and a methyl group and n is an interger of at least 1 and not more than 2, and (b) at least one anionic detergent active surfactant selected from the group consisting of C 8 -C 16 alkyl sulphonates, and C 10 -C 16 alkyl sulphates, the molar ratio of the amount of the sulphobetaine to that of the anionic surfactant being from about 3:2 to 2:3 and wherein the total amount of sulphobetaine and anionic detergent active surfactant is in the range of from about 10 to about 50% by weight.
Claim 3
Dependent Claim
19 words
A composition according to claim 1, wherein the anionic detergent active is a C 8 -C 16 alkyl sulphonate.
Claim 4
Dependent Claim
19 words
A composition according to claim 1, wherein the anionic detergent active is a C 10 -C 16 alkyl sulphate.
Claim 5
Dependent Claim
10 words
The composition of claim 4 wherein R 6 is hydrogen.
Claim 6
Dependent Claim
10 words
The composition of claim 1 wherein R 6 is methyl.
Claim 7
Dependent Claim
13 words
The composition of claim 1 wherein the sulphobetaine is a hexadecyl pyridino sulphobetaine.
Claim 8
Dependent Claim
13 words
The composition of claim 1 wherein the sulphobetaine is a tetradecyl pyridino sulphobetaine.
Claim 9
Dependent Claim
13 words
The composition of claim 1 wherein the sulphobetaine is a dodecyl pyridino sulphobetaine.
Claim 10
Dependent Claim
13 words
The composition of claim 1 wherein the sulphobetaine is a hexadecyl α-picolino sulphobetaine.
Claim 11
Dependent Claim
13 words
The composition of claim 1 wherein the sulphobetaine is a hexadecyl β-picolino sulphobetaine.
Claim 12
Dependent Claim
13 words
The composition of claim 1 wherein the sulphobetaine is a hexadecyl γ-picolino sulphobetaine.
Claim 13
Dependent Claim
13 words
The composition of claim 1 wherein the sulphobetaine is a tetradecyl α-picolino sulphobetaine.
Claim 14
Dependent Claim
25 words
A composition according to claim 1 comprising an amount of the sulphobetaine in the range of from about 10 to about 35 percent by weight.
Claim 15
Dependent Claim
15 words
A composition according to claim 1 in the form of an aqueous liquid detergent composition.
Claim 16
Dependent Claim
27 words
A composition according to claim 1, wherein the molar ratio of the amount of the sulphobetaine to that of the anionic detergent active surfactant is about 1:1.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-08 | 1981-11-07 | 1982-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-08 | 1985-11-07 | 1986-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-08 | 1989-11-07 | 1990-05-09 | $7700.00 | Window Closed / Lapsed |