US4235758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clear liquid detergent composition containing MgABS and alkyl polyether sulphates
Assignee: Lever Brothers Co
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Filing: 1978-12-21
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Granted: 1980-11-25
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Expires: 1998-12-21
Abstract
Abstract A clear and stable concentrated liquid detergent composition which is effective especially for dishwashing in both hard and soft waters containing as active detergent component a mixture of: (a) a magnesium alkylbenzene sulphonate derived from a linear C 10 -C 13 alkylbenzene having an average molecular weight of from 220-250 and containing at least 3.5% by weight of dialkyl tetralin, and (b) an alkali metal, ammonium or amine alkyl polyether sulphate and/or a nonionic surfactant. The liquid detergent composition has a clear point of below 20° C. and is exceptionally low temperature stable.
Inventors
- 👤 Peter L. Dawson
- 👤 Edwin Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:08
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/22; C11D1/37; C11D1/66; C11D1/83; C11D1/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
A clear, stable liquid detergent composition having a clear point below 20° C. consisting of: a. 35 to 55 percent by weight of said composition of a detergent mixture consisting of: (i) a magnesium alkylbenzene sulphonate derived from a linear C 10 -C 13 alkylbenzene having an average molecular weight of from 225 to 245 and containing at least 4 percent by weight of said sulphonate of dialkyl tetraline, and (ii) an alkali metal, ammonium or amine alkyl polyethersulphate having the general formula R--(C.sub.2 H.sub.4 O).sub.n --OSO.sub.3 M where R is an alkyl group of 10 to 18 carbon, n is an integer from 1 to 8, and M is an alkali metal, ammonium or amine cation wherein said magnesium alkylbenzene sulphonate and said alkyl polyethersulphate are present in a ratio of 1:1 to 5:1, b. 0 to 12 percent by weight of said composition of a hydrotrope selected from the group consisting of lower alcohols having 2 to 4 carbon atoms, urea, and mixtures thereof; and c. water.
Claim 2
Dependent Claim
169 words
A clear, stable liquid detergent composition having a clear point below 20° C. consisting of: a. 35 to 55 percent by weight of said composition of a detergent mixture consisting of: (i) a magnesium alkylbenzene sulphonate derived from a linear C 10 -C 13 alkylbenzene having an average molecular weight of from 225 to 245 and containing at least 4 percent by weight of said sulphonate of dialkyl tetraline, and (ii) an alkali metal, ammonium or amine alkyl polyethersulphate having the general formula R--(C.sub.2 H.sub.4 O).sub.n --OSO.sub.3 M where R is an alkyl group of 10 to 18 carbon, n is an integer from 1 to 8, and M is an alkali metal, ammonium or amine cation wherein said magnesium alkylbenzene sulphonate and said alkyl polyethersulphate are present in a ratio of 1:1 to 5:1, b. 0 to 12 percent by weight of said composition of a hydrotrope selected from the group consisting of lower alcohols having 2 to 4 carbon atoms, urea, and mixtures thereof; and c. water.
References Cited (Backward Citations)
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US3332876A
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US3816354A
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US4129515A
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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) | 1983-11-25 | 1984-05-26 | 1984-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-25 | 1988-05-26 | 1988-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-25 | 1992-05-26 | 1992-11-25 | $7700.00 | Window Closed / Lapsed |