US4239641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of polyhydric alcohols, carboxylic acids, hydroxy-carboxylic acids and/or their esters with polyhydric alcohols as viscosity regulators
Assignee: BASF SE
•
Filing: 1979-07-23
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Granted: 1980-12-16
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Expires: 1999-07-23
Abstract
Abstract A method for regulating the viscosity of aqueous detergent and cleanser slurries, in which there are added to the slurries, as viscosity regulators, dihydric, trihydric or tetrahydric aliphatic alcohols, monobasic aliphatic carboxylic acids, hydroxycarboxylic acids, esters of the said alcohols and the said acids or mixtures of these, in which compounds the alcohols, carboxylic acids and hydroxycarboxylic acids, and the individual components of the esters, are of 5 to 9 carbon atoms, of which one is a quaternary atom, the alcohols and hydroxycarboxylic acids carry exclusively primary alcohol groups, and the carboxylic acids and hydroxycarboxylic acids have the carboxyl group bonded to the quaternary carbon atom.
Inventors
- 👤 Johannes Perner
- 👤 Paul Diessel
- 👤 Dieter Stoeckigt
- 👤 Franz Merger
- 👤 Juergen Paetsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:53
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2093; C11D3/2003; C11D3/2065; C11D3/2075; C11D3/2086; C11D3/2041; C11D3/2044
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
144 words
A method for regulating the viscosity of aqueous slurries of detergents and cleansers, wherein there are added to the slurries, as viscosity regulators, dihydric, trihydric or tetrahydric aliphatic alcohols, monobasic aliphatic carboxylic acids, hydroxycarboxylic acids, esters of the said alcohols and the said acids or mixtures of these, in which compounds the alcohols, carboxylic acids and hydroxycarboxylic acids, and the individual components of the esters, are of 5 to 9 carbon atoms, of which one is a quaternary atom, the alcohols and hydroxycarboxylic acids carry exclusively primary alcohol groups, and the carboxylic acids and hydroxycarboxylic acids have the carboxyl group bonded to the quaternary carbon atom, the amount of said regulators being at least 1% by weight based on the solids content of the slurries, said regulators acting to reduce the viscosity of the slurries and to stabilize the slurries against fluctuations in viscosity.
Claim 2
Independent Claim
144 words
A method for regulating the viscosity of aqueous slurries of detergents and cleansers, wherein there are added to the slurries, as viscosity regulators, dihydric, trihydric or tetrahydric aliphatic alcohols, monobasic aliphatic carboxylic acids, hydroxycarboxylic acids, esters of the said alcohols and the said acids or mixtures of these, in which compounds the alcohols, carboxylic acids and hydroxycarboxylic acids, and the individual components of the esters, are of 5 to 9 carbon atoms, of which one is a quaternary atom, the alcohols and hydroxycarboxylic acids carry exclusively primary alcohol groups, and the carboxylic acids and hydroxycarboxylic acids have the carboxyl group bonded to the quaternary carbon atom, the amount of said regulators being at least 1% by weight based on the solids content of the slurries, said regulators acting to reduce the viscosity of the slurries and to stabilize the slurries against fluctuations in viscosity.
Claim 3
Dependent Claim
21 words
The method of claim 1, wherein trimethylolpropane, neopentyl glycol, pentaerythritol or a mixture of these is employed as the polyhydric alcohol.
Claim 4
Dependent Claim
23 words
The method of claim 1 or 2, wherein pivalic acid, hydroxypivalic acid or a mixture of these is employed as the hydroxycarboxylic acid.
Claim 5
Dependent Claim
13 words
The method of claim 1, wherein neopentyl glycol hydroxypivalic acid ester is employed.
Claim 6
Dependent Claim
25 words
The method of claim 1, wherein from 1 to 6% by weight of regulators are added to the slurries, the percentage being based on solids.
Claim 7
Dependent Claim
19 words
The method of claim 5, wherein from 3 to 6% by weight of regulators are added to the slurries.
References Cited (Backward Citations)
US3415753A
Cited
US3554916A
Cited
US3741913A
Cited
US3692684A
Cited
US3893955A
Cited
US3915903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-16 | 1984-06-16 | 1984-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-16 | 1988-06-16 | 1988-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-16 | 1992-06-16 | 1992-12-16 | $7700.00 | Window Closed / Lapsed |