US4529525A
Expired / Lapsed
US
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Stabilized enzyme-containing detergent compositions
Assignee: Colgate Palmolive Co
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Filing: 1982-08-30
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Granted: 1985-07-16
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Expires: 2002-08-30
Abstract
Abstract A stabilized enzyme-containing liquid detergent composition is provided comprising a surfactant, calcium ion, and an enzyme which is stabilized with one or more salts of specified dicarboxylic acids. Soap is a preferred component of the detergent composition.
Inventors
- 👤 Marc Dormal
- 👤 Jacques Noiret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:46
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38663
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
167 words
A stabilized enzyme-containing liquid detergent composition comprising: (a) from about 5 to about 75%, by weight, of one or more non-soap detergent surface active agents selected from the group consisting of anionic, nonionic, cationic, ampholytic and zwitterionic detergent compounds; (b) a water soluble calcium salt in an amount sufficient to provide from about 0.1 to about 20 millimoles of calcium ion per liter of composition; (c) from about 0.05 to about 5%, by weight, of an enzyme selected from the group consisting of proteases, amylases and mixtures thereof; (d) from about 0.1 to about 10%, by weight, of a stabilizing agent comprising a ternary mixture from about 25% to 35% of succinic acid; from about 40 to 50% of glutaric acid; and from about 25 to 35% of adipic acid; (e) from about 0% to about 25%, by weight, of a soap comprising a water soluble salt of a saturated fatty acid having 10 to 18 carbon atoms in the alkyl chain; and (f) the balance water.
Claim 2
Dependent Claim
167 words
A stabilized enzyme-containing liquid detergent composition comprising: (a) from about 5 to about 75%, by weight, of one or more non-soap detergent surface active agents selected from the group consisting of anionic, nonionic, cationic, ampholytic and zwitterionic detergent compounds; (b) a water soluble calcium salt in an amount sufficient to provide from about 0.1 to about 20 millimoles of calcium ion per liter of composition; (c) from about 0.05 to about 5%, by weight, of an enzyme selected from the group consisting of proteases, amylases and mixtures thereof; (d) from about 0.1 to about 10%, by weight, of a stabilizing agent comprising a ternary mixture from about 25% to 35% of succinic acid; from about 40 to 50% of glutaric acid; and from about 25 to 35% of adipic acid; (e) from about 0% to about 25%, by weight, of a soap comprising a water soluble salt of a saturated fatty acid having 10 to 18 carbon atoms in the alkyl chain; and (f) the balance water.
Claim 3
Dependent Claim
20 words
The composition in accordance with claim 1 which contains from about 2 to about 20%, by weight, of said soap.
Claim 4
Dependent Claim
30 words
The composition in accordance with claim 1 wherein the soap additionally contains water soluble salts of unsaturated fatty acids having from 16 to 18 carbon atoms in the alkyl chain.
Claim 5
Dependent Claim
46 words
The composition in accordance with claim 3 which contains from about 10 to about 18%, by weight, of a soap comprising about 75%, by weight, of a water soluble salt of lauric acid and about 25%, by weight, of a water soluble salt of oleic acid.
Claim 6
Dependent Claim
19 words
The composition in accordance with claim 1 wherein the level of calcium ion is about 10 millimoles per liter.
Claim 7
Dependent Claim
25 words
The composition in accordance with claim 1 wherein the detergent surfactant is a mixture of a non-soap anionic detergent compound and a nonionic detergent compound.
Claim 8
Dependent Claim
20 words
The composition in accordance with claim 1 wherein the pH of the detergent composition is from about 8 to 11.
Claim 9
Dependent Claim
20 words
The composition in accordance with claim 1 which contains from about 0.1 to about 1% of an organic polyphosphonate sequestrant.
Claim 10
Dependent Claim
47 words
The composition in accordance with claim 1 which contains from about 2 to about 20%, by weight, of a solvent selected from the group consisting of a lower monoalcohol having 1 to 4 carbon atoms; a lower polyol having 2 to 3 carbon atoms and mixtures thereof.
Claim 11
Dependent Claim
18 words
The composition in accordance with claim 9 wherein said solvent is a mixture of ethanol and propylene glycol.
Claim 12
Dependent Claim
13 words
The composition in accordance with claim 1 which additionally contains a sequestering agent.
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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) | 1988-07-15 | 1989-01-14 | 1989-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-15 | 1993-01-14 | 1993-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-15 | 1997-01-14 | 1997-07-16 | $7700.00 | Window Closed / Lapsed |