Patent US5229028A successfully refreshed from Google Patents.
US5229028A
Expired / Lapsed
US
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Liquid detergent compositions
Assignee: Procter and Gamble Co
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Filing: 1991-09-12
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Granted: 1993-07-20
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Expires: 2011-09-12
Abstract
Abstract Stable aqueous liquid detergent compositions are disclosed which comprise surfactants and a builder system comprising a major amount of citrate and a minor amount of C 10 -C 16 alkyl or alkenyl substituted succinic acid.
Inventors
- 👤 Jean-Pol Boutique
- 👤 Karel J. M. Depoot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:43
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2075; C11D3/2086; C11D3/2082
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
102 words
A phase-stable, aqueous liquid detergent composition comprising from 5% to 40% by weight of the total composition of a surfactant system, and a builder system, wherein the builder system comprises from 8% to 20% by weight of the total composition of citric acid, and from 1 to 6% by weight of the total composition of C 10 -C 16 alkyl or alkenyl substituted succinic acid, and wherein the eight ratio of citric acid to C 10 -C 16 alkyl or alkenyl substituted succinic acid is from 1.2:1 to 10:1 and wherein the composition has a building capacity of at least about 5.96.
Claim 2
Dependent Claim
102 words
A phase-stable, aqueous liquid detergent composition comprising from 5% to 40% by weight of the total composition of a surfactant system, and a builder system, wherein the builder system comprises from 8% to 20% by weight of the total composition of citric acid, and from 1 to 6% by weight of the total composition of C 10 -C 16 alkyl or alkenyl substituted succinic acid, and wherein the eight ratio of citric acid to C 10 -C 16 alkyl or alkenyl substituted succinic acid is from 1.2:1 to 10:1 and wherein the composition has a building capacity of at least about 5.96.
Claim 3
Dependent Claim
79 words
A detergent composition according to claim 1 which comprises from 10% to 30% by weight of the total composition of a surfactant system, from 8% to 14% by weight of the total composition of citric acid and from 2% to 6% by weight of a C 10 -C 16 alkyl or alkenyl substituted succinic acid, wherein the weight ratio of citric acid to C 10 -C 16 alkyl or alkenyl substituted succinic acid is of from 1.5:1 to 6:1.
Claim 4
Dependent Claim
33 words
A composition according to claim 1 wherein the weight ratio of citric acid to C 10 -C 16 alkyl or alkenyl substituted succinic acid is in the range of from 1.8:1 to 2.5:1.
Claim 5
Dependent Claim
21 words
A composition according to claim 1 wherein the substituted succinic acid is a C 12 -C 14 alkenyl substituted succinic acid.
Claim 6
Dependent Claim
25 words
A composition according to claim 1 wherein the surfactant system consists of a mixture of C 12 -C 15 alkyl sulphate and ethoxylated nonionic surfactant.
Claim 7
Dependent Claim
33 words
A composition according to claim 2 wherein the weight ratio of citric acid to C 10 -C 16 alkyl or alkenyl substituted succinic acid is in the range of from 1.8:1 to 2.5:1.
Claim 8
Dependent Claim
21 words
A composition according to claim 2 wherein the substituted succinic acid is a C 12 -C 14 alkenyl substituted succinic acid.
Claim 9
Dependent Claim
25 words
A composition according to claim 2 wherein the surfactant system consists of a mixture of C 12 -C 15 alkyl sulphate and ethoxylated nonionic surfactant.
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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) | 1996-07-19 | 1997-01-18 | 1997-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-19 | 2001-01-18 | 2001-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-19 | 2005-01-18 | 2005-07-20 | $7700.00 | Window Closed / Lapsed |