US4749512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid laundry detergent composition
Assignee: Colgate Palmolive Co
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Filing: 1986-11-03
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Granted: 1988-06-07
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Expires: 2006-11-03
Abstract
Abstract A liquid heavy duty laundry detergent composition comprising a suspension of builder salt in liquid nonionic surfactant. To improve dispensibility in automatic washing machines, the composition contains also a nonionic surfactant which has been modified to convert a free OH group thereof to a moiety having a COOH group, e.g., by reaction withh succinic anhydride.
Inventors
- 👤 Guy Broze
- 👤 Danielle Bastin
- 👤 Leopold Laitem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:21
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/04; C11D1/06; C11D1/66; C11D1/83; C11D17/00; C11D17/0004; C11D3/00; C11D3/16; C11D3/20; C11D3/2075; C11D3/2089
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
89 words
A substantially non-aqueous liquid heavy duty laundry detergent composition comprising a suspension of builder salt in a liquid nonionic surfactant, said composition containing a polyether carboxylic acid in an amount effective to decrease the temperature at which said surfactant forms a gel with water, and in which the proportion of said polyether carboxylic acid is such as to provide about 0.5 to 10 parts of --COOH per 100 parts of the mixture of said polyether carboxylic acid, wherein an ester linkage attached to polyether group and said nonionic surfactant.
Claim 2
Dependent Claim
89 words
A substantially non-aqueous liquid heavy duty laundry detergent composition comprising a suspension of builder salt in a liquid nonionic surfactant, said composition containing a polyether carboxylic acid in an amount effective to decrease the temperature at which said surfactant forms a gel with water, and in which the proportion of said polyether carboxylic acid is such as to provide about 0.5 to 10 parts of --COOH per 100 parts of the mixture of said polyether carboxylic acid, wherein an ester linkage attached to polyether group and said nonionic surfactant.
Claim 3
Dependent Claim
24 words
A composition as in claim 1 in which said polyether carboxylic acid is soluble in said nonionic surfactant and said composition is substantially nonaqueous.
Claim 4
Dependent Claim
37 words
A composition as in claim 1 in which said polyether carboxylic acid contains a grouping of the formula ##STR2## where R 2 is hydrogen or methyl, Y is oxygen or sulfur and Z is an organic linkage.
Claim 5
Dependent Claim
24 words
A composition as in claim 1 in which said polyether carboxylic acid is a half ester of a dicarboxylic acid and a nonionic surfactant.
Claim 6
Dependent Claim
21 words
A composition as in claim 1 in which the particle size of the suspended builder salt is below about 10 microns.
Claim 7
Dependent Claim
95 words
A substantially non-aqueous liquid heavy duty laundry detergent composition comprising a suspension of a builder salt in a liquid nonionic surfactant, said composition containing also a compound comprising nonionic surfactant in which a hydrogen atom has been replaced by a group having a free COOH, said compound being present in an amount effective to decrease the temperature at which the nonionic surfactant forms a gel with water, said amount being such as to provide about 0.5 to 10 parts of --COOH per 100 parts of the mixture of said compound and said liquid nonionic surfactant.
Claim 8
Dependent Claim
95 words
A substantially non-aqueous liquid heavy duty laundry detergent composition comprising a suspension of a builder salt in a liquid nonionic surfactant, said composition containing also a compound comprising nonionic surfactant in which a hydrogen atom has been replaced by a group having a free COOH, said compound being present in an amount effective to decrease the temperature at which the nonionic surfactant forms a gel with water, said amount being such as to provide about 0.5 to 10 parts of --COOH per 100 parts of the mixture of said compound and said liquid nonionic surfactant.
Claim 9
Dependent Claim
22 words
A composition as in claim 6 in which said compound is a partial ester of a nonionic surfactant and a polycarboxylic acid.
Claim 10
Dependent Claim
14 words
A composition as in claim 7 in which said polycarboxylic acid is succinic acid.
Claim 11
Dependent Claim
23 words
A composition as in claim 7 in which said compound is a partial ester of a polycarboxylic acid and a polyethoxylated higher alkanol.
Claim 12
Dependent Claim
16 words
A composition as in claim 6 in which said builder salt is an alkali metal polyphosphate.
Claim 13
Dependent Claim
12 words
A composition as in claim 6 containing also suspended peroxygen bleaching agent.
Claim 14
Dependent Claim
19 words
A composition as in claim 11 in which said bleaching agent comprises sodium perborate monohydrate and an activator therefor.
Claim 15
Dependent Claim
14 words
A composition as in claim 11 in which said activator comprises tetraacetyl ethylene diamine.
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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) | 1991-06-07 | 1991-12-07 | 1992-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-07 | 1995-12-07 | 1996-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-07 | 1999-12-07 | 2000-06-07 | $7700.00 | Window Closed / Lapsed |