Patent US4018696A successfully refreshed from Google Patents.
US4018696A
Expired / Lapsed
US
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Liquid detergent composition
Assignee: Nouryon Surface Chemistry AB
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Filing: 1975-11-20
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Granted: 1977-04-19
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Expires: 1995-11-20
Abstract
Abstract A liquid aqueous detergent composition is provided which contains a surface active portion, and a complexing agent, as well as, if desired, other components customarily included in detergent compositions, characterized in that the surface active portion mainly contains A. 30-70% OF A SURFACE ACTIVE NONIONIC ALKYLENE OXIDE ADDUCT HAVING THE FORMULA RO(A)xH where R represents a hydrocarbon group of 8-24 carbon atoms, each A represents independently an oxyalkylene group derived from an alkylene oxide with 2-4 carbon atoms, x represents an integer from 5-50, the number of from ethylene oxide derived oxyalkylene groups being at least 60% of the total number of oxyalkylene groups; and B. 30-70% OF A SURFACE ACTIVE PHOSPHORIC ACID ESTER HAVING THE COMMON FORMULA (R'O)yPO(OM)3-y WHERE R' is a straight or branched alkyl chain with 9-11 carbon atoms, y is an integer of 1 or 2 and M represents a monovalent cation.
Inventors
- 👤 Karl Martin Edvin Hellsten
- 👤 Birgit Tora Gunvor Karlsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:28
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/83; C11D1/02; C11D1/34; C11D1/345; C11D1/72; C11D3/00; C11D3/16; C11D3/36; C11D3/362
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
187 words
A liquid aqueous detergent composition consisting essentially of an amount within the range from about 0.5 to about 35% by weight of the composition of a surfactant and an amount within the range from about 10 to about 25% of a complexing agent the surfactant comprising a. an amount within the range from about 30 to about 70% of a surface active nonionic alkylene oxide adduct having the formula RO(A).sub.x H where R represents a hydrocarbon group having from about eight to about twenty four carbon atoms, each A is an oxyalkylene group derived from an alkylene oxide having from about two to about four carbon atoms, x represents the number of A groups and is a number within the range from about 5 about 50 the number of oxyethylene groups being at least 60% of the total number of oxyalkylene groups; and b. from about 30 to about 70% of a surface active phosphoric acid ester having the formula (R'O).sub.y PO(OM).sub.3.sub.-y where R' is alkyl having from nine to eleven carbon atoms, y is an integer of 1 or 2 and M is a monovalent cation.
Claim 2
Dependent Claim
187 words
A liquid aqueous detergent composition consisting essentially of an amount within the range from about 0.5 to about 35% by weight of the composition of a surfactant and an amount within the range from about 10 to about 25% of a complexing agent the surfactant comprising a. an amount within the range from about 30 to about 70% of a surface active nonionic alkylene oxide adduct having the formula RO(A).sub.x H where R represents a hydrocarbon group having from about eight to about twenty four carbon atoms, each A is an oxyalkylene group derived from an alkylene oxide having from about two to about four carbon atoms, x represents the number of A groups and is a number within the range from about 5 about 50 the number of oxyethylene groups being at least 60% of the total number of oxyalkylene groups; and b. from about 30 to about 70% of a surface active phosphoric acid ester having the formula (R'O).sub.y PO(OM).sub.3.sub.-y where R' is alkyl having from nine to eleven carbon atoms, y is an integer of 1 or 2 and M is a monovalent cation.
Claim 3
Dependent Claim
44 words
A detergent composition according to claim 1, wherein R is selected from the group consisting of aliphatic and cycloaliphatic group having from about eight to about twenty-four carbon atoms and alkyl phenyl and dialkyl phenyl having from about fourteen to about twenty-four carbon atoms.
Claim 4
Dependent Claim
27 words
A detergent composition according to claim 1 wherein A represents an oxyethylene group and x is a number within the range from about 5 to about 20.
Claim 5
Dependent Claim
23 words
A detergent composition according to claim 1 wherein the phosphoric acid ester to at least 50% by weight is composed of monoalkyl phosphate.
Claim 6
Dependent Claim
24 words
A detergent composition according to claim 1 wherein the amount of surfactant is within the range from about 2 to about 20% by weight.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-18 | 1980-10-18 | 1981-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-18 | 1984-10-18 | 1985-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-18 | 1988-10-18 | 1989-04-19 | $7700.00 | Window Closed / Lapsed |