US4082684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid detergent
Assignee: Lever Brothers Co
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Filing: 1976-04-28
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Granted: 1978-04-04
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Expires: 1996-04-28
Abstract
Abstract A stable aqueous built liquid detergent composition is prepared comprising a potassium alkylbenzenesulphonate, a potassium fatty acid soap, a nonionic detergent material, a neutralized maleic anhydride copolymer, partially esterified with a nonionic detergent active, and sodium-tripolyphosphate.
Inventors
- 👤 Pieter Hubertus Kreischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:11
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/06; C11D10/00; C11D10/04; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3765; C11D1/00; C11D1/02; C11D1/12; C11D1/14; C11D1/143; C11D1/66; C11D1/72
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
201 words
An aqueous, built, liquid detergent composition comprising: a. 3 to 12 percent of anionic detergent consisting potassium alkylbenzenesulphonate wherein the alkyl is a 10 to 18 carbon, branched or straight alkyl chain; b. 2 to 8 percent of soap consisting of a potassium salt of a fatty acid derived from an 8 to 22 carbon saturated or unsaturated fatty acid or polymer thereof; c. 0.5 to 5 percent of nonionic detergent consisting of an alkyleneoxide condensation product of an organic hydrophobic radical; d. 0.1 to 2 percent of copolymer consisting of the copolymer of maleic anhydride with a compound selected from the group consisting of vinyl methyl ether, ethylene, and styrene, wherein said copolymer has a specific viscosity of 0.1 to 4.5 as a one percent weight/volume solution of said copolymer in methylethylketone at 25° C.; and e. 1 to 25 percent of detergent builder consisting of an alkali metal tripolyphosphate wherein said alkali metal is selected from the group consisting of sodium and potassium; and wherein at least 50 percent of said builder is sodium tripolyphosphate; wherein said copolymer has been partially esterified with 2 to 250 percent, by weight of said copolymer, of said nonionic detergent and subsequently neutralized.
Claim 2
Dependent Claim
201 words
An aqueous, built, liquid detergent composition comprising: a. 3 to 12 percent of anionic detergent consisting potassium alkylbenzenesulphonate wherein the alkyl is a 10 to 18 carbon, branched or straight alkyl chain; b. 2 to 8 percent of soap consisting of a potassium salt of a fatty acid derived from an 8 to 22 carbon saturated or unsaturated fatty acid or polymer thereof; c. 0.5 to 5 percent of nonionic detergent consisting of an alkyleneoxide condensation product of an organic hydrophobic radical; d. 0.1 to 2 percent of copolymer consisting of the copolymer of maleic anhydride with a compound selected from the group consisting of vinyl methyl ether, ethylene, and styrene, wherein said copolymer has a specific viscosity of 0.1 to 4.5 as a one percent weight/volume solution of said copolymer in methylethylketone at 25° C.; and e. 1 to 25 percent of detergent builder consisting of an alkali metal tripolyphosphate wherein said alkali metal is selected from the group consisting of sodium and potassium; and wherein at least 50 percent of said builder is sodium tripolyphosphate; wherein said copolymer has been partially esterified with 2 to 250 percent, by weight of said copolymer, of said nonionic detergent and subsequently neutralized.
Claim 3
Dependent Claim
83 words
A composition according to claim 1 wherein: a. said anionic is present at a level of 6 to 8 percent by weight; b. said soap is present at a level of 3 to 6 percent by weight; c. said nonionic is present at a level of 2 to 4 percent by weight; d. said copolymer is present at a level of 0.3 to 1.5 percent by weight; and e. said builder is present at a level of 15 to 20 percent by weight.
Claim 4
Dependent Claim
17 words
A composition according to claim 1 wherein said soap is a potassium soap of dimerized oleic acid.
Claim 5
Dependent Claim
28 words
A composition according to claim 1, wherein said copolymer is the copolymer of maleic anhydride with vinylmethylether, and wherein said viscosity of said copolymer is 0.1 to 0.5.
Claim 6
Dependent Claim
33 words
A process for preparing a composition according to claim 1, comprising: 1. dissolving part of the nonionic detergent active material in sufficient water while heating, 2. adding the copolymer to the resulting solution,
Claim 7
Dependent Claim
41 words
adding an excess of potassium hydroxide to the solution, 4. adding the alkylbenzene sulphonic acid and the fatty acid or polymer thereof to the resulting solution, 5. adding the balance of the nonionic detergent active material, 6. subsequently adding the sodiumtripolyphosphate.
Claim 8
Dependent Claim
41 words
adding an excess of potassium hydroxide to the solution, 4. adding the alkylbenzene sulphonic acid and the fatty acid or polymer thereof to the resulting solution, 5. adding the balance of the nonionic detergent active material, 6. subsequently adding the sodiumtripolyphosphate.
Claim 9
Dependent Claim
17 words
A process according to claim 5, wherein an alkalimetal silicate is added after the addition of sodiumtripolyphosphate.
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) | 1981-04-03 | 1981-10-03 | 1982-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-03 | 1985-10-03 | 1986-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-03 | 1989-10-03 | 1990-04-04 | $7700.00 | Window Closed / Lapsed |