US4261869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent compositions
Assignee: Lever Brothers Co
•
Filing: 1979-05-29
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Granted: 1981-04-14
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Expires: 1999-05-29
Abstract
Abstract The incorporation of small amounts of cationic surfactant and zwitterionic or semipolar detergent in a polyoxyalkylene nonionic detergent suppresses dye transfer in the wash.
Inventors
- 👤 David P. Bishop
- 👤 Robert T. Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:09
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/88; C11D1/94; C11D3/00; C11D3/0005; C11D3/0021; C11D1/02; C11D1/12; C11D1/22; C11D1/38; C11D1/62; C11D1/66; C11D1/72; C11D1/75; C11D1/92
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
78 words
A solid detergent composition comprising: (i) a polyoxyalkylene nonionic detergent A in the form of an alkyleneoxide condensate of an aliphatic alcohol; (ii) a sulpho-betaine zwitterionic detergent B; and (iii) a cationic surfactant C, in the amounts of from 75% to 89.6% of A and from 6.4% to 24.5% of B by weight based on the total weight of A, B and C, and from 0.5% to 5.81% of C by weight based on the weight of A.
Claim 2
Dependent Claim
78 words
A solid detergent composition comprising: (i) a polyoxyalkylene nonionic detergent A in the form of an alkyleneoxide condensate of an aliphatic alcohol; (ii) a sulpho-betaine zwitterionic detergent B; and (iii) a cationic surfactant C, in the amounts of from 75% to 89.6% of A and from 6.4% to 24.5% of B by weight based on the total weight of A, B and C, and from 0.5% to 5.81% of C by weight based on the weight of A.
Claim 3
Dependent Claim
28 words
A composition according to claim 1, in which the amount of B is from 6.4% to 20% by weight based on the weight of A, B and C.
Claim 4
Dependent Claim
28 words
A composition according to claim 2, in which the amount of B is from 6.4% to 15% by weight based on the weight of A, B and C.
Claim 5
Dependent Claim
25 words
A composition according to claim 1, in which the amount of C is from 2.0% to 5.5% by weight based on the weight of A.
Claim 6
Dependent Claim
23 words
A composition according to claim 1, further containing from 0 to 30% by weight of water based on the weight of the composition.
Claim 7
Dependent Claim
24 words
A composition according to claim 1, further containing from 10% to 90% by weight of detergency builder based on the weight of the composition.
Claim 8
Dependent Claim
43 words
A composition according to claim 1, in which the polyoxyalkylene nonionic detergent A is an ethoxylated linear primary or secondary monohydric alcohol containing an alkyl group having from 8 to 20 carbon atoms and containing from 7 to 20 ethenoxy units per molecule.
Claim 9
Dependent Claim
17 words
A composition according to claim 1, in which the cationic surfactant C is a quaternary ammonium salt.
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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) | 1984-04-13 | 1984-10-13 | 1985-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-13 | 1988-10-13 | 1989-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-13 | 1992-10-13 | 1993-04-14 | $7700.00 | Window Closed / Lapsed |