US4088598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low sudsing detergent compositions
Assignee: Procter and Gamble Co
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Filing: 1975-10-10
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Granted: 1978-05-09
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Expires: 1995-10-10
Abstract
Abstract The invention relates to novel suds-depressants and to detergent compositions containing them.
Inventors
- 👤 Michael K. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:14
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/38; C11D1/62; C11D1/002; C11D1/42; C11D1/44; C11D1/66; C11D1/74; C11D1/78; C11D3/00; C11D3/0005; C11D3/0026
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
95 words
A detergent composition consisting essentially of (a) from 0.5% to 95% by weight of a nonionic detergent and (b) suds-depressing surface-active agent having the general formula RO(C n H 2n O) x --COR 3 , in which R is an alkyl group comprising 8 to 20 carbon atoms, n is 2, 3 or 4, x represents the average degree of alkoxylation and is from 0.5 to 7 and R 3 represents an alkyl or alkenyl group having one to nine carbon atoms, the weight ratio of (b) to (a) being at least 1 to 12.
Claim 2
Dependent Claim
95 words
A detergent composition consisting essentially of (a) from 0.5% to 95% by weight of a nonionic detergent and (b) suds-depressing surface-active agent having the general formula RO(C n H 2n O) x --COR 3 , in which R is an alkyl group comprising 8 to 20 carbon atoms, n is 2, 3 or 4, x represents the average degree of alkoxylation and is from 0.5 to 7 and R 3 represents an alkyl or alkenyl group having one to nine carbon atoms, the weight ratio of (b) to (a) being at least 1 to 12.
Claim 3
Dependent Claim
65 words
A detergent composition according to claim 1 and additionally comprising from about 5% to about 90% by weight of a detergency builder salt selected from the group consisting of alkali metal salts of polyphosphate, carbonate, silicate, citrate, oxydisuccinate, carboxymethyloxysuccinate, benzene tetra, penta or hexacarboxylate, benzene 1,3,5-tricarboxylate, 1,3,5-hydroxybenzene-2,4,6-trisulfonate, nitrilotriacetate, an alumino silicate of formula Na 12 (AlO 2 .SiO 2 ).27H 2 O, and mixtures thereof.
Claim 4
Dependent Claim
29 words
A detergent composition according to claim 1 wherein the suds-depressing surface active agent comprises at least 2% by weight thereof alkoxylated components having HLB values of less than 7.5.
Claim 5
Dependent Claim
25 words
A detergent composition according to claim 3 in which at least 4.5% of the suds-depressing agent is alkoxylated with an HLB of less than 7.5.
Claim 6
Dependent Claim
25 words
A detergent composition according to claim 4 in which at least 15% of the suds-depressing agent is alkoxylated with an HLB of less than 7.5.
Claim 7
Dependent Claim
15 words
A detergent composition according to claim 5 in which x is from 1 to 5.
Claim 8
Dependent Claim
18 words
A detergent composition according to claim 6 in which the polyalkylene oxide moiety is a polyethylene oxide chain.
Claim 9
Dependent Claim
27 words
A detergent composition according to claim 7 in which the weight ratio of suds-depressing surface active agent (b) to detergent (a) is at least 1 to 6.
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) | 1981-05-08 | 1981-11-07 | 1982-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-08 | 1985-11-07 | 1986-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-08 | 1989-11-07 | 1990-05-09 | $7700.00 | Window Closed / Lapsed |