US4248729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergency booster
Assignee: Diversey Corp Canada
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Filing: 1978-12-13
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Granted: 1981-02-03
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Expires: 1998-12-13
Abstract
Abstract Detergency boosters comprise certain nonionic surfactants. When used at particular concentrations in conjunction with commercial laundry detergents in laundering liquors of about 70 DEG C., and higher, followed by rinsing at about 66 DEG C., or lower, the boosters herein provide improved fabric cleaning benefits. The nonionic surfactant detergency boosters herein are the ethoxylated primary aliphatic alcohols characterized by an average aliphatic chain length in the range C12-C13 and an average degree of ethoxylation of about 3.
Inventors
- 👤 Donn N. Rubingh
- 👤 Theodore C. Stephens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:49
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/72; C11D1/83
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
131 words
A process for laundering fabrics, comprising agitating said fabrics with an aqueous laundering liquor consisting essentially of: (a) from about 0.075% to about 0.20% by weight of said liquor of a detergency booster which is an ethoxylated primary hydrocarbon alcohol having an average hydrocarbon chain length in the range of about C 12 -C 13 and an average degree of ethoxylation of about 3; (b) from about 0.02% to about 0.12% by weight of said liquor of a material selected from the group consisting of nonionic and anionic detersive surfactants, and mixtures thereof; and (c) the balance of said laundering liquor is water; said laundering liquor being at a temperature of about 70° C., or higher, and thereafter rinsing said fabrics with water at temperatures of about 66° C., or lower.
Claim 2
Dependent Claim
131 words
A process for laundering fabrics, comprising agitating said fabrics with an aqueous laundering liquor consisting essentially of: (a) from about 0.075% to about 0.20% by weight of said liquor of a detergency booster which is an ethoxylated primary hydrocarbon alcohol having an average hydrocarbon chain length in the range of about C 12 -C 13 and an average degree of ethoxylation of about 3; (b) from about 0.02% to about 0.12% by weight of said liquor of a material selected from the group consisting of nonionic and anionic detersive surfactants, and mixtures thereof; and (c) the balance of said laundering liquor is water; said laundering liquor being at a temperature of about 70° C., or higher, and thereafter rinsing said fabrics with water at temperatures of about 66° C., or lower.
Claim 3
Dependent Claim
60 words
A process according to claim 1 which comprises agitating the fabrics with said aqueous laundering liquor being at a temperature of about 80° C., or higher, said agitation being carried out for a period of time of from about 1 minute to about 30 minutes, and thereafter rinsing said fabrics with water at temperatures of about 60° C., and lower.
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) | 1984-02-03 | 1984-08-04 | 1985-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-03 | 1988-08-04 | 1989-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-03 | 1992-08-04 | 1993-02-03 | $7700.00 | Window Closed / Lapsed |