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US3997481A
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Detergents containing 1,2-diamino-cyclohexane-N,N,N',N'-tetraacetic acids
Assignee: Colgate Palmolive Co
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Filing: 1972-09-25
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Granted: 1976-12-14
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Expires: 1992-09-25
Abstract
Abstract A non-phosphate and non-NTA containing detergent composition comprising from about 30 to 95% by weight of a detergent, especially an anionic or nonionic detergent and from about 5 to 70% by weight of trans-1,2-diaminocyclohexane-N,N,N',N'-tetraacetic acid, cis-1,2-diaminocyclohexane-N,N,N',N'-tetraacetic acid and salts thereof.
Inventors
- 👤 Bao-Ding Cheng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:33
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/26; C11D3/33; C11D1/00; C11D1/66; C11D1/83; C11D1/02; C11D1/12; C11D1/22; C11D1/29; C11D1/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A liquid cleaning composition substantially free of phosphate and nitrilotriacetic acid builders consisting essentially of, by weight, 31.0% mixed C 12-15 alcohol triethenoxy sulfate, sodium salt, 10.3% C 14-15 alkyl polyethenoxy non-ionic containing 11 moles of ethylene oxide, 22.0% 1,2-diaminocyclohexane tetraacetic acid, 10.3% linear tridecyl benzene sulfonate, sodium salt, 8.6% isopropyl alcohol and the balance essentially water.
Claim 2
Dependent Claim
57 words
A liquid cleaning composition substantially free of phosphate and nitrilotriacetic acid builders consisting essentially of, by weight, 31.0% mixed C 12-15 alcohol triethenoxy sulfate, sodium salt, 10.3% C 14-15 alkyl polyethenoxy non-ionic containing 11 moles of ethylene oxide, 22.0% 1,2-diaminocyclohexane tetraacetic acid, 10.3% linear tridecyl benzene sulfonate, sodium salt, 8.6% isopropyl alcohol and the balance essentially water.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-12-14 | 1980-06-14 | 1980-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-14 | 1984-06-14 | 1984-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-14 | 1988-06-14 | 1988-12-14 | $7700.00 | Window Closed / Lapsed |