US4421680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning and degreasing composition
Assignee: Individual
•
Filing: 1981-09-18
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Granted: 1983-12-20
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Expires: 2001-09-18
Abstract
Abstract A degreasing composition consisting essentially of 3-5% by weight of an ethylene glycol monoalkyl ether; 3-5% by weight of RCON(C n H 2n OH) 2 ), wherein R is alkly of 8-18 carbon atoms and n is 2 or 3; 0.5-1.5% by weight of sodium metasilicate pentahydrate; 0.1-9.5% by weight of KOH; 1-3% by weight of R'CONH(CH 2 ) 3 N + (CH 3 ) 2 CH 2 COO - , wherein R' is alkyl of 8-18 carbon atoms; 3-5% by weight of R"--C 6 H 4 --SO 3 - H 3 N + R'", wherein R" is alkyl of 9-15 carbon atoms and R'" is alkyl of 2-4 carbon atoms; and water.
Inventors
- 👤 Irving Shivar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:48
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/88; C11D1/94; C11D1/02; C11D1/12; C11D1/22; C11D1/38; C11D1/52; C11D1/523
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A degreasing composition consisting essentially of 4.0-4.25% by weight of n-butoxyethanol, 4.0-4.25% by weight of a coconut diethanolamide, 0.75-1.0% by weight of sodium metasilicate pentahydrate, 0.2-0.3% by weight of potassium hydroxide, 1.75-2.0% by weight of cocamidopropyl betaine, 4.0-4.25% by weight of an isopropylamine salt of dodecylbenzenesulfonic acid and water.
Claim 2
Dependent Claim
49 words
A degreasing composition consisting essentially of 4.0-4.25% by weight of n-butoxyethanol, 4.0-4.25% by weight of a coconut diethanolamide, 0.75-1.0% by weight of sodium metasilicate pentahydrate, 0.2-0.3% by weight of potassium hydroxide, 1.75-2.0% by weight of cocamidopropyl betaine, 4.0-4.25% by weight of an isopropylamine salt of dodecylbenzenesulfonic acid and water.
References Cited (Backward Citations)
FR1300699A
Cited
US3882038A
Cited
US3910855A
Cited
US3960742A
Cited
US4087387A
Cited
US4158644A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-19 | 1987-06-20 | 1987-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-19 | 1991-06-20 | 1991-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-19 | 1995-06-20 | 1995-12-20 | $7700.00 | Window Closed / Lapsed |