US3714075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorinated hydrocarbon compositions and uses thereof
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1970-09-23
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Granted: 1973-01-30
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Expires: 1990-09-23
Abstract
Abstract A composition for cleaning and drying articles comprising a chlorohydrocarbon solvent and a metal, ammonium or amine salt of an alkyl benzene sulphonic acid wherein the alkyl group contains from seven to 14 carbon atoms.
Inventors
- 👤 P Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:52
CPC Classifications
C; C23; C23G; C23G5/00; C23G5/02; C23G5/028; C23G5/02806; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/22; C11D3/00; C11D3/43; C23G5/06; D; D06; D06L; D06L1/00; D06L1/02; D06L1/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
92 words
A composition for cleaning and drying articles consisting essentially of a chlorinated aliphatic hydrocarbon solvent selected from the group consisting of trichloroethylene, perchloroethylene, 1,1,1-trichloroethane, beta-trichloroethane, cis and trans-dichloroethylenes and methylene dichloride, up to 60 percent by weight of water, and from 0.1 to 33 percent by weight of an emulsifying agent which is soluble in the solvent and is selected from the group consisting of calcium, ammonium and primary, secondary and tertiary methylamine and ethylamine salts of alkyl benzene sulphonic acids wherein the alkyl group contains from 11 to 13 carbon atoms.
Claim 2
Dependent Claim
92 words
A composition for cleaning and drying articles consisting essentially of a chlorinated aliphatic hydrocarbon solvent selected from the group consisting of trichloroethylene, perchloroethylene, 1,1,1-trichloroethane, beta-trichloroethane, cis and trans-dichloroethylenes and methylene dichloride, up to 60 percent by weight of water, and from 0.1 to 33 percent by weight of an emulsifying agent which is soluble in the solvent and is selected from the group consisting of calcium, ammonium and primary, secondary and tertiary methylamine and ethylamine salts of alkyl benzene sulphonic acids wherein the alkyl group contains from 11 to 13 carbon atoms.
Claim 3
Dependent Claim
24 words
A composition as claimed in claim 1 wherein the amount of the salt is at least 1 percent by weight based on the composition.
Claim 4
Dependent Claim
12 words
A composition as claimed in claim 1 wherein the solvent is trichloroethylene.
Claim 5
Dependent Claim
12 words
A composition as claimed in claim 1 wherein the solvent is perchloroethylene.
Claim 6
Dependent Claim
20 words
A composition as claimed in claim 1 wherein the salt of an alkyl benzene sulphonic acid is the calcium salt.
Claim 7
Dependent Claim
31 words
A composition as claimed in claim 1 which contains water and wherein the ratio of the amounts of the salt and water are such that the composition is clear and stable.
Claim 8
Dependent Claim
17 words
A composition as claimed in claim 1 which contains at least 1 percent by weight of water.
Claim 9
Dependent Claim
41 words
A method of cleaning articles which comprises immersing the articles in a composition as claimed in claim 1, withdrawing the articles and subsequently rinsing them in a chlorinated aliphatic hydrocarbon solvent which is the same as that employed in the composition.
Claim 10
Dependent Claim
53 words
A method of drying articles which comprises immersing the articles in a composition as claimed in claim 1 which is capable of emulsifying water to form a clear water-in-oil emulsion, withdrawing the articles and subsequently rinsing them in a chlorinated aliphatic hydrocarbon solvent which is the same as that employed in the composition.
References Cited (Backward Citations)
US3272754A
Cited
US3222286A
Cited
US3310499A
Cited
US3336232A
Cited
US3355391A
Cited
US3538006A
Cited
US3539522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |