US5399281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition with hydrogen-containing fluorochlorohydrocarbons
Assignee: Kali Chemie AG
•
Filing: 1993-07-21
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Granted: 1995-03-21
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Expires: 2013-07-21
Abstract
Abstract Cleaning compositions containing selected hydrogen-containing fluorochlorohydrocarbons, selected surface-active agents, and optional amounts of water and/or ammonia.
Inventors
- 👤 Hans Buchwald
- 👤 Andreas Brackmann
- 👤 Boleslaus Raschkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:56
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/43; C11D7/00; C11D7/50; C11D7/5004; C11D7/5018; H; H05; H05K; H05K3/00; H05K3/22; H05K3/26
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
143 words
A cleaning composition in the form of a stable, water-in-oil emulsion consisting essentially of from 0.5 to 5 wt. % of at least one surface-active agent selected from the group consisting of ammonium salts of C8 to C12 alkylbenzenesulfonates and mixtures of at least one fatty acid alkanol amide corresponding to the formula R.sup.1 --CO--N(R.sup.2)--(CH.sup.2).sub.n --OH wherein R 1 --CO is a saturated or unsaturated C12 to C18 fatty acid group, R 2 is hydrogen or a --(CH 2 ) n --OH group, and n is an integer from 1 to 6 and at least one C8 to C12 alkylphenol polyglycol ether containing from 5 to 8 ethylene oxide units, and from 80 to 99 wt. % of 1,1-dichloro-1-monofluoroethane, from 0.5 to 15 wt. % water, and from 0 to 2 wt. % ammonia; the sum of the components being 100 wt. %.
Claim 2
Dependent Claim
143 words
A cleaning composition in the form of a stable, water-in-oil emulsion consisting essentially of from 0.5 to 5 wt. % of at least one surface-active agent selected from the group consisting of ammonium salts of C8 to C12 alkylbenzenesulfonates and mixtures of at least one fatty acid alkanol amide corresponding to the formula R.sup.1 --CO--N(R.sup.2)--(CH.sup.2).sub.n --OH wherein R 1 --CO is a saturated or unsaturated C12 to C18 fatty acid group, R 2 is hydrogen or a --(CH 2 ) n --OH group, and n is an integer from 1 to 6 and at least one C8 to C12 alkylphenol polyglycol ether containing from 5 to 8 ethylene oxide units, and from 80 to 99 wt. % of 1,1-dichloro-1-monofluoroethane, from 0.5 to 15 wt. % water, and from 0 to 2 wt. % ammonia; the sum of the components being 100 wt. %.
Claim 3
Dependent Claim
31 words
A cleaning composition according to claim 1, wherein said surface active agent is a mixture of oleic acid diethanol amide and nonylphenol polyglycol ether containing 7 to 8 ethylene oxide units.
Claim 4
Dependent Claim
27 words
A cleaning composition according to claim 1, wherein the oleic acid diethanol amide and the nonylphenol polyglycol ether are present in a weight ratio of about 5:1.
Claim 5
Dependent Claim
15 words
A cleaning composition according to claim 1, wherein said surface active agent is isopropylammonium dodecylbenzenesulfonate.
Claim 6
Dependent Claim
33 words
A cleaning composition according to claim 1, containing from 2 to 3 wt. % of said surface-active agent, 88 to 96 wt. % of 1,1-dichloro-1-monofluoroethane, and from 2 to 9 wt. % water.
Claim 7
Dependent Claim
41 words
A cleaning composition according to claim 1, containing from 2 to 3 wt. % of said surface active agent, 86 to 95.99 wt. % of 1,1-dichloro1-monofluoroethane, from 2 to 9 wt. % water, and from 0.01 to 2 wt. % ammonia.
Claim 8
Dependent Claim
35 words
A cleaning composition according to claim 1, further containing 0.01 to 5 wt. % relative to the total mixture of at least one stabilizer selected from the group consisting of nitroalkanes, alkylene oxides and alkynols.
Claim 9
Dependent Claim
17 words
A cleaning composition according to claim 7, containing from 0.05 to 1 wt. % of said stabilizer.
Claim 10
Dependent Claim
20 words
A method of cleaning a surface comprising the step of contacting said surface with a composition according to claim 1.
Claim 11
Dependent Claim
14 words
A method according to claim 9, wherein said composition is sprayed on said surface.
Claim 12
Dependent Claim
14 words
A method according to claim 9, wherein said surface is immersed in said composition.
Claim 13
Dependent Claim
18 words
A method according to claim 11, wherein said surface is subjected to ultrasound while immersed in said composition.
Claim 14
Dependent Claim
22 words
A method of cleaning a textile material comprising the step of contacting said material with a cleaning composition according to claim 1.
Claim 15
Dependent Claim
25 words
A method of removing water from a wet surface comprising the step of contacting said wet surface with a cleaning composition according to claim 1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1998-03-20 | 1998-09-19 | 1999-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-03-20 | 2002-09-19 | 2003-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-03-20 | 2006-09-19 | 2007-03-21 | $7700.00 | Window Closed / Lapsed |