US3945932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel trichloromonofluoromethane-alcohol azeotropes
Assignee: Honeywell International Inc
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Filing: 1974-06-19
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Granted: 1976-03-23
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Expires: 1994-06-19
Abstract
Abstract A composition which boils at a substantially constant temperature consisting essentially of trichloromonofluoromethane and an alcohol selected from ethanol, isopropanol or mixtures thereof and the process for using the composition in cleaning and lubricating applications.
Inventors
- 👤 Francis J. Figiel
- 👤 Robert J. Tepper
- 👤 Michael L. Dunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:18
CPC Classifications
C; C09; C09K; C09K3/00; C11; C11D; C11D7/00; C11D7/50; C11D7/5036; C11D7/5068; C11D7/5077; C11D7/5081; C23; C23G; C23G5/00; C23G5/02; C23G5/028; C23G5/02809; C23G5/02812
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
29 words
A composition consisting essentially of about 98.9 weight percent trichloromonofluoromethane and about 1.1 weight percent ethanol which has a boiling point at 760 mm of mercury of about 23.5°C.
Claim 2
Dependent Claim
29 words
A composition consisting essentially of about 98.9 weight percent trichloromonofluoromethane and about 1.1 weight percent ethanol which has a boiling point at 760 mm of mercury of about 23.5°C.
Claim 3
Dependent Claim
28 words
A composition consisting essentially of 99.5 weight percent trichloromonofluoromethane and about 0.5 weight percent isopropanol which has a boiling point at 760 mm of mercury of about 24.8°C.
Claim 4
Dependent Claim
28 words
A composition consisting essentially of 99.5 weight percent trichloromonofluoromethane and about 0.5 weight percent isopropanol which has a boiling point at 760 mm of mercury of about 24.8°C.
Claim 5
Dependent Claim
34 words
A composition consisting essentially of about 98.6 weight percent trichloromonofluoromethane, about 0.7 weight percent ethanol and about 0.7 weight percent isopropanol which has a boiling point at 760 mm of mercury of about 24.5°C.
Claim 6
Dependent Claim
34 words
A composition consisting essentially of about 98.6 weight percent trichloromonofluoromethane, about 0.7 weight percent ethanol and about 0.7 weight percent isopropanol which has a boiling point at 760 mm of mercury of about 24.5°C.
Claim 7
Dependent Claim
18 words
A method for cleaning or lubricating a substrate by contacting the substrate with the composition of claim 1.
Claim 8
Dependent Claim
18 words
A method for cleaning or lubricating a substrate by contacting the substrate with the composition of claim 2.
Claim 9
Dependent Claim
18 words
A method for cleaning or lubricating a substrate by contacting the substrate with the composition of claim 3.
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) | 1979-03-23 | 1979-09-22 | 1980-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-23 | 1983-09-22 | 1984-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-23 | 1987-09-22 | 1988-03-23 | $7700.00 | Window Closed / Lapsed |