US5064560A
Expired / Lapsed
US
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Ternary azeotropic compositions of 43-10mee (CF3 CHFCHFCH2 CF.sub.
Assignee: EIDP Inc
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Filing: 1990-10-11
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Granted: 1991-11-12
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Expires: 2010-10-11
Abstract
Abstract Azeotropic mixtures of 1,1,1,2,3,4,4,5,5,5-decafluoropentane and trans 1,2-dichloroethylene with methanl or ethanol, the azeotropic mixtures being useful in solvent cleaning applications.
Inventors
- 👤 Abid N. Merchant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:19
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/22; C11D7/26; C11D7/261; C08; C08J; C08J9/00; C08J9/04; C08J9/12; C08J9/14; C08J9/149; C09; C09K; C09K3/00; C09K3/30; C09K5/00; C09K5/02; C09K5/04; C09K5/041; C09K5/044; C09K5/045; C11D7/50; C11D7/5036; C11D7/5068; C11D7/5077; C11D7/5081; C23; C23G; C23G5/00; C23G5/02; C23G5/028; C23G5/02803; C08J2207/00; C08J2207/04; C09K2205/00; C09K2205/10; C09K2205/12; C09K2205/122; C09K2205/32; C11D2111/00; C11D2111/10; C11D2111/14; C11D2111/22; H; H05; H05K; H05K3/00; H05K3/22; H05K3/26
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
78 words
An azeotropic composition consisting essentially of: (a) 55-65 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane, 32.5-40 weight percent trans 1,2-dichloroethylene, and 2.5-5 weight percent methanol, wherein the composition has a boiling point of about 35.3° C. when the pressure is adjusted to substantially atmospheric pressure; or (b) 59-67 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane, 31.5-38 weight percent trans 1,2-dichloroethylene, and about 0.5-3 weight percent ethanol, wherein the composition has a boiling point of about 35.1° C. when the pressure is adjusted to substantially atmospheric pressure.
Claim 2
Dependent Claim
78 words
An azeotropic composition consisting essentially of: (a) 55-65 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane, 32.5-40 weight percent trans 1,2-dichloroethylene, and 2.5-5 weight percent methanol, wherein the composition has a boiling point of about 35.3° C. when the pressure is adjusted to substantially atmospheric pressure; or (b) 59-67 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane, 31.5-38 weight percent trans 1,2-dichloroethylene, and about 0.5-3 weight percent ethanol, wherein the composition has a boiling point of about 35.1° C. when the pressure is adjusted to substantially atmospheric pressure.
Claim 3
Dependent Claim
26 words
The azeotropic composition of claim 1, consisting essentially of about 55-65 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane, about 32.5-40 weight percent trans 1,2-dichloroethylene and about 2.5-5 weight percent methanol.
Claim 4
Dependent Claim
23 words
The azeotropic composition of claim 2 consisting essentially of 58-64 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane, 34-38 weight percent trans 1,2-dichloroethylene and 3-4 weight percent methanol.
Claim 5
Dependent Claim
26 words
The azeotropic composition of claim 3, consisting essentially of about 60.5 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane, about 36.2 weight percent trans 1,2-dichloroethylene and about 3.3 weight percent methanol.
Claim 6
Dependent Claim
26 words
The azeotropic composition of claim 1, consisting essentially of about 59-67 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane, about 31.5-38 weight percent trans 1,2-dichloroethylene and about 0.5-3 weight percent ethanol.
Claim 7
Dependent Claim
23 words
The azeotropic composition of claim 5 consisting essentially of 61-66 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane, 33.5-37 weight percent trans 1,2-dichloroethylene and 0.5-2 weight percent ethanol.
Claim 8
Dependent Claim
26 words
The azeotropic composition of claim 6, consisting essentially of about 64 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane, about 35.0 weight percent trans 1,2-dichloroethylene and about 1.0 weight percent ethanol.
Claim 9
Dependent Claim
23 words
A process for producing a refrigeration which comprises evaporating a mixture of claim 1 in the vicinity of a body to be cooled.
Claim 10
Dependent Claim
22 words
A process for producing heat which comprises condensing a composition of claim 1 in the vicinity of a body to be heated.
Claim 11
Dependent Claim
28 words
In a process for preparing a polymer foam comprising expanding a polymer with a blowing agent, the improvement wherein the blowing agent is a composition of claim 1.
Claim 12
Dependent Claim
22 words
In an aerosol composition comprising a propellant and an active agent, the improvement wherein the propellant is a composition of claim 1.
Claim 13
Dependent Claim
28 words
A process for preparing aerosol formulations comprising condensing an active ingredient in an aerosol container with an effective amount of the composition of claim 1 as a propellant.
Claim 14
Dependent Claim
21 words
A process for cleaning a solid surface which comprises treating said surface with the azeotrope or azeotrope-like compositions of claim 1.
Claim 15
Dependent Claim
19 words
The process of claim 12, wherein the solid surface is a printed circuit board contaminated with flux and flux-residues.
Claim 16
Dependent Claim
12 words
The process of claim 13, wherein the solid surface is a metal.
References Cited (Backward Citations)
No citation records indexed.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1994-11-11 | 1995-05-13 | 1995-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-11 | 1999-05-13 | 1999-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-11 | 2003-05-13 | 2003-11-12 | $7700.00 | Window Closed / Lapsed |