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Patent US5196137A successfully refreshed from Google Patents.
US5196137A
Expired / Lapsed
US
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Azeotropic composition of 1,1,1,2,3,4,4,5,5,5-decafluoropentane and trans-1,2-dichloroethylene, cis-1,2-dichloroethylene or 1,1-dichlorethane
Assignee: EIDP Inc
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Filing: 1991-10-01
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Granted: 1993-03-23
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Expires: 2011-10-01
Abstract
Abstract Azeotropic mixtures of 1,1,1,2,3,4,4,5,5,5-decafluoropentane (HFC-43-10mee) and trans-1,2-dichloroethylene, cis-1,2-dichloroethylene or 1,1-dichloroethane are useful as cleaning agents, expansion agents for polyolefins and polyurethanes, refrigerants, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents, and displacement drying agents.
Inventors
- 👤 Abid N. Merchant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:57
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/50; C11D7/5036; C11D7/504; C11D7/5059; C08; C08J; C08J9/00; C08J9/04; C08J9/12; C08J9/14; C08J9/143; C08J9/144; C09; C09K; C09K3/00; C09K3/30; C09K5/00; C09K5/02; C09K5/04; C09K5/041; C09K5/044; C09K5/045; C23; C23G; C23G5/00; C23G5/02; C23G5/028; C23G5/02803; C08J2207/00; C08J2207/04; C09K2205/00; C09K2205/10; C09K2205/12; C09K2205/122; C09K2205/32; Y; Y10; Y10S; Y10S264/00; Y10S264/05
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
36 words
An azeotropic or azeotrope-like composition consisting essentially of about 58 to 68 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane and about 32 to 42 weight percent trans-1,2-dichloroethylene wherein said composition boils at about 37.3° C.±1.6° C. at substantially atmospheric pressure.
Claim 2
Dependent Claim
36 words
An azeotropic or azeotrope-like composition consisting essentially of about 58 to 68 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane and about 32 to 42 weight percent trans-1,2-dichloroethylene wherein said composition boils at about 37.3° C.±1.6° C. at substantially atmospheric pressure.
Claim 3
Dependent Claim
22 words
The azeotropic or azeotrope-like composition of claim 1, consisting essentially of about 63.2 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane and about 36.8 weight percent trans-1,2-dichloroethylene.
Claim 4
Dependent Claim
36 words
An azeotropic or azeotrope-like composition consisting essentially of about 63 to 73 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane and about 27 to 37 weight percent cis-1,2-dichloroethylene wherein said composition boils at about 12.3° C.±1.2° C. at substantially atmospheric pressure.
Claim 5
Dependent Claim
36 words
An azeotropic or azeotrope-like composition consisting essentially of about 63 to 73 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane and about 27 to 37 weight percent cis-1,2-dichloroethylene wherein said composition boils at about 12.3° C.±1.2° C. at substantially atmospheric pressure.
Claim 6
Dependent Claim
26 words
The azeotropic or azeotrope-like composition of claim 3, consisting essentially of about 67.9 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane and about 32.1 weight percent cis-1,2-dichloroethylene at about atmospheric pressure.
Claim 7
Dependent Claim
34 words
An azeotropic or azeotrope-like composition consisting essentially of about 68 to 78 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane and about 22-32 weight percent 1,1-dichloroethane wherein said composition boils at about 43.0° C.±2.8° C. at about atmospheric pressure.
Claim 8
Dependent Claim
34 words
An azeotropic or azeotrope-like composition consisting essentially of about 68 to 78 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane and about 22-32 weight percent 1,1-dichloroethane wherein said composition boils at about 43.0° C.±2.8° C. at about atmospheric pressure.
Claim 9
Dependent Claim
26 words
The azeotropic or azeotrope-like composition of claim 5, consisting essentially of about 73.0 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane and about 27.0 weight percent 1,1-dichloroethane at about atmospheric pressure.
Claim 10
Dependent Claim
24 words
A process for cleaning a solid surface comprising treating said surface with an azeotropic or azeotrope-like composition of any of claims 1 through 6.
Claim 11
Dependent Claim
33 words
A process for producing refrigeration, comprising condensing an azeotropic or azeotrope-like composition of any of claims 1 through 6, and thereafter evaporating said composition in the vicinity of a body to be cooled.
References Cited (Backward Citations)
US3881949A
Cited
US4418185A
Cited
EP0431458A1
Cited
US5059728A
Cited
US5118359A
Cited
US5100572A
Cited
US5064559A
Cited
US5064560A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-03-22 | 1996-09-21 | 1997-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-03-22 | 2000-09-21 | 2001-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-03-22 | 2004-09-21 | 2005-03-23 | $7700.00 | Window Closed / Lapsed |