EP0552075B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Mixtures of 1,1,1-trifluoroethane and perfluoropropane and their use as refrigerant, aerosol propellant or blowing agent for plastic foams
Assignee: Arkema France SA
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Filing: 1993-01-08
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Granted: 1995-06-28
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Expires: 2013-01-08
Abstract
Abstract To replace chlorofluorocarbons as refrigerating fluids, the invention proposes to employ mixtures containing, on a mass basis, approximately 40 to 70 % of 1,1,1-trifluoroethane and 30 to 60 % of perfluoropropane. The mixtures according to the invention can also be employed as aerosol propellants or as blowing agents for plastic foams.
Inventors
- 👤 Sylvie Macaudière
- 👤 Jean-Claude Tanguy
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 21:26
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/04; C09K5/041; C09K5/044; C09K5/045; C08; C08J; C08J9/00; C08J9/04; C08J9/12; C08J9/14; C08J9/149; C09K3/00; C09K3/30; C08J2207/00; C08J2207/04; C09K2205/00; C09K2205/10; C09K2205/12; C09K2205/128; C09K2205/22
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
18 words
Mixture containing, by mass, about 40 to 70 % of 1,1,1-trifluoroethane and 30 to 60 % of perfluoropropane
Claim 2
Dependent Claim
23 words
Mixture according to Claim 1, containing, by mass, about 41 % to 60.3 % of 1,1,1-trifluoroethane and 39.7 to 59 % of perfluoropropane.
Claim 3
Dependent Claim
38 words
Mixture according to Claim 2, characterised in that it contains, by mass, about 55 % of 1,1,1-trifluoroethane and 45 % of perfluoropropane and corresponds to an azeotropic mixture of low minimum boiling point (about -49.8°C at 1.013 bar).
Claim 4
Dependent Claim
15 words
The use of a mixture according to one of Claims 1 to 3 as refrigerant.
Claim 5
Dependent Claim
16 words
The use of a mixture according to one of Claims 1 to 3 as aerosol propellant.
Claim 6
Dependent Claim
19 words
The use of a mixture according to one of Claims 1 to 3 as blowing agent for plastic foams.
References Cited (Backward Citations)
No citation records indexed.
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