EP0483573A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Azeotropic and/or azeotropelike mixtures and refrigeration or air conditioning systems using them as working fluids
Assignee: Daikin Industries Ltd
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Filing: 1991-10-12
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Granted: —
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Expires: 2011-10-12
Abstract
Abstract The invention relates to an azeotropic and/or azeotrope-like mixture comprising 1,1,2,2-tetrafluoroethane and 1,1-difluoroethane, the amount of the latter compound being less than 30 mol %, and a refrigeration or air conditioning system using the above-mentioned mixture as the refrigerant.
Inventors
- 👤 Koichi Watanabe
- 👤 Haruki Sato
- 👤 Susumu Sakai Seisakuso Kanaoka Factory Oshima
- 👤 Masahiro C/O Yodogawa Seisakusho Noguchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 07:26
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/04; C09K5/041; C09K5/044; C09K5/045; C09K3/00; C09K3/30; C09K2205/00; C09K2205/22; C09K2205/32
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
21 words
An azeotropic and/or azeotrope-like mixture comprising 1,1,2,2-tetrafluoroethane and 1,1-difluoroethane, the amount of the latter compound being less than 30 mol %.
Claim 2
Dependent Claim
21 words
An azeotropic and/or azeotrope-like mixture as defined in claim 1 which contains about 1 to about 18 mol % of 1,1-difluoroethane.
Claim 3
Dependent Claim
28 words
An azeotropic and/or azeotrope-like mixture comprising 1,1,2,2-tetrafluoroethane and 1,1-difluoroethane with its composition corresponding to the point along the broken line in Fig. 1 indicating the isothermal bubble-point pressure.
Claim 4
Dependent Claim
20 words
A refrigeration or air conditioning system using as the refrigerant the mixture defined in any of claims 1 to 3.
References Cited (Backward Citations)
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