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EP0443912A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Mixtures of dimethylether and 1,1,1,2-tetrafluoroethane and their applications

Assignee: Arkema France SA
•
Filing: 1991-02-12
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Granted: —
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Expires: 2011-02-12
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Abstract

Abstract Translated from French Pour remplacer les chlorofluorocarbures comme fluides frigorigènes, l'invention propose d'utiliser un mélange de diméthyléther et de 1,1,1,2-tétrafluoroéthane. Ces composés forment un azéotrope qui, à son point d'ébullition normale (environ -22,4°C sous 1, 013 bar), contient environ 62, 3 % en masse de 1,1,1,2-tétrafluoroéthane. Le mélange selon l'invention peut également être utilisé comme propulseur d'aérosols ou comme agent d'expansion des mousses plastiques. To replace chlorofluorocarbons as refrigerants, the invention proposes using a mixture of dimethyl ether and 1,1,1,2-tetrafluoroethane. These compounds form an azeotrope which, at its normal boiling point (approximately -22.4 ° C at 1.013 bar), contains approximately 62.3% by mass of 1,1,1,2-tetrafluoroethane. The mixture according to the invention can also be used as an aerosol propellant or as an agent for expanding plastic foams.

Inventors

  • 👤 Didier Arnaud
  • 👤 Jean-Claude Tanguy

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 18:06
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/12; C08J9/14; C08J9/149; C07; C07C; C07C19/00; C07C19/08; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C09; C09K; C09K3/00; C09K3/30; C08J2207/00; C08J2207/04; Y; Y10; Y10S; Y10S264/00; Y10S264/05

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2885427A Cited
US3607755A Cited
US4129603A Cited
EP0030127A1 Cited

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