EP0427604A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Azeotropic mixture with a low boiling point based on fluoroalcanes and its uses
Assignee: Arkema France SA
•
Filing: 1990-11-05
•
Granted: —
•
Expires: 2010-11-05
Abstract
Abstract An azeotrope of minimum boiling point, capable of being employed as refrigerating fluid replacing chlorofluorocarbons or as an extinguishing agent replacing bromofluorocarbons and chlorobromofluorocarbons. The azeotrope according to the invention is a mixture of 1,1,1,2-tetrafluoroethane and perfluoropropane. At normal boiling point (approximately -41.1 DEG C at 1.013 bar) its perfluoropropane content is approximately 76 mass% and that of 1,1,1,2-tetrafluoroethane is 24 %. This azeotrope can also be employed as an aerosol propellant or as a blowing agent for plastic foams.
Inventors
- 👤 Didier Arnaud
- 👤 Jean-Claude Tanguy
- 👤 Daniel Sallet
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 04:05
CPC Classifications
A; A62; A62D; A62D1/00; A62D1/0028; A62D1/0057; C; C07; C07C; C07C19/00; C07C19/08; C08; C08J; C08J9/00; C08J9/04; C08J9/12; C08J9/14; C08J9/143; C09; C09K; C09K3/00; C09K3/30; C09K5/00; C09K5/02; C09K5/04; C09K5/041; C09K5/044; C09K5/045; C08J2207/00; C08J2207/04; C09K2205/00; C09K2205/10; C09K2205/12; C09K2205/128; C09K2205/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3607755A
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.