US2011186772A1PendingUtilityA1

Heat transfer fluid

69
Assignee: Arkerna FrancePriority: Oct 8, 2008Filed: Sep 24, 2009Published: Aug 4, 2011
Est. expiryOct 8, 2028(~2.2 yrs left)· nominal 20-yr term from priority
Inventors:Wissam Rached
C08J 9/146C10N 2020/101C09K 2205/40C10M 2209/1033C10M 2203/003C10N 2040/30C10M 171/008C10M 2209/043C09K 2205/126F25B 31/002F25B 45/00C09K 2205/122C10M 2203/065C09K 5/045C09K 2205/22C09K 2205/43
69
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Claims

Abstract

The present invention relates to compositions which are based on tetrafluoropropene and more particularly relates to compositions comprising 60% to 90% by weight of 2,3,3,3-tetrafluoropropene and 10% to 40% by weight of at least one compound selected from difluoroethane and difluoromethane, which can be used as a heat transfer fluid.

Claims

exact text as granted — not AI-modified
1 . Composition comprising 60% to 90% by weight of 2,3,3,3-tetrafluoropropene and 10% to 40% by weight of at least one compound selected from difluoroethane and difluoromethane. 
     
     
         2 . Composition according to  claim 1 , characterized in that it comprises 60% to 79% by weight of 2,3,3,3-tetrafluoropropene and 21% to 40% by weight of a compound selected from the group consisting of difluoroethane and difluoromethane. 
     
     
         3 . Composition according to either of  claim 1 , characterized in that it comprises 60% to 70% by weight of 2,3,3,3-tetrafluoropropene and 30% to 40% by weight of a compound selected from the group consisting of difluoroethane and difluoromethane. 
     
     
         4 . Composition according to  claim 1 , characterized in that it comprises 60% to 80% by weight of 2,3,3,3-tetrafluoropropene and 20% to 40% by weight of a mixture composed of difluoromethane and difluoroethane. 
     
     
         5 . Composition according to  claim 1 , characterized in that it comprises 60% to 80% by weight of 2,3,3,3-tetrafluoropropene and 5% to 35% by weight of difluoromethane and 5% to 35% by weight of difluoroethane. 
     
     
         6 . Composition according to  claim 1 , characterized in that it comprises 60% to 80% by weight of 2,3,3,3-tetrafluoropropene and 10% to 30% by weight of difluoromethane and 10% to 30% by weight of difluoroethane. 
     
     
         7 . Heat transfer fluid according to  claim 1 . 
     
     
         8 . Composition according to  claim 1 , characterized in that it is used as a replacement for R-404A in refrigeration and/or as a replacement for R-407C in heat pumps or air conditioning.

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