Global Patent Index - EP 0406433 B9

EP 0406433 B9 20071010 - TETRAFLUOROETHANE COMPOSITION FOR A REGRIGERATOR

Title (en)

TETRAFLUOROETHANE COMPOSITION FOR A REGRIGERATOR

Title (de)

TETRAFLUORÄTHANGEMISCH FÜR EINEN KÜHLSCHRANK

Title (fr)

COMPOSE A BASE DE TETRAFLUOROETHANE POUR REFRIGERATEURS

Publication

EP 0406433 B9 20071010 (EN)

Application

EP 89912503 A 19891109

Priority

  • JP 8901150 W 19891109
  • JP 21755189 A 19890825
  • JP 21755089 A 19890825
  • JP 18452889 A 19890719
  • JP 8982589 A 19890411
  • JP 134589 A 19890110
  • JP 134489 A 19890110
  • JP 26289 A 19890106
  • JP 26189 A 19890106
  • JP 26089 A 19890106
  • JP 28401188 A 19881111
  • JP 28401088 A 19881111
  • JP 28400988 A 19881111
  • JP 28400888 A 19881111

Abstract (en)

[origin: WO9005172A1] A tetrafluoroethane composition for a refrigerator, which comprises a tetrafluoroethane and at least one polyether selected from the group consisting of: (I), (II) and (III), wherein R<1> is an alkylene group, each of R<2>, R<3>, R<4>, R<5>, R<6>, R<7> and R<8> which may be the same or different is a hydrogen atom, and alkyl group, an aralkyl group, an aryl group, an acyl group, a glycidyl group, -SO2R<9>, alpha , beta or -Y<1>-(OR<1>)p-OR<12>, wherein R<1> is as defined above, each of R<9>, R<10> R<11> and R<12> is an alkyl group, an aralkyl group or an aryl, and Y<1> is a residue of a dicarboxylic compound having at least 3 carbon atoms, provided that at least one of R<2> and R<3> and at least one of R<4> and R<5> are not hydrogen atoms, and when R<2> is a hydrogen atom, an alkyl group for R<3> has 1 or 2 carbon atoms, and when R<3> is a hydrogen atom, an alkyl group for R<2> has 1 or 2 carbon atoms, l, m, n and p which may be the same or different are integers which bring the kinematic viscosity of the compounds of the formulas (I) to (III) to a level of from 5 to 300 cSt at 40 DEG C, X<1> is a residue obtained by removing hydroxyl groups from a dihydroxy compound or a dicarboxylic compound, and X<2> is a residue obtained by removing hydroxyl groups from a trihydroxy compound or a tricarboxylic compound.

IPC 8 full level

C07C 43/02 (2006.01); C09K 5/04 (2006.01); C10M 171/00 (2006.01); F25D 5/00 (2006.01)

CPC (source: EP KR)

C09K 5/04 (2013.01 - KR); C09K 5/045 (2013.01 - EP); C10M 171/008 (2013.01 - EP); C09K 2205/24 (2013.01 - EP)

Designated contracting state (EPC)

DE FR GB IT NL SE

DOCDB simple family (publication)

WO 9005172 A1 19900517; AU 4508789 A 19900528; AU 616073 B2 19911017; CA 2002693 A1 19900511; CA 2002693 C 20040330; DE 68927858 D1 19970417; DE 68927858 T2 19970626; DE 68927858 T3 20070503; EP 0406433 A1 19910109; EP 0406433 B1 19970312; EP 0406433 B2 20070103; EP 0406433 B9 20071010; KR 900701955 A 19901205; KR 960007698 B1 19960608

DOCDB simple family (application)

JP 8901150 W 19891109; AU 4508789 A 19891109; CA 2002693 A 19891110; DE 68927858 T 19891109; EP 89912503 A 19891109; KR 900701488 A 19900711