(19)
(11)
EP 0 882 109 A1
(12)
(43)
Date of publication:
09.12.1998
Bulletin 1998/50
(21)
Application number:
97906459.0
(22)
Date of filing:
06.02.1997
(51)
International Patent Classification (IPC):
C11D
7/
50
( . )
C09K
5/
04
( . )
C09K
3/
30
( . )
F04D
29/
58
( . )
(86)
International application number:
PCT/US1997/001583
(87)
International publication number:
WO 1997/031080
(
28.08.1997
Gazette 1997/37)
(84)
Designated Contracting States:
DE ES FR GB IT NL
(30)
Priority:
21.02.1996
US 19960604521
(71)
Applicant:
E.I. DU PONT DE NEMOURS AND COMPANY
Wilmington Delaware 19898 (US)
(72)
Inventor:
MINOR, Barbara, Haviland
Elkton, MD 21921 (US)
(74)
Representative:
Matthews, Derek Peter, et al
Frank B. Dehn & Co., European Patent Attorneys, 179 Queen Victoria Street
London EC4V 4EL
London EC4V 4EL (GB)
(54)
REFRIGERANT COMPOSITION COMPRISING 1,1,2,2-TETRAFLUOROETHANE