(19)
(11) EP 0 269 689 A1

(12)

(43) Date of publication:
08.06.1988 Bulletin 1988/23

(21) Application number: 87903718.0

(22) Date of filing: 04.06.1987
(51) International Patent Classification (IPC): 
F28D 20/ 00( . )
C09K 5/ 06( . )
(86) International application number:
PCT/GB1987/000389
(87) International publication number:
WO 1987/007630 (17.12.1987 Gazette 1987/28)
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 04.06.1986 GB 19860013520

(71) Applicant: EDECO HOLDINGS LIMITED
London SW1Y 4DG (GB)

(72) Inventors:
  • MATTHEWS, Andrew, James
    Bournemouth Dorset BH6 5EE (GB)
  • GLOVER, Deborah, Elaine
    Bournemouth Dorset BH8 8FW (GB)

(74) Representative: Bowles, Sharon Margaret 
BOWLES HORTON Felden House Dower Mews High Street
Berkhamsted Hertfordshire HP4 2BL
Berkhamsted Hertfordshire HP4 2BL (GB)

   


(54) ACTIVATION OF PHASE CHANGE MEDIUM