(19)

(11)

EP 0 022 772 A1

(12)

(43) Date of publication: 28.01.1981 Bulletin 1981/04 (21) Application number: 79900975.0 (22) Date of filing: 28.08.1979

(51) International Patent Classification (IPC):  A61K 6/ 00( . ) A61L 27/ 44( . ) A61K 6/ 083( . ) C08K 3/ 00( . ) (86) International application number: PCT/GB1979/000144 (87) International publication number: WO 1980/000409 (20.03.1980 Gazette 1980/06)

(84) Designated Contracting States: CH DE FR GB SE (30) Priority: 29.08.1978 GB 19340089278 (71) Applicants: SCED, Ian Robert Middlesex (GB) WILSON, Alan Donald Liphook Hampshire (GB)	(72) Inventors: SCED, Ian Robert Middlesex (GB) WILSON, Alan Donald Liphook Hampshire (GB) (74) Representative: Colmer, Stephen Gary  Patent Department National Research Development Corporation 101 Newington Causeway London SE1 6BU London SE1 6BU (GB)