(19)

(11)

EP 0 169 201 A1

(12)

(43) Date of publication: 29.01.1986 Bulletin 1986/05 (21) Application number: 84901382.0 (22) Date of filing: 26.03.1984

(51) International Patent Classification (IPC):  C08L 21/ 00( . ) C07C 239/ 00( . ) C08K 5/ 32( . ) C07C 67/ 00( . ) C07C 291/ 02( . ) C08L 7/ 00( . ) (86) International application number: PCT/GB1984/000098 (87) International publication number: WO 1984/003883 (11.10.1984 Gazette 1984/24)

(84) Designated Contracting States: DE FR GB NL (30) Priority: 30.03.1983 GB 19830008840 (71) Applicants: SCOTT, Gerald Solihull West Midlands B93 OET (GB) NETHSINGHE, Lakshman Premal Keele Staffordshire ST5 5BG (GB)	(72) Inventors: SCOTT, Gerald Solihull West Midlands B93 OET (GB) NETHSINGHE, Lakshman Premal Keele Staffordshire ST5 5BG (GB) (74) Representative: Colmer, Stephen Gary  Patent Department National Research Development Corporation 101 Newington Causeway London SE1 6BU London SE1 6BU (GB)