(19)

(11)

EP 0 085 064 A1

(12)

(43) Date of publication: 10.08.1983 Bulletin 1983/32 (21) Application number: 82902189.0 (22) Date of filing: 27.07.1982

(51) International Patent Classification (IPC):  C09D 11/ 00( . ) G03C 1/ 73( . ) D21H 19/ 40( . ) (86) International application number: PCT/GB1982/000231 (87) International publication number: WO 1983/000568 (17.02.1983 Gazette 1983/05)

(84) Designated Contracting States: AT BE CH DE FR LI LU NL SE (30) Priority: 01.08.1981 GB 19810023616 (71) Applicant: PLESSEY OVERSEAS LIMITED Ilford Essex IG1 4AQ (GB)	(72) Inventors: HELLER, Harold George Aberystwyth Wales (GB) TRUNDLE, Clive Dyfed (GB)