(19)

(11)

EP 0 153 369 A1

(12)

(43) Date of publication: 04.09.1985 Bulletin 1985/36 (21) Application number: 84903142.0 (22) Date of filing: 08.08.1984

(51) International Patent Classification (IPC):  C23C 18/ 34( . ) C23C 18/ 40( . ) C23C 18/ 16( . ) C23C 18/ 50( . ) (86) International application number: PCT/US1984/001253 (87) International publication number: WO 1985/001070 (14.03.1985 Gazette 1985/07)

(84) Designated Contracting States: BE CH DE FR GB LI NL SE (30) Priority: 22.08.1983 US 19830525358 (71) Applicant: ENTHONE, INCORPORATED West Haven, CT 06516 (US)	(72) Inventors: SCHULTZ, Paul, Bernard West Haven, CT 06516 (US) YARKOSKY, Eugene, Francis West Haven, CT 06516 (US) (74) Representative: Cropp, John Anthony David, et al  MATHYS & SQUIRE 100 Grays Inn Road London, WC1X 8AL London, WC1X 8AL (GB)