(19)

(11)

EP 0 106 880 A1

(12)

(43) Date of publication: 02.05.1984 Bulletin 1984/18 (21) Application number: 83901526.0 (22) Date of filing: 28.03.1983

(51) International Patent Classification (IPC):  C11D 1/ 83( . ) C11D 17/ 00( . ) C11D 1/ 44( . ) C11D 3/ 22( . ) C11D 1/ 34( . ) (86) International application number: PCT/US1983/000446 (87) International publication number: WO 1983/003621 (27.10.1983 Gazette 1983/25)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL (30) Priority: 15.04.1982 US 19820368603 (71) Applicant: AMERICAN HOME PRODUCTS CORPORATION Madison, New Jersey 07940-0874 (US)	(72) Inventors: KOLODNY, Edwin Ralph Stamford, CT 06905 (US) LEIBOWITZ, Elliot Old Bridge, NJ 08857 (US)