(19)

(11)

EP 0 052 830 A3

(12)	EUROPEAN PATENT APPLICATION

(88) Date of publication A3: 07.12.1983 Bulletin 1983/49 (43) Date of publication A2: 02.06.1982 Bulletin 1982/22 (21) Application number: 81109610 (22) Date of filing: 11.11.1981

(84) Designated Contracting States: AT BE CH DE FR GB IT LI NL (30) Priority: 24.11.1980 DE 3044125 (71) Applicant: BAYER AG  ()	(72) Inventors: Dornheim, Götz Gotmar, Ing.grad.  () Giez, Edmund  ()