(19)

(11)

EP 0 519 012 A1

(12)

(43) Date of publication: 23.12.1992 Bulletin 1992/52 (21) Application number: 91907198.0 (22) Date of filing: 06.03.1991

(51) International Patent Classification (IPC):  C08G 69/ 02( . ) C08G 69/ 36( . ) C08G 69/ 26( . ) C08G 69/ 44( . ) (86) International application number: PCT/NL1991/000036 (87) International publication number: WO 1991/013930 (19.09.1991 Gazette 1991/22)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 06.03.1990 NL 19900000509 06.03.1990 NL 19900000510 06.03.1990 NL 19900000512 (71) Applicant: DOW BENELUX N.V. NL-4530 AA Terneuzen (NL)	(72) Inventors: GAYMANS, Reinoud, Jaap NL-7548 PX Enschede (NL) DE HAAN, Jeanette, Louise D-8043 Unterföhring (DE) (74) Representative: Smulders, Theodorus A.H.J., Ir., et al  Vereenigde Octrooibureaux Nieuwe Parklaan 97 NL-2587 BN 's-Gravenhage NL-2587 BN 's-Gravenhage (NL)