(19)

(11)

EP 0 498 834 A1

(12)

(43) Date of publication: 19.08.1992 Bulletin 1992/34 (21) Application number: 90916529.0 (22) Date of filing: 30.10.1990

(51) International Patent Classification (IPC):  C08F 220/ 68( . ) (86) International application number: PCT/NL1990/000163 (87) International publication number: WO 1991/006586 (16.05.1991 Gazette 1991/11)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 31.10.1989 US 19890429374 (71) Applicant: STAMICARBON B.V. NL-6167 AC Geleen (NL)	(72) Inventors: HOFLAND, Adriaan NL-8031 ZH Zwolle (NL) PONS, Dick, Adriaan NL-3145 CA Maassluis (NL)