(19)

(11)

EP 0 609 308 A1

(12)

(43) Date of publication: 10.08.1994 Bulletin 1994/32 (21) Application number: 92921654.0 (22) Date of filing: 02.10.1992

(51) International Patent Classification (IPC):  B09C 1/ 02( . ) C02F 9/ 00( . ) B09C 1/ 10( . ) (86) International application number: PCT/NL1992/000175 (87) International publication number: WO 1993/006951 (15.04.1993 Gazette 1993/10)

(84) Designated Contracting States: BE DE FR NL (30) Priority: 04.10.1991 NL 19910001678 (71) Applicant: TE PAS MILIEUTECHNIEK B.V. NL-7532 ST Enschede (NL)

(72) Inventors: BORGGREVE, Gerardus, Bernardus, Johannus NL-7558 JT Hengelo (NL) VAN DEN BELD, Hendrikus NL-7548 AZ Boekelo (NL) WESTERTERP, Klaas, Roelof NL-7522 HM Enschede (NL) GEESINK, Gerrit, Herman, Willem NL-7558 DM Hengelo (NL) (74) Representative: Prins, Hendrik Willem, et al  Arnold & Siedsma, Advocaten en Octrooigemachtigden, Sweelinckplein 1 NL-2517 GK Den Haag NL-2517 GK Den Haag (NL)