(19)

(11)

EP 0 483 163 A1

(12)

(43) Date of publication: 06.05.1992 Bulletin 1992/19 (21) Application number: 90908787.0 (22) Date of filing: 17.05.1990

(51) International Patent Classification (IPC):  D21C( . ) D21C 9/ 00( . ) D21C 9/ 14( . ) D21C 9/ 153( . ) D21C 3/ 26( . ) D21C 9/ 10( . ) D21C 9/ 147( . ) D21C 9/ 16( . ) (86) International application number: PCT/US1990/002823 (87) International publication number: WO 1991/018145 (28.11.1991 Gazette 1991/27)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI LU NL SE (71) Applicant: Union Camp Corporation Wayne New Jersey 07470 - 2066 (US)	(72) Inventors: GRIGGS, Bruce, F. Columbia, SC 29223 (US) GANDEK, Thomas, P. Trenton, NJ 08618 (US) PIKULIN, Michael, A. Bround Brook, NJ 08805 (US) ROSEN, Allen Lawrenceville, NJ 08648 (US) (74) Representative: Timmermans, Anthonius C.Th., Ir.  European Patent Attorneys Octrooibureau Zuid P.O. Box 2287 NL-5600 CG Eindhoven NL-5600 CG Eindhoven (NL)