(19)

(11)

EP 0 797 618 A1

(12)

(43) Date of publication: 01.10.1997 Bulletin 1997/40 (21) Application number: 95940854.0 (22) Date of filing: 29.11.1995

(51) International Patent Classification (IPC):  C08F 226/ 06( . ) C08K 5/ 00( . ) (86) International application number: PCT/US1995/015434 (87) International publication number: WO 1996/018673 (20.06.1996 Gazette 1996/28)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 13.12.1994 US 19940355137 27.09.1995 US 19950534753 (71) Applicant: ISP INVESTMENTS INC. Wilmington, Delaware 19801 (US)	(72) Inventors: ZHONG, Yuanzhen Wayne, NJ 07470 (US) WOLF, Philip, F. Bridgewater, NJ 08807 (US) (74) Representative: Harrison, David Christopher, et al  MEWBURN ELLIS York House 23 Kingsway London WC2B 6HP London WC2B 6HP (GB)