(19)

(11)

EP 0 668 896 A1

(12)

(43) Date of publication: 30.08.1995 Bulletin 1995/35 (21) Application number: 93924744.0 (22) Date of filing: 11.11.1993

(51) International Patent Classification (IPC):  C08K 3/ 22( . ) C08K 3/ 38( . ) C09K 21/ 02( . ) C08K 3/ 30( . ) C09K 3/ 10( . ) C09K 21/ 14( . ) (86) International application number: PCT/GB1993/002321 (87) International publication number: WO 1994/011455 (26.05.1994 Gazette 1994/12)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 11.11.1992 GB 19920023636 (71) Applicant: VISPAK LIMITED Oadby, Leicester LE2 5NE (GB)	(72) Inventors: TRAHEARN, Guydo Rees Narborough, Leicester LE9 5DN (GB) HLUCHAN, Wolodymyr Iwan West Knighton, Leicester LE2 6JL (GB) (74) Representative: McKelvey, Ian Edward  Serjeants 25 The Crescent Leicester LE1 6RX Leicester LE1 6RX (GB)