(19)

(11)

EP 0 643 749 A1

(12)

(43) Date of publication: 22.03.1995 Bulletin 1995/12 (21) Application number: 94912424.0 (22) Date of filing: 05.04.1994

(51) International Patent Classification (IPC):  C09B 67/ 22( . ) C09D 17/ 00( . ) C09D 5/ 06( . ) (86) International application number: PCT/CA1994/000192 (87) International publication number: WO 1994/022966 (13.10.1994 Gazette 1994/23)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IE IT LI NL SE (30) Priority: 02.04.1993 US 19930042394 01.11.1993 US 19930144006 (71) Applicant: Towe, Michael Montreal, Quebec H2K 2R8 (CA)	(72) Inventor: Towe, Michael Montreal, Quebec H2K 2R8 (CA) (74) Representative: Gutmann, Ernest, et al  Ernest Gutmann - Yves Plasseraud S.A. 3, rue Chauveau-Lagarde F-75008 Paris F-75008 Paris (FR)