(19)

(11)

EP 0 932 432 A1

(12)

(43) Date of publication: 04.08.1999 Bulletin 1999/31 (21) Application number: 96936260.0 (22) Date of filing: 08.10.1996

(51) International Patent Classification (IPC):  A62D 1/ 06( . ) C09K 21/ 02( . ) A62D 1/ 00( . ) C09K 21/ 10( . ) (86) International application number: PCT/US1996/016089 (87) International publication number: WO 1998/015322 (16.04.1998 Gazette 1998/15)

(84) Designated Contracting States: BE CH DE FR GB LI NL (71) Applicant: Huntington Research and Engineering San Jose, CA 95109 (US)	(72) Inventors: HAALAND, Peter, D. Louisville, CO 80027 (US) HUNTINGTON, John, H. San Jose, CA 95109 (US) (74) Representative: Hoffmann, Jörg Peter, Dr. Ing.  Müller & Hoffmann Patentanwälte Innere Wiener Strasse 17 81667 München 81667 München (DE)