(19)

(11)

EP 0 496 783 A1

(12)

(43) Date of publication: 05.08.1992 Bulletin 1992/32 (21) Application number: 90915577.0 (22) Date of filing: 03.10.1990

(51) International Patent Classification (IPC):  C11D 3/ 386( . ) C12N 9/ 42( . ) D06M 101/ 00( . ) D06M 101/ 06( . ) C11D 7/ 42( . ) D06M 16/ 00( . ) D06M 101/ 02( . ) (86) International application number: PCT/US1990/005618 (87) International publication number: WO 1991/005841 (02.05.1991 Gazette 1991/10)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI LU NL SE (30) Priority: 19.10.1989 US 19890422814 (71) Applicant: GENENCOR INTERNATIONAL INC. Rochester, New York 14618 (US)	(72) Inventors: BJORK, Nancy, J. Burlingame, CA 94010 (US) CLARKSON, Kathleen, A. San Francisco, CA 94110 (US) LAD, Pushkaraj, T. Pacifica, CA 94404 (US) WEISS, Geoffrey, L. San Francisco, CA 94117 (US) (74) Representative: Armitage, Ian Michael  MEWBURN ELLIS York House 23 Kingsway London WC2B 6HP London WC2B 6HP (GB)