(19)

(11)

EP 0 608 406 A1

(12)

(43) Date of publication: 03.08.1994 Bulletin 1994/31 (21) Application number: 93917987.0 (22) Date of filing: 04.08.1993

(51) International Patent Classification (IPC):  A43B 23/ 07( . ) (86) International application number: PCT/GB1993/001647 (87) International publication number: WO 1994/003081 (17.02.1994 Gazette 1994/05)

(84) Designated Contracting States: AT BE CH DE ES FR GB GR IT LI LU NL (30) Priority: 05.08.1992 GB 19920016632 (71) Applicant: IMPERIAL CHEMICAL INDUSTRIES PLC London SW1P 3JF (GB)	(72) Inventors: TRAVIS, Anthony 2 Newlands Road Cumbria CA13 0AH (GB) BOARDMAN, Graham 1 Spring Bank Meadow North Yorkshire HG4 1HQ (GB) (74) Representative: Abitz, Walter, Dr.-Ing.  Patentanwälte Abitz & Partner Postfach 86 01 09 D-81628 München D-81628 München (DE)