(19)

(11)

EP 0 548 121 A1

(12)

(43) Date of publication: 30.06.1993 Bulletin 1993/26 (21) Application number: 91915543.0 (22) Date of filing: 30.08.1991

(51) International Patent Classification (IPC):  A47G 27/ 02( . ) B32B 38/ 00( . ) B05D 1/ 40( . ) D06N 7/ 00( . ) (86) International application number: PCT/GB1991/001476 (87) International publication number: WO 1992/004498 (19.03.1992 Gazette 1992/07)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 04.09.1990 GB 19900019265 (71) Applicant: THE DOW CHEMICAL COMPANY Midland Michigan 48640-1967 (US)	(72) Inventor: HALLWORTH, Gerald Lancashire BL0 0AS (GB) (74) Representative: Funge, Harry  M'CAW & CO. 41-51 Royal Exchange Cross Street Manchester M2 7BD Manchester M2 7BD (GB)