(19)

(11)

EP 0 525 045 A1

(12)

(43) Date of publication: 03.02.1993 Bulletin 1993/05 (21) Application number: 91908081.0 (22) Date of filing: 18.04.1991

(51) International Patent Classification (IPC):  C04B 35/ 571( . ) C04B 41/ 45( . ) D01F 8/ 04( . ) D01F 9/ 10( . ) C04B 35/ 622( . ) D01F 8/ 02( . ) D01F 9/ 08( . ) (86) International application number: PCT/GB1991/000604 (87) International publication number: WO 1991/016479 (31.10.1991 Gazette 1991/25)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI NL SE (30) Priority: 18.04.1990 GB 19900008723 (71) Applicant: CURRAN, Dennis, John, Gerard Dorking, Surrey BH5 5RL (GB)	(72) Inventor: CURRAN, Dennis, John, Gerard Dorking, Surrey BH5 5RL (GB) (74) Representative: Wolff, Francis Paul  Wolff & Lunt 1 Richfield Place Richfield Avenue Reading Berkshire RG1 8EQ Reading Berkshire RG1 8EQ (GB)