(19)

(11)

EP 0 650 501 A1

(12)

(43) Date of publication: 03.05.1995 Bulletin 1995/18 (21) Application number: 94916718.0 (22) Date of filing: 10.05.1994

(51) International Patent Classification (IPC):  C08G 18/ 10( . ) C08G 18/ 63( . ) C08G 18/ 48( . ) (86) International application number: PCT/US1994/005173 (87) International publication number: WO 1994/026800 (24.11.1994 Gazette 1994/26)

(84) Designated Contracting States: BE DE ES FR GB IT (30) Priority: 12.05.1993 JP 19930132352 12.05.1993 JP 19930132364 (71) Applicants: THE DOW CHEMICAL COMPANY Midland, Michigan 48640 (US) DOW MITSUBISHI KASEI LIMITED Minato-ku, Tokyo 105 (JP)	(72) Inventors: MIYAZAKI, Yoshiaki Minamitsuru-gun Yamanashi 401-05 (JP) MIZUMURA, Kazuo Kawasaki-shi Kanagawa 214 (JP) (74) Representative: Raynor, John  W.H. Beck, Greener & Co 7 Stone Buildings Lincoln's Inn London WC2A 3SZ London WC2A 3SZ (GB)