(19)

(11)

EP 0 388 424 A1

(12)

(43) Date of publication: 26.09.1990 Bulletin 1990/39 (21) Application number: 88910299.0 (22) Date of filing: 11.10.1988

(51) International Patent Classification (IPC):  C08K 5/ 1515( . ) C08L 23/ 08( . ) C08L 91/ 06( . ) C08L 27/ 08( . ) C08L 23/ 30( . ) (86) International application number: PCT/US1988/003515 (87) International publication number: WO 1989/003411 (20.04.1989 Gazette 1989/09)

(84) Designated Contracting States: BE CH DE FR GB IT LI NL SE (30) Priority: 09.10.1987 US 19870107141 (71) Applicant: THE DOW CHEMICAL COMPANY Midland Michigan 48640-1967 (US)	(72) Inventors: BETSO, Stephen, R. Midland, MI 48640 (US) FOYE, Duane, F. Merrill, MI 48637 (US) (74) Representative: Burford, Anthony Frederick, et al  W.H. Beck, Greener & Co. 7 Stone Buildings Lincoln's Inn London WC2A 3SZ London WC2A 3SZ (GB)