(19)

(11)

EP 0 450 055 A1

(12)

(43) Date of publication: 09.10.1991 Bulletin 1991/41 (21) Application number: 90916965.0 (22) Date of filing: 23.10.1990

(51) International Patent Classification (IPC):  C08J 3/ 20( . ) C08L 69/ 00( . ) (86) International application number: PCT/US1990/006127 (87) International publication number: WO 1991/005823 (02.05.1991 Gazette 1991/10)

(84) Designated Contracting States: BE DE FR GB IT NL SE (30) Priority: 23.10.1989 US 19890425785 (71) Applicant: THE DOW CHEMICAL COMPANY Midland, Michigan 48640 (US)	(72) Inventors: CHOU, Chai-Jing Missouri City, TX 77459 (US) FARAH, Hani Sugar Land, TX 77479 (US) MARKS, Maurice, Joel Lake Jackson, TX 77566 (US) OSBY, John Clute, TX 77531 (US) HERRON, Brenda, N. Lake Jackson, TX 77566 (US) (74) Representative: Casalonga, Alain  BUREAU D.A. CASALONGA - JOSSE Morassistrasse 8 D-80469 München D-80469 München (DE)