(19)

(11)

EP 0 415 984 A1

(12)

(43) Date of publication: 13.03.1991 Bulletin 1991/11 (21) Application number: 89905940.0 (22) Date of filing: 14.04.1989

(51) International Patent Classification (IPC):  C08K 9/ 00( . ) (86) International application number: PCT/US1989/001583 (87) International publication number: WO 1989/011501 (30.11.1989 Gazette 1989/28)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 24.05.1988 US 19880198047 (71) Applicant: REEF INDUSTRIES, INC. Houston TX 77075 (US)	(72) Inventor: RAMSEY, Boyd, J. Houston, TX 77062 (US) (74) Representative: Brown, John David  FORRESTER & BOEHMERT Franz-Joseph-Strasse 38 D-80801 München D-80801 München (DE)