(19)

(11)

EP 0 712 423 A1

(12)

(43) Date of publication: 22.05.1996 Bulletin 1996/21 (21) Application number: 95919032.0 (22) Date of filing: 05.05.1995

(51) International Patent Classification (IPC):  C08J 3/ 12( . ) B29B 17/ 04( . ) B29K 33/ 04( . ) B29B 17/ 00( . ) C08J 11/ 06( . ) (86) International application number: PCT/US1995/005672 (87) International publication number: WO 1995/033002 (07.12.1995 Gazette 1995/52)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL (30) Priority: 26.05.1994 US 19940249496 (71) Applicant: ARISTECH CHEMICAL CORPORARION Pittsburgh, PA 15219-2704 (US)	(72) Inventors: HOFFMAN, Ray, D. Butler, PA 16001 (US) RODE, Daniel, J. Coraopolis, PA 15108 (US) GODFREY, John, J. Murrysville, PA 15668 (US) THOMPSON, James, E. Pittsburgh, PA 15237 (US) KATHAWALLA, Imtiaz, A. Florence, KY 41042 (US) (74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät  Maximilianstrasse 58 80538 München 80538 München (DE)