(19)
(11) EP 0 513 331 A1

(12)

(43) Date of publication:
19.11.1992 Bulletin 1992/47

(21) Application number: 92901814.0

(22) Date of filing: 27.11.1991
(51) International Patent Classification (IPC): 
B01J 23/ 46( . )
C07C 67/ 10( . )
C07C 69/ 54( . )
C07B 61/ 00( . )
C07C 67/ 54( . )
C07C 69/ 56( . )
(86) International application number:
PCT/US1991/008757
(87) International publication number:
WO 1992/009554 (11.06.1992 Gazette 1992/13)
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IT LI LU NL SE

(30) Priority: 30.11.1990 US 19900621238

(71) Applicant: UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY CORPORATION
Danbury, Connecticut 06817-0001 (US)

(72) Inventors:
  • MOKHTARZADETH, Morteza
    Charleston, WV 25314 (US)
  • MURRAY, Rex, Eugene
    Charleston, WV 25313 (US)

(74) Representative: von Hellfeld, Axel, Dr. Dipl.-Phys. 
Wuesthoff & Wuesthoff Patent- und Rechtsanwälte Schweigerstrasse 2
D-81541 München
D-81541 München (DE)

   


(54) AZEOTROPIC ASSISTED TRANSVINYLATION TECHNOLOGY