(19)
(11) EP 0 563 261 A1

(12)

(43) Date of publication:
06.10.1993 Bulletin 1993/40

(21) Application number: 92903140.0

(22) Date of filing: 13.12.1991
(51) International Patent Classification (IPC): 
B01D 39/ 20( . )
C01B 39/ 06( . )
C04B 38/ 00( . )
C30B 29/ 62( . )
F01N 3/ 28( . )
C01B 33/ 26( . )
C04B 30/ 02( . )
C30B 9/ 00( . )
F01N 3/ 022( . )
F02B 3/ 06( . )
(86) International application number:
PCT/US1991/009373
(87) International publication number:
WO 1992/011219 (09.07.1992 Gazette 1992/17)
(84) Designated Contracting States:
BE DE FR GB IT NL

(30) Priority: 21.12.1990 US 19900633576
21.12.1990 US 19900633579
21.12.1990 US 19900633580

(71) Applicant: THE DOW CHEMICAL COMPANY
Midland, Michigan 48640 (US)

(72) Inventors:
  • DOTY, Peter, A.
    Midland, MI 48640 (US)
  • MOYER, John, R.
    Midland, MI 48642 (US)
  • HUGHES, Neal, N.
    Midland, MI 48642 (US)
  • BRUBAKER, Burton, D.
    Midland, MI 48640 (US)

(74) Representative: Burford, Anthony Frederick 
W.H. Beck, Greener & Co. 7 Stone Buildings Lincoln's Inn
London WC2A 3SZ
London WC2A 3SZ (GB)

   


(54) PREPARATION AND USE OF MULLITE WHISKER NETWORKS