(19)
(11) EP 0 615 519 A1

(12)

(43) Date of publication:
21.09.1994 Bulletin 1994/38

(21) Application number: 92925418.0

(22) Date of filing: 24.11.1992
(51) International Patent Classification (IPC): 
B01D 29/ 00( . )
B01D 29/ 35( . )
B01D 46/ 00( . )
B01D 63/ 06( . )
B01D 71/ 02( . )
C04B 35/ 185( . )
F28F 21/ 04( . )
B01D 29/ 31( . )
B01D 39/ 20( . )
B01D 46/ 24( . )
B01D 69/ 10( . )
B01J 35/ 04( . )
C04B 38/ 00( . )
(86) International application number:
PCT/US1992/010203
(87) International publication number:
WO 1993/011087 (10.06.1993 Gazette 1993/14)
(84) Designated Contracting States:
DE FR GB

(30) Priority: 05.12.1991 US 19910803292
05.12.1991 US 19910803296

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

(72) Inventors:
  • MOYER, John, R.
    Midland, MI 48642 (US)
  • HUGHES, Neal, N.
    Midland, MI 48642 (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) STRUCTURE FOR A FILTER OR A HEAT EXCHANGER AND A METHOD FOR MAKING THE STRUCTURE