(19)
(11) EP 0 586 541 A1

(12)

(43) Date of publication:
16.03.1994 Bulletin 1994/11

(21) Application number: 92912509.0

(22) Date of filing: 19.05.1992
(51) International Patent Classification (IPC): 
C08J 9/ 16( . )
B01J 13/ 22( . )
C08J 9/ 32( . )
B01J 13/ 20( . )
C08J 9/ 22( . )
C09D 7/ 12( . )
(86) International application number:
PCT/US1992/004156
(87) International publication number:
WO 1992/020465 (26.11.1992 Gazette 1992/29)
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE

(30) Priority: 24.05.1991 US 19910705545

(71) Applicant: PIERCE & STEVENS CORP.
Buffalo, NY 14240-1092 (US)

(72) Inventor:
  • MELBER, George E.
    DePew, NY 14043 (US)

(74) Representative: Calamita, Roberto 
Frank B. Dehn & Co. Imperial House 15-19 Kingsway
London WC2B 6UZ
London WC2B 6UZ (GB)

   


(54) PROCESS FOR DRYING MICROSPHERES