(19)
(11) EP 0 096 074 A1

(12)

(43) Date of publication:
21.12.1983 Bulletin 1983/51

(21) Application number: 83900393.0

(22) Date of filing: 20.12.1982
(51) International Patent Classification (IPC): 
A61K 31/ 04( . )
A61K 9/ 22( . )
A61K 31/ 13( . )
A61K 9/ 00( . )
A61K 9/ 28( . )
A61K 31/ 49( . )
(86) International application number:
PCT/US1982/001771
(87) International publication number:
WO 1983/002056 (23.06.1983 Gazette 1983/15)
(84) Designated Contracting States:
AT BE CH DE FR GB LI LU NL SE

(30) Priority: 18.12.1981 US 19810332126
18.12.1981 US 19810332127
18.12.1981 US 19810332128

(71) Applicant: Key Pharmaceuticals, Inc.
Miami, Florida 33169 (US)

(72) Inventor:
  • KEITH, Alec
    Miami, FL 33169 (US)

(74) Representative: Werner, Hans-Karsten, Dr., et al 
Patentanwälte Von Kreisler-Selting-Werner Postfach 10 22 41
D-50462 Köln
D-50462 Köln (DE)

   


(54) EXPANDABLE LATTICE OF POLYVINYL ALCOHOL AND POLYETHYLENE GLYCOL