(19)
(11)
EP 0 792 330 A1
(12)
(43)
Date of publication:
03.09.1997
Bulletin 1997/36
(21)
Application number:
95937278.0
(22)
Date of filing:
13.11.1995
(51)
International Patent Classification (IPC):
A61K
9/
00
( . )
C08B
37/
08
( . )
A61K
47/
36
( . )
(86)
International application number:
PCT/SE1995/001342
(87)
International publication number:
WO 1996/020730
(
11.07.1996
Gazette 1996/31)
(84)
Designated Contracting States:
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
LT LV
(30)
Priority:
14.11.1994
SE 19940003905
(71)
Applicant:
Astra Aktiebolag
151 85 Södertälje (SE)
(72)
Inventors:
ARTURSSON, Per
752 63 Uppsala (SE)
SCHIPPER, Nicolaas
151 63 Södertälje (SE)
(54)
A CHITOSAN POLYMER HAVING A SPECIFIC DEGREE OF ACETYLATION