(19)
(11) EP 0 521 934 A1

(12)

(43) Date of publication:
13.01.1993 Bulletin 1993/02

(21) Application number: 91906377.0

(22) Date of filing: 04.03.1991
(51) International Patent Classification (IPC): 
A61K 6/ 00( . )
C08F 2/ 06( . )
C08F 220/ 06( . )
C08F 220/ 18( . )
 C08F 2/ 04( . )
C08F 20/ 02( . )
C08F 220/ 10( . )
C08F 222/ 06( . )
(86) International application number:
PCT/US1991/001455
(87) International publication number:
WO 1991/014716 (03.10.1991 Gazette 1991/23)
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IT LI LU NL SE

(30) Priority: 29.03.1990 US 19900501059
06.04.1990 US 19900505616

(71) Applicant: ISP INVESTMENTS INC.
Wilmington, Delaware 19801 (US)

(72) Inventors:
  • TAZI, Mohammed
    Wayne, NJ 07470 (US)
  • LOGIN, Robert, B.
    Oakland, NJ 07436 (US)
  • PLOCHOCKA, Krystyna
    Scotch Plains, NJ 07076 (US)
  • HALDAR, Rama, K.
    Randolph, NJ 07869 (US)
  • GANGADHARAN, Balgopal
    Caldwell, NJ 07006 (US)
  • PROSISE, William, E.
    Ramsey, NJ 07446 (US)

(74) Representative: Ford, Michael Frederick 
MEWBURN ELLIS York House 23 Kingsway
London WC2B 6HP
London WC2B 6HP (GB)

   


(54) COPOLYMERS OF MALEIC ANHYDRIDE AND ACRYLIC ACID USEFUL IN DENTURE ADHESIVES