(19)
(11) EP 1 311 306 A2

(12)

(88) Date of publication A3:
20.06.2002

(43) Date of publication:
21.05.2003 Bulletin 2003/21

(21) Application number: 01959218.7

(22) Date of filing: 26.07.2001
(51) International Patent Classification (IPC)7: A61L 15/00
(86) International application number:
PCT/US0123/511
(87) International publication number:
WO 0200/9781 (07.02.2002 Gazette 2002/06)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 28.07.2000 US 221846 P

(71) Applicant: THE DOW CHEMICAL COMPANY
Midland, Michigan 48674 (US)

(72) Inventors:
  • KLIER, John
    Midland, MI 48642 (US)
  • FISK, Thomas, E.
    Midland, MI 48640 (US)
  • STEWART, Kenneth, B., Jr.
    Lakes Jackson, TX 77566 (US)

(74) Representative: Hayes, Adrian Chetwynd et al
Boult Wade Tennant,Verulam Gardens70 Gray's Inn Road
London WC1X 8BT
London WC1X 8BT (GB)

   


(54) SULFONATED SUBSTANTIALLY RANDOM INTERPOLYMER-BASED ABSORBENT MATERIALS