(19)
(11) EP 1 092 058 A1

(12)

(43) Date of publication:
18.04.2001 Bulletin 2001/16

(21) Application number: 99955305.0

(22) Date of filing: 01.06.1999
(51) International Patent Classification (IPC)7D21C 1/10, D21C 3/26, D21C 3/20, D21C 3/04, D21C 3/02
(86) International application number:
PCT/US9912/099
(87) International publication number:
WO 9963/149 (09.12.1999 Gazette 1999/49)
(84) Designated Contracting States:
DE ES FI GB IT PT SE

(30) Priority: 02.06.1998 US 87658 P
27.05.1999 US 320956 P

(71) Applicants:
  • The United States Of America, Represented by The Secretary Of Agriculture
    Madison, WI 53705-2398 (US)
  • EMORY UNIVERSITY
    Atlanta, GA 30322 (US)

(72) Inventors:
  • SPRINGER, Edward, L.
    Madison, WI 53711 (US)
  • ATALLA, Rajai, H.
    Verona, WI 53593 (US)
  • WEINSTOCK, Ira, A.
    Atlanta, GA 30329 (US)

(74) Representative: Pohl, Manfred, Dr. 
PatentanwaltKirchenhang 32 b
21073 Hamburg
21073 Hamburg (DE)

   


(54) METHOD FOR SELECTIVELY DELIGNIFYING LIGNOCELLULOSIC MATERIALS