EP 0628658 B1 19971217 - Cellulosic, modified lignin and cationic polymer composition and process for making improved paper or paperboard
Title (en)
Cellulosic, modified lignin and cationic polymer composition and process for making improved paper or paperboard
Title (de)
Modifiziertes Lignin und kationisches Polymer enthaltende Zellulosezusammensetzung und Verfahren zur Herstellung von Papier oder Karton
Title (fr)
Composition cellulosique à base de lignine modifiée et d'un polymère cationique et procédé amélioré pour fabriquer du papier ou du carton
Publication
Application
Priority
- US 6925293 A 19930528
- US 6925893 A 19930528
Abstract (en)
[origin: EP0628658A1] A composition comprising an aqueous cellulosic furnish, a high molecular weight cationic polymer, and a modified lignin wherein the ratio of the cationic polymer to the modified lignin is from about 10:1 to 1:10 on an active basis is disclosed. A process employing this composition for making paper or paperboard having improved drainage, retention and formation properties is also provided.
IPC 1-7
IPC 8 full level
D21H 17/23 (2006.01); D21H 17/37 (2006.01); D21H 17/44 (2006.01); D21H 17/45 (2006.01)
CPC (source: EP)
D21H 17/23 (2013.01); D21H 17/375 (2013.01); D21H 17/44 (2013.01); D21H 17/455 (2013.01)
Citation (examination)
- US 3180787 A 19650427 - ADAMS JAMES W
- US 4913775 A 19900403 - LANGLEY JOHN [GB], et al
Designated contracting state (EPC)
BE DE DK ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0628658 A1 19941214; EP 0628658 B1 19971217; AU 6335694 A 19941201; AU 673252 B2 19961031; CA 2124102 A1 19941129; DE 69407346 D1 19980129; DE 69407346 T2 19980528; ES 2110184 T3 19980201; JP H07173790 A 19950711; NZ 260584 A 19951026
DOCDB simple family (application)
EP 94303673 A 19940523; AU 6335694 A 19940526; CA 2124102 A 19940520; DE 69407346 T 19940523; ES 94303673 T 19940523; JP 11559294 A 19940527; NZ 26058494 A 19940524