EP 0445953 B1 19950823 - Cationic polymer-modified filler material, process for its preparation and method for its use in papermaking.
Title (en)
Cationic polymer-modified filler material, process for its preparation and method for its use in papermaking.
Title (de)
Mit kationischem Polymer modifizierter Füllstoff, Verfahren zu seiner Herstellung und seine Verwendung in der Papierherstellung.
Title (fr)
Matériau de remplissage modifié par un polymère cationique, son procédé de préparation et son utilisation pour la fabrication.
Publication
Application
Priority
US 49090990 A 19900308
Abstract (en)
[origin: EP0445953A1] Material, such as natural ground and precipitated calcium carbonate, when modified by surface-treatment with a cationic polymer, has been discovered to be highly effective as a filler material in the making of paper. Utilization of this type of filler material greatly improves the papermaking process by reducing the usage of wet end sizing agent, improving opacity, improving filler retention in the furnish, and causing better drainage on the papermachine, all of which result in the production of a high quality paper having excellent opacity and tensile strength characteristics. The nature of the polymer-modified filler material, the process for its preparation and the method of its use in papermaking are disclosed.
IPC 1-7
IPC 8 full level
D21H 21/14 (2006.01); D21H 17/03 (2006.01); D21H 17/17 (2006.01); D21H 17/55 (2006.01); D21H 17/63 (2006.01); D21H 17/67 (2006.01); D21H 17/68 (2006.01); D21H 17/69 (2006.01); D21H 23/02 (2006.01)
CPC (source: EP KR)
D21H 17/17 (2013.01 - EP); D21H 17/55 (2013.01 - EP); D21H 17/675 (2013.01 - EP); D21H 17/68 (2013.01 - EP); D21H 17/69 (2013.01 - EP); D21H 21/00 (2013.01 - KR)
Designated contracting state (EPC)
BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0445953 A1 19910911; EP 0445953 B1 19950823; AU 632403 B2 19921224; AU 7272791 A 19911031; BR 9100933 A 19911105; CA 2037525 A1 19910909; CA 2037525 C 19951031; DE 69112239 D1 19950928; DE 69112239 T2 19960502; ES 2078436 T3 19951216; FI 102198 B1 19981030; FI 102198 B 19981030; FI 911147 A0 19910307; FI 911147 A 19910909; HK 1007778 A1 19990423; JP 2528557 B2 19960828; JP H05247886 A 19930924; KR 910017026 A 19911105; KR 940001536 B1 19940223
DOCDB simple family (application)
EP 91301574 A 19910227; AU 7272791 A 19910307; BR 9100933 A 19910307; CA 2037525 A 19910304; DE 69112239 T 19910227; ES 91301574 T 19910227; FI 911147 A 19910307; HK 98106946 A 19980626; JP 4383391 A 19910308; KR 910003634 A 19910307