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1. WO1992014881 - AQUEOUS SLUDGES OF FINELY-GROUND FILLERS AND THEIR USE FOR PRODUCING FILLER-CONTAINING PAPER

Publication Number WO/1992/014881
Publication Date 03.09.1992
International Application No. PCT/EP1992/000328
International Filing Date 17.02.1992
Chapter 2 Demand Filed 02.07.1992
IPC
D21H 17/37 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
17Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
20Macromolecular organic compounds
33Synthetic macromolecular compounds
34obtained by reactions only involving carbon-to-carbon unsaturated bonds
37Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
D21H 17/56 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
17Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
20Macromolecular organic compounds
33Synthetic macromolecular compounds
46obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
54obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
56Polyamines; Polyimines; Polyester-imides
D21H 17/69 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
17Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
63Inorganic compounds
67Water-insoluble compounds, e.g. fillers or pigments
69modified, e.g. by association with other compositions prior to incorporation in the pulp or paper
CPC
D21H 17/375
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
17Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
20Macromolecular organic compounds
33Synthetic macromolecular compounds
34obtained by reactions only involving carbon-to-carbon unsaturated bonds
37Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
375Poly(meth)acrylamide
D21H 17/56
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
17Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
20Macromolecular organic compounds
33Synthetic macromolecular compounds
46obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
54obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
56Polyamines; Polyimines; Polyester-imides
D21H 17/69
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
17Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
63Inorganic compounds
67Water-insoluble compounds, e.g. fillers, pigments
69modified, e.g. by association with other compositions prior to incorporation in the pulp or paper
Applicants
  • BASF AKTIENGESELLSCHAFT [DE]/[DE] (AllExceptUS)
  • PFOHL, Sigberg [DE]/[DE] (UsOnly)
  • AUHORN, Werner [DE]/[DE] (UsOnly)
  • STANGE, Andreas [DE]/[DE] (UsOnly)
  • LINHART, Friedrich [DE]/[DE] (UsOnly)
Inventors
  • PFOHL, Sigberg
  • AUHORN, Werner
  • STANGE, Andreas
  • LINHART, Friedrich
Common Representative
  • BASF AKTIENGESELLSCHAFT
Priority Data
P 41 05 919.026.02.1991DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) WÄSSRIGE ANSCHLÄMMUNGEN VON FEINTEILIGEN FÜLLSTOFFEN UND IHRE VERWENDUNG ZUR HERSTELLUNG VON FÜLLSTOFFHALTIGEM PAPIER
(EN) AQUEOUS SLUDGES OF FINELY-GROUND FILLERS AND THEIR USE FOR PRODUCING FILLER-CONTAINING PAPER
(FR) BOUES AQUEUSES DE MATIERES DE CHARGE FINEMENT PULVERISEES ET LEUR UTILISATION POUR PRODUIRE DU PAPIER CONTENANT DES CHARGES
Abstract
(DE)
Wäßrige Anschlämmungen von feinteiligen Füllstoffen, die zumindest teilweise mit Polymerisaten überzogen und dadurch erhältlich sind, daß man zu einer wäßrigen Anschlämmung von Füllstoffen nacheinander, jeweils bezogen auf die Füllstoffe, 0,1 bis 5 Gew.-% eines kationischen Verfestigers für Papier und 0,1 bis 5 Gew.-% eines nichtionischen und/oder anionischen Verfestigers und/oder nichtionischen oder anionischen Leimungsmittels für Papier zugibt, wobei die kationischen Verfestiger gegenüber den anionischen Verfestigern und/oder Leimungsmitteln in einer solchen Menge eingesetzt werden, daß die feinteiligen Füllstoffe eine kationische Ladung tragen und Verwendung der so erhältlichen wäßrigen Anschlämmungen von feinteiligen Füllstoffen für die Herstellung von füllstoffhaltigem Papier oder Karton sowie füllstoffhaltiger Pappe durch Zugabe der wäßrigen Anschlämmungen zu einem Papierstoff und Entwässern des Papierstoffs.
(EN)
Aqueous sludges of finely-ground fillers that are at least partially coated with polymers are produced by successively adding to an aqueous filler sludge 0.1 to 5 wt % of a cationic paper consolidating agent, 0.1 to 5 wt % of a non-ionic and/or anionic paper consolidating and/or sizing agent, with respect to the weight of fillers. The cationic consolidating agent is used in such an amount, with respect to the anionic consolidating and/or sizing agents, that the finely-ground fillers have a cationic charge. Also disclosed is the use of the thus obtained aqueous sludges of finely-ground fillers for producing filler-containing paper, cardboard and/or paperboard by adding the aqueous sludges to a paper pulp and by draining the paper pulp.
(FR)
On produit des boues aqueuses de matières de charge finement pulvérisées et, au moins partiellement, enrobées de polymères, en ajoutant successivement à une boue aqueuse de matières de charge 0,1 à 5 % en poids d'un agent cationique de consolidation du papier et/ou 0,1 à 5 % en poids d'un agent non ionique et/ou anionique de consolidation et/ou d'encollage du papier, par rapport au poids des matières de charge. On utilise une quantité d'agent cationique de consolidation, par rapport aux agents anioniques de consolidation et/ou d'encollage, telle que les matières de charge finement pulvérisées présentent une charge cationique. L'invention concerne également l'utilisation des boues aqueuses de matières de charge finement pulvérisées ainsi obtenues pour produire du papier, du carton ou du carton-pâte contenant des charges par adjonction des boues aqueuses à la pâte à papier et par déshydratation de la pâte à papier.
Also published as
Latest bibliographic data on file with the International Bureau