D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 17/69 (2006.01)
Patent
CA 2609411
The invention relates to a method for producing filled papers and filled paper products by adding an aqueous suspension of at least one finely particulate polymer-pigment hybrid to a paper-making stock and dewatering the paper-making stock while forming sheets. The polymer-pigment hybrid is obtained by grinding an aqueous suspension of at least inorganic pigment in the presence of at least one binder and optionally by drying the aqueous suspension so obtained and redispersing the dried polymer-pigment hybrid in water. The invention also relates to the polymer-pigment hybrids so obtained as fillers for producing filled paper or filled paper products.
L'invention concerne un procédé de fabrication de papier et de produits de papier contenant des charges par addition d'une suspension aqueuse d'au moins un hybride polymère/pigment à une pâte à papier de manière à former une feuille, l'hybride polymère/pigment étant fabriqué par mouture d'une suspension aqueuse d'au moins un pigment anorganique en présence d'au moins un liant et éventuellement séchage de la suspension aqueuse ainsi obtenue et redispersion de l'hybride polymère/pigment dans l'eau. L'invention concerne également l'utilisation des hybrides polymère/pigment ainsi obtenus en tant que charge pour la fabrication de papier et de produits de papier contenant des charges.
Blum Rainer
Gispert Norbert
Hamers Christoph
Hemel Ralf
Mahr Norbert
Basf Aktiengesellschaft
Robic
LandOfFree
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