Method for pretreatment of filler, modified filler with a...

Details Method for pretreatment of filler, modified filler with a... Method for pretreatment of filler, modified filler with a...

D - Textiles, Paper

21

H

D21H 17/69 (2006.01) C08K 9/10 (2006.01) C09C 3/10 (2006.01) D21H 21/16 (2006.01)

Patent

CA 2405999

A modified filler used in the making of paper or the like, preparation of the filler and its use. The modified filler comprises a filler known as such, e.g. calcium carbonate, kaolin, talc, titanium dioxide, sodium silicate and aluminiumtrihydrate or their mixture, and a hydrophobic polymer made of polymerisable monomers, which is added to the filler as a polymer dispersion or a polymer solution.

Cette invention concerne une charge modifiée utilisée pour la fabrication de papier ou de produits analogues ainsi que le procédé de fabrication de ladite charge et son utilisation. La charge modifiée comprend une charge connue en tant que telle, par exemple du carbonate de calcium, du kaolin, du silicate de sodium ou de l'hydrate d'aluminium, ou bien un mélange de ces composés, et un polymère hydrophobe fait de monomères polymérisables que l'on ajoute à la charge sous forme de dispersion polymère ou solution polymère.

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