FILLER COMPOSITION Russian patent published in 2015 - IPC D21H17/63 

FIELD: chemistry.

SUBSTANCE: invention relates to filler composition, containing a) filler, b) cationic inorganic compound, c) cationic organic compound and d) anionic polysaccharide, where filler is present in amount of at least about 1 wt %, calculated per the total weight of composition, anionic polysaccharide is present in amount from about 1 to about 100 kg/ton, calculated per filler weight, and where composition in fact does not contain fibres. Invention also relates to filler composition, containing a), b), c) and d), as stated above, where filler is present in amount of at least about 1 wt %, calculated per the total weight of composition, each of cationic inorganic and organic compounds is present in amount from about 0 to about 30 kg/ton, calculated per filler weight, with composition containing at least one of cationic inorganic and organic compounds and anionic polysaccharide has degree of replacement with stoichiometrically excessive anionic groups up to 0.65. Invention also relates to method of obtaining filler composition, which includes mixing a), b), c) and d), as stated above. Invention also relates to filler composition, obtained by said method, application of filler composition as additive to water cellulose suspension in the process of paper production and method of obtaining paper, which includes addition of filler composition to water cellulose suspension. Invention also relates to paper, obtained by claimed method, and paper, including filler composition.

EFFECT: improved properties of final product.

38 cl, 1 dwg, 6 tbl