Procedure for manufacture of aqueous suspensions of calcium...

Details Procedure for manufacture of aqueous suspensions of calcium... Procedure for manufacture of aqueous suspensions of calcium...

C - Chemistry, Metallurgy

01

F

C01F 11/18 (2006.01) C08K 3/26 (2006.01) C09C 1/02 (2006.01) D21H 19/38 (2006.01)

Patent

CA 2729848

The object of the invention consists of a process for the manufacture of aqueous suspensions of calcium carbonate using an acrylic polymer with an average by weight molecular weight of between 8,000 g/mole and 15,000 g/mole and a molar content of less than 20% of polymeric chains of molecular weight less than 3,000 g/mole .It also concerns the aqueous suspensions obtained, possibly dried, and their uses in the paper, paint, plastics and mastics industry.

Cette invention concerne un procédé de fabrication de suspensions aqueuses de carbonate de calcium utilisant un polymère acrylique avec un poids moléculaire moyen en poids compris entre 8 000 g/mole et 15 000 g/mole et un contenu molaire de moins de 20 % de chaînes polymères de poids moléculaire inférieur à 3 000 g/mole. Linvention concerne également les suspensions aqueuses obtenues, éventuellement séchées, et leurs utilisations dans lindustrie du papier, des peintures, des plastiques et des mastiques.

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