C - Chemistry – Metallurgy – 09 – C
Patent
C - Chemistry, Metallurgy
09
C
C09C 1/36 (2006.01) C09C 1/00 (2006.01) C09C 1/02 (2006.01) C09C 1/42 (2006.01) C09C 3/04 (2006.01) C09C 3/06 (2006.01) D21H 17/67 (2006.01) D21H 17/69 (2006.01) D21H 19/38 (2006.01) D21H 19/40 (2006.01)
Patent
CA 2247968
This invention relates to a pigment particle product and a method for its preparation. According to the invention pigment particles, such as kaolin, natural calcium carbonate or titanium dioxide, and precipitated calcium carbonate are mixed together in an aqueous phase at pH 6-11, which causes the pigment particles to become coated with particles of precipitated calcium carbonate, the brightness of the product is excellent, and it is quite inexpensive to produce.
La présente invention concerne des particules de pigmentation et leur procédé de préparation. Aux termes de la présente invention, des particules de pigmentation, du kaolin par exemple, du carbonate de calcium naturel ou du dioxyde de titane sont mélangés à un précipité de carbonate de calcium en phase aqueuse de pH compris entre 6 et 11. Il en résulte un enrobage des particules de pigmentation par les particules du précipité de carbonate de calcium. La brillance du produit est excellente et son coût de fabrication est faible.
Fp-Pigments Oy
Gowling Lafleur Henderson Llp
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