Process for the production of platy precipitated calcium...

Details Process for the production of platy precipitated calcium... Process for the production of platy precipitated calcium...

2006-11-14

2006-11-14

Hendrickson, Stuart (Department: 1754)

Chemistry of inorganic compounds

Carbon or compound thereof

Oxygen containing

C423S161000, C423S165000, C423S430000, C106S464000, C524S788000

Reexamination Certificate

active

07135157

ABSTRACT:
A process for the preparation of platy precipitated calcium carbonate comprising the steps of providing a suspension of calcium hydroxide, carbonating the suspension of calcium hydroxide, adding a polyacrylate to the suspension prior to the completion of carbonation to precipitate platy calcium carbonate. Also provided are a paper that is filled and a paper that is coated using the platy precipitated calcium carbonate according to the present invention.

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“Precipitation of Calcium Carbonate in Aqueous Systems”, Z. Amjad, Tenside Surf. Det. 36 (1999), pp. 162-167.

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