Compound of calcium carbonate and of tobermorites, its manufactu

Details Compound of calcium carbonate and of tobermorites, its manufactu Compound of calcium carbonate and of tobermorites, its manufactu

1974-11-01

1976-12-21

Douglas, Winston A.

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

106102, C09C 102

Patent

active

039986519

ABSTRACT:
A compound of calcium carbonate and of hydrated tobermorites, constituted of 70 to 15% tobermorites, which may contain free hydrated silica in amounts to 0 to 15% in weight expressed in SiO.sub.2, and of 30 to 85% calcium carbonate. The process includes completely hydrating white Portland cements between about 5 and 100.degree. C to form a paste having a dry extract of 5 to 70% by weight until at least a decrease in the pH-value occurs.
The compound is an industrial charge particularly for paper-making and paint-making industries.

REFERENCES:
patent: 2819172 (1958-01-01), Trief

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