Method to produce mineral fillers containing hydrated calcium mo

Details Method to produce mineral fillers containing hydrated calcium mo Method to produce mineral fillers containing hydrated calcium mo

1980-11-26

1982-10-12

Dees, Carl F.

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

106309, 423600, C04B 3140

Patent

active

043537510

ABSTRACT:
A method of producing mineral fillers containing hydrated calcium monocarboaluminate.
Al(OH).sub.3, CaCO.sub.3 and Ca(OH).sub.2 are reacted together in the presence of water, the operating temperature range being of 50.degree. C.-100.degree. C. Although these materials are insoluble, a quick reaction occurs as well in a highly concentrated solid medium as in a diluted medium. According to a preferred embodiment, the amount of water is such to obtain a final dry matter content of 50%, and the substantially solid resulting paste is directly brought to the fluidity required for use by means of a defloculating agent.
Application to paper coating.

REFERENCES:
patent: 2636830 (1953-04-01), Wall
patent: 2958626 (1960-11-01), Schenck et al.
patent: 3494731 (1970-02-01), Reynolds
patent: 4238458 (1980-12-01), Misra

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