Primary particles of amorphous silica composite material, second

Details Primary particles of amorphous silica composite material, second Primary particles of amorphous silica composite material, second

1993-04-20

1994-12-06

McFarlane, Anthony

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

423331, 423332, C01B 3312

Patent

active

053708520

ABSTRACT:
The invention provides:
primary particles of amorphous silica composite material, characterized in that they are composed of numerous granular amorphous silica particles randomly attached to amorphous silica particles retaining the original configuration of calcium silicate crystals as starting crystals and having a crystalline appearance;
secondary particles of amorphous silica composite material, characterized in that they are composed of said primary particles randomly three-dimensionally interlocked with one another;
shaped bodies of amorphous silica composite material, characterized in that they are composed of either or both of said primary particles and said secondary particles randomly three-dimensionally interlocked with one another; and
processes for preparing said primary particles, said secondary particles or said shaped bodies thereof.

REFERENCES:
patent: 3301635 (1967-01-01), Bergna et al.
patent: 4294810 (1981-10-01), Taga et al.
patent: 4330519 (1982-05-01), Takahashi et al.
patent: 4992251 (1991-02-01), Aldcroft et al.

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