Silica pigment particulates

Details Silica pigment particulates Silica pigment particulates

1995-06-07

2000-01-11

Koslow, C. Melissa

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

423339, 106482, C01B 33113, C01B 3318

Patent

active

060132345

ABSTRACT:
Dry, freely-flowing, water-insoluble but readily dispersible, solid and homogeneous silica pigment particulates essentially spheroidal in geometrical configuration and having a mean particle size in excess of 80.mu., preferably in excess of 150.mu., are prepared by atomizing to dryness a pulverulent aqueous suspension of silica having a solids contact in excess of 18%. Such silica pigment particulates, advantageously comprised of precipitated silica, are well adapted as reinforcing fillers for elastomeric matrices.

REFERENCES:
patent: 3383172 (1968-05-01), Biegler
patent: 3867156 (1975-02-01), Fukumoto et al.
patent: 4094771 (1978-06-01), Brandt et al.
patent: 4179431 (1979-12-01), Kilian et al.
patent: 5009874 (1991-04-01), Parmentier et al.
patent: 5395605 (1995-03-01), Billion et al.

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