Low brightness magnesium silicate filler and methods

Details Low brightness magnesium silicate filler and methods Low brightness magnesium silicate filler and methods

1987-04-06

1988-10-25

Doll, John

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

423326, C01B 3324

Patent

active

047802979

ABSTRACT:
Low structure magnesium silicate pigment is useful as a low cost, low brightness filler for newsprint. The magnesium silicate is prepared by dissolving a serpentine mineral in sulfuric acid and reacting the resulting solution with an alkali metal silicate to precipitate a magnesium silicate pigment.

REFERENCES:
patent: 3325276 (1967-06-01), Feller
patent: 3328124 (1967-06-01), Mays et al.
patent: 3328125 (1967-06-01), Mays et al.
patent: 3401015 (1968-09-01), Ninger et al.
patent: 3437441 (1969-04-01), Mays et al.
patent: 4277449 (1981-07-01), Lalancette
Cosmetic Properties and Structure of Fine-Particle Synthetic Precipitated Silicas, J. Soc. Cosmet. Chem., 29, 497-521 (Aug. 1978).

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