Process for preparing finely divided hydrophobic oxide particles

Details Process for preparing finely divided hydrophobic oxide particles Process for preparing finely divided hydrophobic oxide particles

1974-08-12

1978-01-10

Smith, Ronald H.

Coating processes

Particles, flakes, or granules coated or encapsulated

Inorganic base

106288B, 106308Q, B23K 3102, B23K 3538

Patent

active

040680240

ABSTRACT:
A process for preparing hydrophobic finely divided particles of oxides of metals and/or oxides of silicon by chemically bonding hydrocarbon radicals to the surface of the oxide particles, said process comprising intensively mixing oxide particles having a water content less than about 1% by weight with a hydrolyzable metal or metalloid compound containing OR groups, wherein said compound is an ester of the general formula:

REFERENCES:
patent: 2027931 (1936-01-01), Ray
patent: 2657149 (1953-10-01), Sler
patent: 2721855 (1955-10-01), Kin
patent: 2768909 (1956-10-01), Haslam
patent: 2881566 (1959-04-01), Badger
patent: 3085905 (1963-04-01), Prevot et al.
patent: 3556830 (1971-01-01), Charrin et al.
patent: 3617333 (1971-11-01), Brown
patent: 3649588 (1972-03-01), Kennedy-Skipton
patent: 3713886 (1973-01-01), Fulton et al.
patent: 3920865 (1975-11-01), Laufer et al.

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