Dry process for the production of plastic-coated inorganic subst

Details Dry process for the production of plastic-coated inorganic subst Dry process for the production of plastic-coated inorganic subst

1974-02-01

1976-06-29

Gwinnell, Harry J.

Coating processes

Particles, flakes, or granules coated or encapsulated

Inorganic base

427341, B05D 700

Patent

active

039670066

ABSTRACT:
Dry process for the production of inorganic granular substances coated with plastics, characterized in that a radical-polymerizable vinylic monomer carried on the surface of an inorganic granular substance is brought in a gaseous phase into contact with gaseous sulfur dioxide to effect polymerization of the monomer. The resulting plastic-coated inorganic substances are useful in various fields of industry, for example, as fillers, construction materials, molding materials, electrode materials, delayed-action fertilizers, etc.

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patent: 2876133 (1959-03-01), Sler et al.
patent: 3157527 (1964-11-01), Fournet et al.
patent: 3219476 (1965-11-01), Robbins
patent: 3448073 (1969-06-01), McManimie
patent: 3468828 (1969-09-01), Perrins et al.
patent: 3475307 (1969-10-01), Knox et al.
patent: 3519593 (1970-07-01), Bolger
patent: 3607365 (1971-09-01), Lindlof
patent: 3635879 (1972-01-01), Baer et al.
patent: 3661620 (1972-05-01), Dekking et al.

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