Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1979-02-02
1980-12-16
Marquis, Melvyn I.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 39R, C08L 620
Patent
active
042396751
ABSTRACT:
Low density fillers or pigments adapted for use in paints, plastics, caulks and the like are produced by dispersing particulate materials of an average equivalent spherical diameter of 0.1 to 30 micrometers in an aqueous medium containing an acid-polymerizable resin. The dispersions thus produced are formed into spheroids which are heated to polymerize the resin and evaporate water therefrom so that voids are developed within the products. In this way the particles are bonded together and the product is provided with a protective coating of polymerized resin.
The products thus produced are relatively low in density and may embody various particulate materials which would be hydrated or otherwise adversely reacted with water or other constituents of the paint, plastics, or medium in which they are incorporated.
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Kane John J.
Marquis Melvyn I.
Sperry Albert
Zoda Frederick A.
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