Chemische Werke Huls Aktiengesellschaft

Heinz Osterhoff

Horst Leithauser

Karl Trukenbrod

Josef-Karl Rigler

A process for preparing improved molding materials of expandable styrene polymers by coating the particles with glycerin esters of long-chain fatty acids. The coating comprises organosols of pulverulent glycerin esters having 14 to 24 carbon atoms in aliphatic hydrocarbons having 3 to 8 carbon atoms. The proportion of glycerin monoester is at most 40, but not less than 10% by weight and the particle size of the pulverulent ester is less than 100 microns. The molding materials are used to manufacture molded articles.

Method for preparing improved molding materials from coated fine

Fine particulate expandable styrene polymers have coatings applied thereto by:

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Marl, Germany

Heinz Osterhoff