| abstract |
Particulate, blowing agent-containing styrene polymers which, in addition to hydrocarbons with 4 to 6 carbon atoms or halogenated hydrocarbons in an amount of 3 to 10% by weight, additionally aliphatic hydrocarbons with 7 to 9 carbon atoms in amounts of 0.01 to 0.5% by weight %, each based on the styrene polymer. The particulate styrene polymers can be processed into foam blocks and molded parts with a perfectly smooth surface. |