EXPANDABLE THERMOPLASTIC POLYMER PARTICLES BASED ON POLYOLEFIN/STYRENE POLYMER MIXTURES USING ISOPENTANE OR CYCLOPENTANE AS A BLOWING AGENT

摘要

Disclosed are expandable thermoplastic polymer particles that are based on mixtures of styrene polymers and polyolefins and contain a mixture of C3 to C8 hydrocarbons as a blowing agent, said hydrocarbons containing 25 to 100 percent by weight of isopentane or cyclopentane relative to the total weight of the blowing agent.