Preparing open-cell polymer foam, useful to prepare sound and thermal insulation material, comprises preparing melt from thermoplastic polymer, dissolving melt in organic nucleating agent, reacting melt with blowing agent and extruding

摘要

Preparing an open-cell polymer foam comprises preparing a melt from a thermoplastic polymer, dissolving the melt in an organic nucleating agent, reacting the melt with a blowing agent and extruding the melt. An independent claim is included for the open-cell polymer foam obtained by the above process.