PROCESS FOR EXTRUDING FOAMED STYRENE POLYMERS WITH -g(a)-POLYOLEFIN ADDITIVES AND UTILIZING RECYCLED MATERIAL AND THE COMPOSITIONS FOR PROCESSING.

摘要

An improved foamable vinyl aromatic polymer composition and a process for preparing a vinyl aromatic polymer foam having incorporated therein a blend of alpha-olefin polymers are disclosed. The blend of alpha-olefin polymers may be virgin material or a portion of recycle feedstream, the recycle feedstream being prepared from adhesive film faced extruded vinyl aromatic foam laminate scrap. Foam materials having improved solvent resistance, ultraviolet light stability, and adhesive characteristics are prepared from the composition and process.