| 摘要 |
PURPOSE:To obtain a foamable resin particle composition capable of preventing residue of blowing agent, having excellent heat distortion resistance, by coating foamable resin particles comprising styrene-acrylonitrile copolymer as a base material with a glycerin 6-9C fatty acid ester. CONSTITUTION:Foamable resin particles containing (A) a copolymer resin consisting of 15-40wt.% acrylonitrile monomer (preferably acrylonitrile), 40-85wt.% styrenic monomer (preferably styrene and/or alpha-methylstyrene) and 0-30wt.% another copolymerizable monomer (preferably N-phenylmaleimide) as a base resin and (B) 1-10wt.% (based on the base resin) readily volatile blowing agent (preferably n-butane or i-butane) are coated with (C) 0.001-0.5wt.% (based on foamable resin particles) glycerin 6-9C fatty acid ester (preferably glycerin caprylic acid ester) to give a foamable resin particle composition.
|
