FOAMABLE POLYSTYRENIC RESIN PARTICLE AND PRODUCTION METHOD
To provide a foamable polystyrenic resin particle that achieves a high foaming rate and yields a polystyrenic foamed resin molding with high thermal insulation performance.SOLUTION: A foamable polystyrenic resin particle contains a radiation heat transfer inhibitor. The foamable polystyrenic resin p...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To provide a foamable polystyrenic resin particle that achieves a high foaming rate and yields a polystyrenic foamed resin molding with high thermal insulation performance.SOLUTION: A foamable polystyrenic resin particle contains a radiation heat transfer inhibitor. The foamable polystyrenic resin particle has a sphericity of 0.985 or less. The foamer contains isobutane. Assuming the total amount of the polystyrenic resin composition and the foamer to be 100 wt.%, the isobutane is more than 2.7 wt.% and 6.0 wt.% or less.SELECTED DRAWING: None
【課題】本発明は、高発泡倍率が可能、かつ、高い断熱性能を有するポリスチレン系樹脂発泡成形体を与えうる発泡性ポリスチレン系樹脂粒子を提供することを目的とする。【解決手段】輻射伝熱抑制剤を含む発泡性ポリスチレン系樹脂粒子であって、前記発泡性ポリスチレン系樹脂粒子の真球度が０．９８５以下であり、前記発泡剤がイソブタンを含み、前記ポリスチレン系樹脂組成物及び発泡剤の総量１００重量％に対してイソブタンが２．７重量％超６．０重量％以下である、発泡性ポリスチレン系樹脂粒子。【選択図】なし |
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