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Expandable beads based on a polymer of a vinylaromatic compound containing blowing agent and plasticizer
Expandable beads based on a polymer of a vinylaromatic compound containing blowing agent and plasticizer
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机译:基于含发泡剂和增塑剂的乙烯基芳族化合物的聚合物的可膨胀珠
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摘要
The present invention relates to expandable beads based on a polymer of a vinylaromatic compound containing a blowing agent and, in an amount of 0.1 up to 2% wt, preferably 0.3 up to 1.5% wt calculated on the beads, of a plasticizer that is based on oligomers of styrene and/or alpha- methylstyrene having a number-average molecular weight (M.sub.n) in the range of 200 to 500, preferably of 260 to 460; and a process for preparing these expandable beads.
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