Styrene polymer foam and the preparation thereof
    1.
    发明授权
    Styrene polymer foam and the preparation thereof 失效
    苯乙烯聚合物泡沫及其制备方法

    公开(公告)号:US4085073A

    公开(公告)日:1978-04-18

    申请号:US737887

    申请日:1976-11-02

    摘要: Stable medium density large cell size styrene polymer foam is extruded in large sections employing as blowing agents: chlorofluoromethane, bromochlorodifluoromethane alone or in admixture with minor quantities of other halogen containing carbon compounds to provide machinable foams of good dimensional stability.

    摘要翻译: 稳定的中等密度的大单元尺寸的苯乙烯聚合物泡沫塑料大部分挤出,使用作为发泡剂:氯氟甲烷,溴氯二氟甲烷单独或与少量其它含卤素的碳化合物混合,以提供具有良好尺寸稳定性的可加工泡沫。