CONTINUOUS PROCESS FOR MANUFACTURING A SHAPED FOAM ARTICLE
    1.
    发明申请
    CONTINUOUS PROCESS FOR MANUFACTURING A SHAPED FOAM ARTICLE 审中-公开
    制造形状泡沫制品的连续工艺

    公开(公告)号:US20110229693A1

    公开(公告)日:2011-09-22

    申请号:US13129831

    申请日:2009-12-01

    IPC分类号: B32B3/30 C08J9/06

    摘要: The present invention is a method to manufacture shaped foam article. Specifically, the present invention is a method of extruding a styrenic polymer with a blowing agent to form a foam polymer plank having a density gradient and shaping the surface of the foam plank having the lowest density by passing the foam plank through one or more sets of rolls. Preferably, the foam has a vertical compressive balance (Rv) equal to or greater than 0.4 and more preferably, the foam has a cell gas pressure less than 1 atmosphere and/or an open cell content of equal to or less than 20 percent.

    摘要翻译: 本发明是制造成形泡沫制品的方法。 具体地,本发明是一种用发泡剂挤出苯乙烯类聚合物以形成具有密度梯度的泡沫聚合物板的方法,并通过将泡沫板通过一个或多个组来形成具有最低密度的泡沫板的表面 劳斯莱斯。 优选地,泡沫具有等于或大于0.4的垂直压缩平衡(Rv),更优选地,泡沫具有小于1大气压的气泡压力和/或等于或小于20%的开孔含量。