Syntactic rigid PUR/PIR foam boardstock
    3.
    发明授权
    Syntactic rigid PUR/PIR foam boardstock 有权
    句式刚性PUR / PIR泡沫板

    公开(公告)号:US6166109A

    公开(公告)日:2000-12-26

    申请号:US159014

    申请日:1998-09-23

    摘要: The present invention relates to the use of hollow microspheres filled with a hydrocarbon, to introduce uniform cell geometries in syntactic foams having a bimodal cell structure. The rigid foam product includes from 20 to 80 percent by weight of the hollow microspheres, the microspheres having average diameters ranging from 80 to 200 microns. The microspheres are encapsulated from 80 to 20 percent by weight of a closed cell polyurethane foam, the cells of the foam having average diameters from 0.01 to 60 microns.

    摘要翻译: 本发明涉及填充有碳氢化合物的中空微球体的使用,以在具有双峰电池结构的复合泡沫中引入均匀的电池几何形状。 刚性泡沫产品包括20至80重量%的中空微球,微球的平均直径范围为80-200微米。 将微球体封装在封闭聚氨酯泡沫的80至20重量%之间,泡沫细胞的平均直径为0.01至60微米。