Process for manufacturing composite bodies made of plastics
    1.
    发明授权
    Process for manufacturing composite bodies made of plastics 有权
    塑料复合体制造工艺

    公开(公告)号:US6165300A

    公开(公告)日:2000-12-26

    申请号:US230539

    申请日:1999-01-28

    摘要: In order to manufacture compound composite bodies having at least two lay with a support material made completely or substantially from a polymer and with a porous layer firmly connected thereto, a substantially microwave-permeable polymer is utilized for the support material and a polymer having microwave absorbing properties is utilized for the porous layer. The polymer for the porous layer, treated with foaming agent, is heated with microwave energy up to the decomposition temperature of the foaming agent. The resulting polymer foam is sufficiently heated using microwave energy that the support material, at its bordering layer adjacent the foamed polymer, is sufficiently melted substantially due to heat conduction out of the foamed layer that, subsequent to cooling, a firm composite between the support material and the foamed polymer is effected. The porous layer can also consist essentially of polymer particles which melt together during the MW-irradiation and which are either pre-expanded or expanded during MW-irradiation through foaming agent additive.

    摘要翻译: PCT No.PCT / EP97 / 04490 371日期1999年1月28日 102(e)1999年1月28日PCT PCT 1997年8月18日PCT公布。 公开号WO98 / 07555 日期1998年2月26日为了制造具有至少两层的复合复合体,其具有完全或基本上由聚合物制成的支撑材料,并且与多孔层牢固地连接在一起,基本上是微波可透过的聚合物用于载体材料和 具有微波吸收特性的聚合物用于多孔层。 用发泡剂处理的多孔层聚合物用微波能量加热至发泡剂的分解温度。 所得到的聚合物泡沫体使用微波能充分加热,其邻近发泡聚合物的边界层的支撑材料基本上由于从发泡层的热传导而充分熔化,在冷却之后,载体材料 并进行发泡聚合物。 多孔层也可以基本上由聚合物颗粒组成,这些聚合物颗粒在MW照射期间一起熔化,并且在MW-照射期间通过发泡剂添加剂预扩展或膨胀。