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Non stretching melting of styrene type resin it pushes out to

机译:推出的苯乙烯型树脂的非拉伸熔融

摘要

PROBLEM TO BE SOLVED: To provide a process for preparing reclaimed foamable styrenic resin particles having a narrow particle size distribution in high yield, reclaimed foamable styrenic resin particles and molded articles obtainable by foaming the same. SOLUTION: A process for preparing reclaimed foamable styrenic resin particles comprises dispersing styrenic resin particles obtainable by non- orientation melting and pulverization of shrink molded articles of foamable styrenic resins in an aqueous medium and impregnating the particles with a ready-to-volatilize blowing agent. In this instance, the non-oriented melt of a styrenic resin is extruded into a sheet by an extruder by providing a slit for the sheet-like styrenic resin before cooling and setting up. Molded articles can be obtained by subjecting the reclaimed foamable styrenic resin particles to foaming.
机译:解决的问题:提供一种以高收率制备具有窄粒径分布的再生发泡苯乙烯树脂颗粒的方法,再生发泡苯乙烯树脂颗粒和通过将其发泡而获得的模制品。解决方案:制备再生的可发泡苯乙烯树脂颗粒的方法包括将可发泡苯乙烯树脂的收缩模塑制品的非取向熔融和粉碎得到的苯乙烯树脂颗粒分散在水性介质中,并用易挥发的发泡剂浸渍该颗粒。在这种情况下,在冷却和凝固之前,通过为片状苯乙烯树脂提供狭缝,通过挤出机将苯乙烯树脂的非取向熔体挤出成片。可以通过使再生的可发泡苯乙烯树脂颗粒发泡来获得模制品。

著录项

  • 公开/公告号JP4035885B2

    专利类型

  • 公开/公告日2008-01-23

    原文格式PDF

  • 申请/专利权人 日立化成工業株式会社;

    申请/专利号JP19980076888

  • 发明设计人 加藤 哲也;中岫 弘;

    申请日1998-03-25

  • 分类号C08J9/18;B29B9/04;B29C59/04;B29C67/20;B29K25/00;B29K105/04;

  • 国家 JP

  • 入库时间 2022-08-21 20:18:14

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