专利名称：Method and apparatus for extrusion of
thermoplastic foam
发明人：Johnson, David Emil申请号：EP83304450.6申请日：19830802公开号：EP0104728A1公开日：19840404
专利附图：
摘要：Gaseous blowing agent is introduced into molten polystyrene by a
pneumatically activated piston (32) which injects the gas into the molten polystyrene as aresult of both the forward and return thrust of the piston (32).
申请人：MOBIL OIL CORPORATION
地址：150 East 42nd Street New York New York 10017 US
国籍：US
代理机构：Cooper, John Anthony
更多信息请下载全文后查看
因篇幅问题不能全部显示，请点此查看更多更全内容