发明名称 |
Process for injection foaming, and machine and composition therefore |
摘要 |
A process for injection-foaming a thermoplastic resin by using an injection molding machine with a two-stage-compression screw, injecting a physical foaming agent into the cylinder of the machine at a pressure lower than the storage pressure of the physical foaming agent, mixing it with a melted resin and expanding the volume of the cavity of the mold at the time of injection, and an injection molding machine and resin composition suitable therefore.
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申请公布号 |
US2002017734(A1) |
申请公布日期 |
2002.02.14 |
申请号 |
US20010885053 |
申请日期 |
2001.06.21 |
申请人 |
MITSUI CHEMICALS, INC. |
发明人 |
SUGIHARA EIICHI;ERIGUCHI MICHIO;MISUMI MASAKI |
分类号 |
B29C44/34;B29C44/58;(IPC1-7):B29C44/02;C08J9/00;C08K3/00 |
主分类号 |
B29C44/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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