发明名称 |
Process for producing thermoplastic resin hollow molded article |
摘要 |
A hollow molded article having no sink marks on its surface and having an excellent appearance is produced by filling a mold cavity with a resin being in a molten state and then ejecting at least a part of the resin by sucking through a resin-ejection opening and introducing gas through a gas-introduction opening into the resin inside of which being in a negative pressure. According to this process, the use of a high-pressure gas is not required.
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申请公布号 |
US6146579(A) |
申请公布日期 |
2000.11.14 |
申请号 |
US19980084493 |
申请日期 |
1998.05.27 |
申请人 |
SUMITOMO CHEMICAL CO., LTD. |
发明人 |
MATSUMOTO, MASAHITO;FUNAKOSHI, SATORU;MATSUBARA, SHIGEYOSHI |
分类号 |
B29C45/17;(IPC1-7):B29C49/06;B29D22/00 |
主分类号 |
B29C45/17 |
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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