发明名称 |
Low compression screw |
摘要 |
A method of injection molding or extruding a polymer composition having a predetermined bulk density associated with particles, granules or pellets of the polymer composition and a predetermined melt density when the polymer composition is fully melted and compressed. The method of the invention employs a screw having a volume compression ratio that is greater than or equal to the ratio of the predetermined melt density to the predetermined bulk density of the polymer composition and up to 1.25x the ratio of the predetermined melt density to the predetermined bulk density of the polymer composition.
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申请公布号 |
US2005041522(A1) |
申请公布日期 |
2005.02.24 |
申请号 |
US20030660236 |
申请日期 |
2003.09.11 |
申请人 |
LEVEQUE ALAIN YVES;SCHIRMER KARL ADOLF |
发明人 |
LEVEQUE ALAIN YVES;SCHIRMER KARL ADOLF |
分类号 |
B29C47/60;(IPC1-7):B29B7/42 |
主分类号 |
B29C47/60 |
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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