发明名称 |
Molding multi-layered articles using coinjection techniques |
摘要 |
A multi-cavity coinjection mold and method for simultaneously producing a plurality of multi-layered articles comprising: a mold structure defining a plurality of mold cavities; a first supply source for supplying metered amounts of a first molding material; a second supply source for supplying metered amounts of a second molding material; a hot runner system in communication with the first and second supply sources for conveying the metered amounts of the first and the second materials separately to a region proximate each of the cavities; the region comprising having a pin controlled passage leading to proximate cavity by way of a gate having the same cross-section as the passage, the pin scavenging material from the passage and providing cavity packing.
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申请公布号 |
US6382946(B1) |
申请公布日期 |
2002.05.07 |
申请号 |
US19980053594 |
申请日期 |
1998.04.01 |
申请人 |
DTL TECHNOLOGY LIMITED PARTNERSHIP |
发明人 |
BECK MARTIN H.;ROLLEND GEORGE F.;MUSZYNSKI JOHN H. |
分类号 |
B29C45/16;(IPC1-7):B29C45/16;B29C45/22 |
主分类号 |
B29C45/16 |
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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