发明名称 |
EXTRUSION SYSTEM AND PROCESS FOR MINIMIZING COLOR CHANGE TIMES IN EXTRUSION OF THERMOPLASTICS |
摘要 |
An extrusion system includes a main extruder (1) and a secondary injection extruder (2). Both extruders are connected via a three-way valve (3). The main extrud er (1) has a mixing section (5) downstream of the junction point (4) with the secondary injection extruder (2). An accelerated switch between molding masses with different colors can be made by switching the three way valve. |
申请公布号 |
CA2220264(C) |
申请公布日期 |
2004.09.21 |
申请号 |
CA19972220264 |
申请日期 |
1997.11.05 |
申请人 |
ROEHM GMBH CHEMISCHE FABRIK |
发明人 |
MEIER-KAISER, MICHAEL |
分类号 |
B29C47/10;B29C47/58;B29C47/64 |
主分类号 |
B29C47/10 |
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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