发明名称 |
Integral composite profile of cellular and non-cellular resins and a dual extrusion method for its manufacture |
摘要 |
The dual extrusion and fusion of cellular and non-cellular resin extrudates produces an integral composite profile having a tongue and groove interlock. The resins are extruded through a common die having overlapping orifices. A bulbous tongue of one extrudate is encapsulated by finger-like projections of a second extrudate and the mated profiles are pulled through a vacuumized sizing box adapted to sealingly receive the cellular portion and to freely receive the non-cellular portion.
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申请公布号 |
US4690862(A) |
申请公布日期 |
1987.09.01 |
申请号 |
US19840687058 |
申请日期 |
1984.12.28 |
申请人 |
GOSSEN CORPORATION |
发明人 |
HOFFMANN, DANIEL J. |
分类号 |
B29C44/22;B29C44/50;B29C47/00;B29C47/04;B29C59/02;B29C65/00;B29C69/00;B29K105/04;(IPC1-7):B29C67/22;B29C47/02 |
主分类号 |
B29C44/22 |
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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