发明名称 |
Multiple-layered sheeting apparatus and process therefor |
摘要 |
Disclosed is an apparatus and process for the production of multiple-layer film or sheeting having desirable surface characteristics, especially including uniformity of layer thickness and width. The apparatus includes a feedblock which selectively splits the coextruded streams, controls the flow thereof and applies the layers in a manner such that the thickness of the various layers can be more easily and accurately controlled across the width of the sheeting.
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申请公布号 |
US4443397(A) |
申请公布日期 |
1984.04.17 |
申请号 |
US19820408105 |
申请日期 |
1982.08.16 |
申请人 |
COSDEN TECHNOLOGY, INC. |
发明人 |
HAHN, GRANVILLE J.;RUTLEDGE, RALEIGH N. |
分类号 |
B29C47/06;B29C47/14;B29C47/58;B29C47/92;(IPC1-7):B29F3/04 |
主分类号 |
B29C47/06 |
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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