发明名称 |
Light transparent body of coextruded synthetic resin |
摘要 |
What is disclosed is a light-transparent body comprising a first coextruded layer of a first extrudable light-transparent synthetic resin and a second coextruded layer of a second extrudable light-transparent synthetic resin different from said first resin, wherein said first and second coextruded layers are adjacent and wherein at least said first layer contains a dyestuff capable of fluorescing in the visible region and said second, adjacent, layer is free of the dyestuff present in said first layer.
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申请公布号 |
US4477521(A) |
申请公布日期 |
1984.10.16 |
申请号 |
US19820367269 |
申请日期 |
1982.04.12 |
申请人 |
ROEHM GMBH |
发明人 |
LEHMANN, JUERGEN;VETTER, HEINZ;ARNOLD, WOLFGANG |
分类号 |
B32B7/02;B29C47/06;B29C47/92;B32B27/18;B32B27/20;(IPC1-7):B32B27/36 |
主分类号 |
B32B7/02 |
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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