发明名称 |
UV STABILIZED MULTI-LAYER STRUCTURES WITH DETECTABLE UV PROTECTIVE LAYERS AND A METHOD OF DETECTION |
摘要 |
<p>A UV stabilized multi-layer structure which has an easily visible UV protective layer comprises a UV protective layer and an underlying polymeric layer. The polymeric layer is either a polyester or a polycarbonate. The UV protective layer, which is exposed to UV radiation and protects the polymeric layer, comprises a UV absorbing compound, an optical brightener present in an amount sufficient to cause visual illumination of the UV protective layer upon exposure to a light source and a polymeric base material of either a polyester, polycarbonate or acrylic. Upon exposure to a UV light or white light source the UV protective layer is visibly illuminated. A method of detecting the UV protective layer in the UV stabilized multi-layer structure is also provided.</p> |
申请公布号 |
EP0935528(B1) |
申请公布日期 |
2001.02.28 |
申请号 |
EP19970951425 |
申请日期 |
1997.11.03 |
申请人 |
EASTMAN CHEMICAL COMPANY |
发明人 |
FAGERBURG, DAVID, RICHARD;VICARS, JACK, DONALD |
分类号 |
B32B27/18;B32B27/36;C08K5/00;C08L33/00;C08L67/00;C08L69/00;(IPC1-7):B32B27/18;C08K5/315;C08K5/35 |
主分类号 |
B32B27/18 |
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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