发明名称 |
Light stable fluorescent vinyl suitable for use as a highway retroreflective roll-up sign |
摘要 |
<p>Polyvinyl chloride ("PVC") compositions and articles are provided which are suitable for fabricating flexible, reflective roll-up roadway signs in which a fluorescent perylene imide dye is present in the PVC reflective layer. The compositions afford enhanced fluorescence durability of perylene imide fluorescent dyes in the articles through the combination of a polymeric hindered amine light stabilizing compound having molecular weight greater about 1500, and a benzophenone ultraviolet absorbing compound. The compositions and articles preferably further comprise a polymeric plasticizer having molecular weight in the range of about 2000 to about 8000 to provide enhanced retention of retroreflectivity in flexible PVC highway signs.</p> |
申请公布号 |
GB2373786(A) |
申请公布日期 |
2002.10.02 |
申请号 |
GB20020015296 |
申请日期 |
2000.12.21 |
申请人 |
* AVERY DENNISON CORPORATION |
发明人 |
DREW J * BUONI |
分类号 |
C08K5/132;C08K5/3435;C08K5/3437;C08L27/06;C08L67/02;(IPC1-7):G02B5/12;C09B57/14;C08K5/343;B32B27/30;B32B3/00 |
主分类号 |
C08K5/132 |
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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