Light stable fluorescent vinyl suitable for use as a highway retroreflective roll-up sign,申请号GB20020015296-传众专利搜索

Light stable fluorescent vinyl suitable for use as a highway retroreflective roll-up sign

申请公布号：GB2373786(A)

申请号：GB20020015296

申请日期：2000.12.21

申请公布日期：2002.10.02

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

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>