发明名称 |
RETROREFLECTIVE PAVEMENT MARKINGS |
摘要 |
Pavement markings having a substrate with a first major surface and a second major surface; and a plurality of retroreflective elements (100) disposed along the first major surface of the substrate, the retroreflective elements each having a solid spherical core (110) and at least a first complete concentric optical interference layer (120) overlying core. In some embodiments, the retroreflective elements of the pavement marking further include a second complete concentric optical interference layer overlying the first complete concentric optical interference layer. In still other embodiments, the retroreflective elements of the pavement markings further include a third complete concentric optical interference layer overlying the second complete concentric optical interference layer. |
申请公布号 |
EP2235266(A1) |
申请公布日期 |
2010.10.06 |
申请号 |
EP20080868441 |
申请日期 |
2008.12.04 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
BUDD, KENTON D.;FREY, MATTHEW H.;HAAS, CHRISTOPHER K.;KRISHNAN, VIVEK |
分类号 |
E01F9/04;G02B5/128 |
主分类号 |
E01F9/04 |
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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