发明名称 |
LAYERED RETROREFLECTIVE ELEMENTS |
摘要 |
A retroreflective element which may be used in pavement markings comprising a core having (a) a central layer having first and second major surfaces and at least one vertical surface, (b) a barrier layer applied to the first major surface, and (c) a barrier layer applied to the second major surface; and a plurality of optical elements embedded in the vertical surface(s) of the central layer. |
申请公布号 |
CA2244193(A1) |
申请公布日期 |
1997.08.07 |
申请号 |
CA19962244193 |
申请日期 |
1996.02.05 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
MAHONEY, WAYNE S.;PALAZZOTTO, MICHAEL C. |
分类号 |
E01F9/50;E01F9/559;G02B5/128 |
主分类号 |
E01F9/50 |
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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