发明名称 |
PAVEMENT MARKING, REFLECTIVE ELEMENTS, AND METHODS OF MAKING MICROSPHERES |
摘要 |
A retroreflective article comprising first transparent microspheres and second transparent microspheres having an index of refraction within a range from 1.5 to 2.0, wherein the first and second transparent microspheres are at least partially embedded in a binder and the first microspheres have an index of refraction of at least 2.10 and comprise
at least 50 mol-% TiO 2 ; and
at least 5 mol-% of one or more metal oxides selected from oxides of lanthanide series elements and yttrium. |
申请公布号 |
EP1954640(A4) |
申请公布日期 |
2009.05.06 |
申请号 |
EP20060837616 |
申请日期 |
2006.11.14 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
FREY, MATTHEW H.;ROSENFLANZ, ANATOLY Z.;BUDD, KENTON D. |
分类号 |
C03C3/12;C03C10/00;E01F9/04 |
主分类号 |
C03C3/12 |
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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