发明公开
- 专利标题: COLORED RETROREFLECTIVE ARTICLES
- 专利标题(中): FARBIGERÜCKSTRAHLENDEARTIKEL
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申请号: EP15724411.2申请日: 2015-04-30
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公开(公告)号: EP3140684A1公开(公告)日: 2017-03-15
- 发明人: NIWAS, Shri , MCCOY, Michael A. , XIA,Ying
- 申请人: 3M Innovative Properties Company
- 申请人地址: 3M Center P.O.Box 33427 St. Paul, MN 55133-3427 US
- 专利权人: 3M Innovative Properties Company
- 当前专利权人: 3M Innovative Properties Company
- 当前专利权人地址: 3M Center P.O.Box 33427 St. Paul, MN 55133-3427 US
- 代理机构: Herzog, Fiesser & Partner Patentanwälte PartG mbB
- 优先权: US201461990989P 20140509
- 国际公布: WO2015171406 20151112
- 主分类号: G02B5/128
- IPC分类号: G02B5/128
摘要:
Retroreflective articles include a layer of optical elements, the layer of optical elements being divided into at least a first segment (110) and second segment (120), and a bead bond layer (170) containing a colorant. The optical elements are partially embedded in the bead bond layer. The optical elements include transparent microspheres (140), a transparent polymeric layer (180), and at least one reflective layer. In the first segment of optical elements, the reflective layer is a dielectric reflective layer (150), and in the second segment of optical elements, the reflective layer is a reflective metallic layer (160). The retroreflective articles have improved wash durability.
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