发明授权
- 专利标题: Method and apparatus for forming and applying retroreflective pavement markings
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申请号: US14247423申请日: 2014-04-08
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公开(公告)号: US09752287B2公开(公告)日: 2017-09-05
- 发明人: Steven Velicky
- 申请人: New York State Thruway Authority
- 申请人地址: US NY Albany
- 专利权人: New York State Thruway Authority
- 当前专利权人: New York State Thruway Authority
- 当前专利权人地址: US NY Albany
- 代理机构: Harris Beach PLLC
- 代理商 Neal L. Slifkin
- 主分类号: E01C11/00
- IPC分类号: E01C11/00 ; E01F9/576 ; E01F9/506 ; E01C23/00 ; E01C23/16 ; E01C23/22 ; G02B5/128
摘要:
A method for forming and applying retroreflective pavement markings comprising the steps of a) spraying the area with a hot epoxy binder, b) depositing particles of a microcrystalline ceramic element having a high refractive index onto the fresh epoxy binder, c) depositing relatively large spherical glass beads onto the fresh epoxy binder, and d) depositing relatively small spherical glass beads onto the fresh epoxy binder. The small beads provide high reflectivity in daytime and at night on dry pavement. The large beads provide superior reflectivity at night on damp pavement. The ceramic element particles provide high reflectivity when wet and during heavy rain. Where the pavement is subject to snowplowing, the marking may be inlaid in a recessed area in the pavement, the recess being about 100 mils deep, and the wet epoxy layer being about 20 mils thick.
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