发明授权
- 专利标题: Ultra-flexible retroreflective sheeting with coated back surface
- 专利标题(中): 具有涂层背面的超柔性回射片材
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申请号: US626707申请日: 1996-04-01
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公开(公告)号: US5784197A公开(公告)日: 1998-07-21
- 发明人: Cheryl M. Frey , Bruce B. Wilson
- 申请人: Cheryl M. Frey , Bruce B. Wilson
- 申请人地址: MN St. Paul
- 专利权人: Minnesota Mining and Manufacturing Company
- 当前专利权人: Minnesota Mining and Manufacturing Company
- 当前专利权人地址: MN St. Paul
- 主分类号: G02B5/124
- IPC分类号: G02B5/124
摘要:
A retroreflective article comprising an ultra-flexible structured retroreflective sheeting having a front surface and a back surface, the sheeting retroreflecting light entering through the front surface, wherein the sheeting comprises an overlay film, a two-dimensional array of substantially independent structured elements, the structured elements bonded to the overlay film, and a sealing film forming the back surface of the sheeting and bonded to the overlay film between the structured elements; a plurality of indentations in the sealing film; and a seal coat located on the sealing film, wherein the seal coat at least partially fills the indentations in the sealing film.
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