- 专利标题: Retroreflective sheeting including a substantially amorphous polymeric layer
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申请号: US14913269申请日: 2014-08-14
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公开(公告)号: US09971074B2公开(公告)日: 2018-05-15
- 发明人: Reema Chatterjee , Stephen A. Johnson , Robert F. Watkins , Bimal V. Thakkar
- 申请人: 3M INNOVATIVE PROPERTIES COMPANY
- 申请人地址: US MN Saint Paul
- 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: US MN Saint Paul
- 代理商 Trisha D. Adamson
- 国际申请: PCT/US2014/050982 WO 20140814
- 国际公布: WO2015/026610 WO 20150226
- 主分类号: G02B5/124
- IPC分类号: G02B5/124 ; B29D11/00 ; B32B7/12 ; B32B27/08 ; B32B27/32 ; B32B27/34 ; B32B3/30 ; B32B27/36 ; B32B3/10 ; B32B3/14 ; B32B3/18 ; B29K67/00
摘要:
The present application generally relates to retroreflective articles and methods of making retroreflective articles. The retroreflective articles include a substantially amorphous polymeric layer between the body layer and the discrete truncated cube corner elements. The substantially amorphous polymeric layer absorbs, dissipates, and/or accommodates at least some of the stress forces placed on the retroreflective article during processing. As a result, discrete truncated cube corner elements with increased fidelity can be formed. Consequently, retroreflective sheeting including a substantially amorphous polymeric layer has increased brightness compared to similarly made and composed sheeting lacking the substantially amorphous polymeric layer.
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