| 发明名称 |
TOOLS FOR MAKING RETROREFLECTIVE ARTICLES |
| 摘要 |
A tool for making retroreflective articles comprises (a) a substrate comprising a patterned surface comprising an array of microstructured retroreflective elements and (b) a welding seam through at least a portion of the array. An optically degraded area adjacent the welding seam on the patterned surface has a width of about 400 μm or less. |
| 申请公布号 |
US2015048067(A1) |
申请公布日期 |
2015.02.19 |
| 申请号 |
US201314390161 |
申请日期 |
2013.03.13 |
| 申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
Markowicz Przemyslaw P. |
| 分类号 |
B29C59/00;B29C59/04;B23K26/26;G02B5/08 |
主分类号 |
B29C59/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A tool for making retroreflective articles comprising:
(a) a substrate comprising a patterned surface comprising an array of microstructured retroreflective elements; and (b) a welding seam through at least a portion of the array; wherein an optically degraded area adjacent the welding seam on the patterned surface has a width of about 400 μm or less. |
| 地址 |
St. Paul MN US |
