发明名称 |
ELASTOMERIC RETROREFLECTIVE SHEETING |
摘要 |
A new embedded-lens retroreflective sheeting which exhibits superior properties, including superior angularity, and which is made by a new method of manufacture involving lamination techniques. Microspheres are embedded into a first polymeric layer to less than one-half the average diameter of the microspheres, and a pre-formed spacing film is laminated to the microsphere covered surface of the first layer so as to obtain conformation of the spacing film in a substantially constant thickness over a useful portion of the back surface of the microspheres. |
申请公布号 |
AU1137488(A) |
申请公布日期 |
1988.05.12 |
申请号 |
AU19880011374 |
申请日期 |
1988.02.05 |
申请人 |
MINNESOTA MINING AND MANUFACTURING CO., |
发明人 |
TERRY RALPH BAILEY |
分类号 |
G02B5/12;B32B7/02;G02B5/128 |
主分类号 |
G02B5/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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