发明名称 |
Transparent multi-layer cover film for retroreflective sheeting. |
摘要 |
<p>Retroreflective sheeting has a flat, transparent cover film of excellent clarity and weatherability that resists dirt accumulation while also having good flexibility, conformability and stretchability, this desirable combination of properties being achieved when the cover film includes a urethane inner layer and an acrylic outer layer. The urethane inner layer comprises a thermoplastic aliphatic urethane polymer.</p> |
申请公布号 |
EP0223564(A2) |
申请公布日期 |
1987.05.27 |
申请号 |
EP19860308854 |
申请日期 |
1986.11.13 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
BAILEY, TERRY R. C/O MINNESOTA MINING AND;KULT, ROGER R. C/O MINNESOTA MINING AND;BELISLE, LOUIS C. C/O MINNESOTA MINING AND |
分类号 |
B32B27/30;B32B7/02;B32B27/08;G02B5/128;(IPC1-7):G02B5/128 |
主分类号 |
B32B27/30 |
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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