发明名称 |
RETROREFLEKTIERENDE SCHICHT MIT EINGEBETTETEN LINSEN UND MIT EINER WASSERDICHTEN TRANSPARENTEN VERKLEIDUNGSSCHICHT. |
摘要 |
A transparent cover film better protects enclosed-lens retroreflective sheeting and can be applied more economically when it is extruded and is a thermoplastic polymer which has good elongation and minimal elastic memory. Preferred polymers are (a) aliphatic urethanes and (b) copolymers of ethylene or propylene. |
申请公布号 |
AT84623(T) |
申请公布日期 |
1993.01.15 |
申请号 |
AT19860308855T |
申请日期 |
1986.11.13 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
BAILEY,TERRY R.OEC/O MINNESOTA MIN. & M;HAUNSCHILD, DALE H,OEC/O MINNESOTA M. & |
分类号 |
B32B27/00;B32B5/16;B32B7/02;B32B27/08;B32B33/00;E01F9/00;E01F9/04;G02B5/128;(IPC1-7):G02B5/128 |
主分类号 |
B32B27/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|