| 发明名称 |
POLYESTERFOLIEN FUER MAGNETBAENDER |
| 摘要 |
<p>There is disclosed a polyester film suitable for use in magnetic tapes having the characteristics represented by the following equations: N1h </= 2.3 (i) <IMAGE> (ii) n </= 1.601 (iii) wherein N1 is the number of peaks of surface projections per millimeter; &upbar& h is the average height in mu m of the surface projections; theta is the average steepness in degree of the surface projections; &upbar& H2 is the mean square height in mu m2 of the surface projections; and &upbar& n is the average refractive index.</p> |
| 申请公布号 |
DE3034241(A1) |
申请公布日期 |
1981.03.19 |
| 申请号 |
DE19803034241 |
申请日期 |
1980.09.11 |
| 申请人 |
DIAFOIL CO. LTD. |
发明人 |
SAKAMOTO,SEIJI;MEGURO,YOSHIO |
| 分类号 |
B29C49/00;B29C55/00;B29C55/12;C08L67/02;G11B5/73;(IPC1-7):11B5/78 |
主分类号 |
B29C49/00 |
| 代理机构 |
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