发明名称 |
LAMINATE FILM WITH ORGANIC PARTICULATE FOR MAGNETIC RECORDING MEDIUM |
摘要 |
A laminate film has a coated film layer containing a binder resin and an organic filler. The laminate film satisfies the following expressions (1) and (2) when it is heated at 200° C. for 120 minutes:<paragraph lvl="0"><in-line-formula>0<=(Ra1-Ra2)/Ra1<0.4 (1)</in-line-formula><paragraph lvl="0"><in-line-formula>0.1<Ra2<7 (2)</in-line-formula>wherein Ra1 is an average roughness of root mean square (nm) of an exposed surface of the coated film layer before the heat treatment, and Ra2 is an average roughness of root mean square (nm) of the exposed surface of the coated film layer after the heat treatment. The film has protrusions with two or more interference fringes on the surface at a density of 100 per 100 cm2 at the most. The present laminate film is useful as a base film for a magnetic recording medium.
|
申请公布号 |
US2002068196(A1) |
申请公布日期 |
2002.06.06 |
申请号 |
US19970978613 |
申请日期 |
1997.11.26 |
申请人 |
HANDA MAKOTO;TOJO MITSUO;OSAWA TOSHIFUMI |
发明人 |
HANDA MAKOTO;TOJO MITSUO;OSAWA TOSHIFUMI |
分类号 |
B32B27/20;B32B27/36;B32B33/00;C08J7/04;G11B5/65;G11B5/73;G11B5/733;G11B5/735;G11B5/738;(IPC1-7):G11B5/78 |
主分类号 |
B32B27/20 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|