发明名称 |
BIAXIALLY ORIENTED SHEETING FOR ELECTRICAL INSULATION WITH IMPROVED SHRINKAGE AT ELEVATED TEMPERATURES |
摘要 |
<p>A biaxially oriented polypropylene film is described. The n-heptane-insoluble content of the film has a chain isotacticity index, measured by 13-C-NMR spectroscopy, of at least 95%. In particular, the film should have the lowest possible shrinkage (transverse shrinkage and longitudinal shrinkage) at elevated temperatures. In addition, a process for the production of the polypropylene film and its use is described.</p> |
申请公布号 |
PT1141982(E) |
申请公布日期 |
2008.04.29 |
申请号 |
PT19990971144T |
申请日期 |
1999.10.26 |
申请人 |
TREOFAN GERMANY GMBH & CO.KG |
发明人 |
KARL-HEINZ KOCHEM;KERSTIN MUELLER-NAGEL |
分类号 |
H01G4/18;C08J5/18;H01B3/44;H01B17/56 |
主分类号 |
H01G4/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|