发明名称 |
PIGMENTED POLYIMIDE FILMS AND METHODS RELATING THERETO |
摘要 |
The present disclosure is directed to a base film having a thickness from 8 to 152 microns, a 60 degree gloss value from 2 to 35, an optical density greater than or equal to 2 and a dielectric strength greater than 1400 V/mil. The base film comprises a chemically converted (partially or wholly aromatic) polyimide in an amount from 63 to 96 weight percent of the base film. The base film further comprises a pigment and a matting agent. The matting agent is present in an amount from 1.6 to 10 weight percent of the base film, has a median particle size from 1.3 to 10 microns, and has a density from 2 to 4.5 g/cc. The pigment is present in an amount from 2 to 35 weight percent of the base film. The present disclosure is also directed to coverlay films comprising the base film in combination with an adhesive layer.
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申请公布号 |
US2011039085(A1) |
申请公布日期 |
2011.02.17 |
申请号 |
US20100850739 |
申请日期 |
2010.08.05 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
CARNEY THOMAS EDWARD;SIMONE CHRISTOPHER DENNIS |
分类号 |
B32B5/00;B32B27/00;B32B27/38;C08K3/22;C08K3/30;C08L79/08 |
主分类号 |
B32B5/00 |
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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