发明名称 |
MATTE FINISH 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 71 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 9 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 |
US2011177321(A1) |
申请公布日期 |
2011.07.21 |
申请号 |
US20100842174 |
申请日期 |
2010.07.23 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
CARNEY THOMAS EDWARD;BARTOLIN JEFFREY MICHAEL;DUNBAR MEREDITH L. |
分类号 |
B32B27/34;B32B27/18;B32B27/38;C08K3/22;C08K3/30;C08K3/36;C08L79/08;C09J7/02 |
主分类号 |
B32B27/34 |
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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