发明名称 |
Nonwoven reinforcement for printed wiring base board and process for producing the same |
摘要 |
<p>There are disclosed a nonwoven reinforcement for a printed wiring base board which nonwoven reinforcement comprises a wet-system nonwoven fabric constituted of thermotropic cystalline polyester fiber having a melting point of 290 DEG C or higher( component A ) and a thermotropic cystalline polyester binder which has a melting point of 290 DEG C or higher and is in the form of a film having holes including at least 5 holes /mm<2> each with an area of opening of 400 to 10000 mu m<2> ( component B ), the component A being fixed by the component B; a process for producing the above nonwoven reinforcement; a printed wiring base board produced from the above nonwoven reinforcement; and a printed wiring board produced from the above printed wiring base board. The nonwoven reinforcement and the printed wiring ( base) board are excellent in various performances such as uniformity, dimensional stability, heat resistance and electrical characteristics such as dielectric constasnt and dielectric loss tangent.</p> |
申请公布号 |
EP0908559(A2) |
申请公布日期 |
1999.04.14 |
申请号 |
EP19980118922 |
申请日期 |
1998.10.07 |
申请人 |
MITSUBISHI GAS CHEMICAL COMPANY, INC.;KURARAY CO., LTD. |
发明人 |
GAKU, MORIO;NOZAKI, MITSURU;SAIMEN, KENJI;ESAKI, TAMEMARU |
分类号 |
D21H13/24;D21H17/53;D21H25/06;H05K1/03;(IPC1-7):D21H13/24;H05K1/00 |
主分类号 |
D21H13/24 |
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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