发明名称 |
NONWOVEN FABRIC FOR ELECTRIC INSULATION, METHOD FOR PRODUCING THE SAME, PREPREG, LAMINATED PLATE AND PRINTED CIRCUIT BOARD |
摘要 |
PROBLEM TO BE SOLVED: To decrease the moisture absorption and the thermal dimensional change of a nonwoven fabric for electric insulation containing a wholly aromatic polyester fiber, improve the moisture resistance and heat resistance and decrease the thermal expansion coefficient in thickness direction of an insulation layer produced by applying a thermosetting resin to the nonwoven fabric for electric insulation. SOLUTION: The nonwoven fabric for electric insulation is produced by using a wholly aromatic polyester fiber treated its surface with a resol phenolic resin to form a completely cured film of the phenolic resin. The resol phenolic resin is preferably a water-soluble low-molecular resol phenolic resin having large amount of residual methylol groups. The laminated plate or the insulation layer of a printed circuit board is produced by impregnating an epoxy resin in the nonwoven fabric for electric insulation and hot-pressing the impregnated product. COPYRIGHT: (C)2006,JPO&NCIPI |
申请公布号 |
JP2006037280(A) |
申请公布日期 |
2006.02.09 |
申请号 |
JP20040219515 |
申请日期 |
2004.07.28 |
申请人 |
SHIN KOBE ELECTRIC MACH CO LTD |
发明人 |
KAWAHIRA TETSUYA;OCHITA MANABU |
分类号 |
C08J5/24;C08L101/00;D04H1/435;D06M15/41;D06M101/32 |
主分类号 |
C08J5/24 |
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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