INSULATED WIRE AND INSULATING VARNISH USED THEREFOR
    42.
    发明申请
    INSULATED WIRE AND INSULATING VARNISH USED THEREFOR 失效
    使用绝缘线和绝缘电阻

    公开(公告)号:US20090202831A1

    公开(公告)日:2009-08-13

    申请号:US12211553

    申请日:2008-09-16

    摘要: An insulated wire including a conductor, and an insulating film formed by coating and baking an insulating varnish on the conductor directly or via another insulation layer. The insulating varnish includes a phenolic hydroxyl group-containing polyimide resin represented by a chemical formula (1): where X is a tetravalent aromatic group composing an aromatic tetracarboxylic dianhydride residue, Y1 is a divalent aromatic group including one or more phenolic hydroxyl groups and Y2 is a divalent aromatic group not including a phenolic hydroxyl group A ratio of the number Z1 of phenolic hydroxyl groups included in Y1 of the chemical formula (1) to the number Z2 of an imide group included in the chemical formula (1) is 0.15≦Z1/Z2≦0.85.

    摘要翻译: 包括导体的绝缘线,以及通过直接或经由另一绝缘层在绝缘漆上涂覆和烘烤绝缘漆而形成的绝缘膜。 绝缘漆包括由化学式(1)表示的含酚羟基的聚酰亚胺树脂:其中X是构成芳族四羧酸二酐残基的四价芳族基团,Y1是包括一个或多个酚羟基的二价芳族基团和Y2 是不包含酚羟基的二价芳族基团化学式(1)的Y1中包含的酚羟基数Z1与化学式(1)中包含的酰亚胺基数Z2的比例为0.15 < = Z1 / Z2 <= 0.85。