Water-soluble insulating varnish
    2.
    发明授权
    Water-soluble insulating varnish 失效
    水溶性绝缘漆

    公开(公告)号:US4576990A

    公开(公告)日:1986-03-18

    申请号:US671841

    申请日:1984-11-15

    IPC分类号: H01B3/42 C08L77/00 C08L79/00

    CPC分类号: H01B3/421

    摘要: An insulating varnish comprising water-soluble polyesters and which can be used as an enamel or protective coating for electric wires is disclosed. The insulating varnish is prepared by reacting an aromatic dicarboxylic acid component and a polyhydric alcohol component to produce a high molecular weight polyester resin, addition reacting a polybasic acid with the resulting polyester resin to obtain a carboxyl group-containing polyester resin and dissolving the resulting polyester resin in water using a basic compound.

    摘要翻译: 公开了一种包含水溶性聚酯并可用作电线的搪瓷或保护涂层的绝缘漆。 绝缘漆是通过使芳香族二羧酸成分和多元醇成分反应来制造高分子量聚酯树脂,使多元酸与得到的聚酯树脂反应,得到含羧基的聚酯树脂,将得到的聚酯 树脂在水中使用碱性化合物。

    Aqueous insulating varnishes
    3.
    发明授权
    Aqueous insulating varnishes 失效
    水性绝缘漆

    公开(公告)号:US4007146A

    公开(公告)日:1977-02-08

    申请号:US550504

    申请日:1975-02-18

    摘要: An aqueous insulating varnish which comprises an aqueous medium containing dissolved therein a polyester resin having an acid value of about 20 to 200 with a volatile basic compound, the resin being obtained by reactingA. an organic polycarboxylic acid component comprisingA. at least 30 mol% of at least one of an aromatic tricarboxylic acid and the anhydride thereof, in which up to about 30 mol% of the tricarboxylic acid and anhydride thereof can be replaced by at least one of an aromatic tetracarboxylic acid and the anhydride thereof, andB. about 0 to 70 mol% of at least one of a dicarboxylic acid and the anhydride thereof, andB. an organic polyhydric alcohol component containing at least 20 mol% of a polyethylene terephthalate oligomer represented by the formula ##STR1## wherein n is an integer of 1 to 5, in a OH/COOH equivalent ratio of about 1.0 to 2.0.

    摘要翻译: 一种含水绝缘漆,其包含含有溶解于其中具有约20至200的酸值的聚酯树脂的水性介质和挥发性碱性化合物,所述树脂通过A.将有机多元羧酸组分与包含A的反应得到。 至少一种芳族三羧酸及其无机物的百分比,其中三羧酸和其无机酸的百分之三十以上可以由至少一种芳族四羧酸和其无机物和B替代。 约0至70摩尔%的二氰​​基酸及其无水物,和B.含有至少20摩尔%的由式< IMAGE>表示的聚对苯二甲酸乙二醇酯低聚物的有机多元醇组分,其中n是整数 为1至5,OH / COOH当量比为约1.0至2.0。