公开(公告)号：US20130153262A1

公开(公告)日：2013-06-20

申请号：US13818924

申请日：2011-08-23

申请人： Hideaki Saito ,  Yuudai Furuya ,  Kengo Yoshida ,  Yuji Hatanaka

发明人： Hideaki Saito ,  Yuudai Furuya ,  Kengo Yoshida ,  Yuji Hatanaka

IPC分类号： H01B3/30 ,  H01B3/36

CPC分类号： H01B3/306 ,  C08G18/4661 ,  C08G73/16 ,  C08L75/06 ,  C09D179/08 ,  H01B3/308 ,  H01B3/36 ,  C08L61/04

摘要： Provided are a varnish mainly containing a polyester imide and capable of forming a low-permittivity insulating layer, as well as an insulated electronic wire achieving low permittivity by using the varnish. The varnish mainly contains a polyester imide resin obtained by reacting a carboxylic acid including a dicarboxylic acid, or an anhydride or alkyl ester thereof (carboxylic acid or derivative thereof), an alcohol, and a diamine compound with one another. In the varnish, adjustment is made such that a molar ratio (OH/COOH) of hydroxyl groups of the alcohol to carboxyl groups of the carboxylic acid or derivative thereof becomes 1.9 or less or such that a content of highly polarized imide groups per unit amount of polyester imide chain is reduced by increasing molecular weights of the raw material monomers.

摘要翻译： 提供主要含有聚酯酰亚胺并能够形成低介电常数绝缘层的清漆，以及通过使用清漆实现低介电常数的绝缘电子线。 清漆主要含有通过使包含二羧酸或其酸酐或其烷基酯（其羧酸或其衍生物），醇和二胺化合物的羧酸彼此反应而获得的聚酯酰亚胺树脂。 在清漆中，进行调整，使得羧酸或其衍生物的醇与羧基的羟基的摩尔比（OH / COOH）为1.9以下，或每单位量的高极化酰亚胺基的含量 的聚酯酰亚胺链通过增加原料单体的分子量来降低。