发明名称 |
Process for producing polyamide-imide resin |
摘要 |
A polyamide-imide resin which can give a varnish having a high resin content, excellent in storage stability and heat resistant final products such as insulated wire can be produced by reacting an aromatic diisocyanate with a tricarboxylic acid anhydride in the presence of a basic solvent while adjusting the resin content at 40% by weight or more, and adding a compound having one active hydrogen atom before, during or after the above-mentioned reaction so as to adjust the reduced viscosity of the resin to 0.27 or lower.
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申请公布号 |
US4497944(A) |
申请公布日期 |
1985.02.05 |
申请号 |
US19820439200 |
申请日期 |
1982.11.04 |
申请人 |
HITACHI CHEMICAL COMPANY, LTD. |
发明人 |
NISHIZAWA, HIROSHI;MUKOYAMA, YOSHIYUKI |
分类号 |
C08G18/00;C08G18/34;C08G73/14;C09D175/00;C09D179/08;H01B3/30;(IPC1-7):C08G73/14 |
主分类号 |
C08G18/00 |
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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