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US5493003A Solutions of polyimide-forming substances and their use as coating materials 失效
聚酰亚胺形成物质的解决方案及其作为涂料的用途

Solutions of polyimide-forming substances and their use as coating
materials
摘要:
Solutions of polyimide-forming substances containA) polyamines andB) amides and/or esters of tetracarboxylic acids, the amido or ester groups carrying substituents selected from the group consisting of carboxyl, sulfo and silicon-containing groups,and are used as polyimide coatings.
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