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Home › Water soluble polyimide prepared from 1,2,3,4 butane tetracarboxylic acid and method of preparation

Water soluble polyimide prepared from 1,2,3,4 butane tetracarboxylic acid and method of preparation

US Patent 4389510 · Granted Jun 21, 1983

Estimated economic value: $5,645,000 ⓘ

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