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Home › Process of preparing polyamide-imide and polyimide polymers from acid anhydrides and dianhydrides of disubstituted maleic anhydrides

Process of preparing polyamide-imide and polyimide polymers from acid anhydrides and dianhydrides of disubstituted maleic anhydrides

US Patent 5098991 · Granted Mar 24, 1992

Estimated economic value: $22,337,000 ⓘ

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