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Home › Polyimide copolymers containing 3,3',4,4'-tetracarboxybiphenyl dianhydride (BPDA) moieties

Polyimide copolymers containing 3,3',4,4'-tetracarboxybiphenyl dianhydride (BPDA) moieties

US Patent 5304626 · Granted Apr 19, 1994

Estimated economic value: $28,756,000 ⓘ

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