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Home › Fibers from copolyimides and polymidies derived from tetramethylcyclobutane-1,2,3,4-tetracarboxylic dianhydride and diamines

Fibers from copolyimides and polymidies derived from tetramethylcyclobutane-1,2,3,4-tetracarboxylic dianhydride and diamines

US Patent 4431791 · Granted Feb 14, 1984

Estimated economic value: $4,902,000 ⓘ

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