Polyimides from oxydiphthalic anhydride and 2,4-diaminotoluene

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof

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528125, 528128, 528172, 528173, 528179, 528183, 528188, 528220, 528229, 524600, 524606, 428364, 428395, 4284735, 525436, C08G 6926, C08G 7310

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active

054420318

ABSTRACT:
Soluble polyimides are formed from oxydiphthalic anhydride and 2,4-diaminotoluene. Optionally, up to 30 mole % of an alternate diamine and up to 50 mole % of an alternate dianhydride can be used with the oxydiphthalic anhydride and 2,4-diaminotoluene.

REFERENCES:
patent: 3870677 (1975-03-01), Farrissey, Jr. et al.
patent: 4535115 (1985-08-01), Bakshi et al.
patent: 4778872 (1988-10-01), Sasaki et al.
patent: 5089549 (1992-02-01), Kato
patent: 5147966 (1992-09-01), St. Clair et al.

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