Purification of 4,4'-benzophenonedicarboxylic acid

Details Purification of 4,4'-benzophenonedicarboxylic acid Purification of 4,4'-benzophenonedicarboxylic acid

1977-10-31

1979-11-06

Myers, Jane S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

C07C 6520

Patent

active

041737083

ABSTRACT:
A process is described for purifying 4,4'-benzophenonedicarboxylic acid, useful in preparing thermoplastic polyesters yielding molded articles having high impact strength, wherein the acid contains aromatic monocarboxylic acid genetic impurity, which comprises the steps of

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patent: 3215734 (1965-11-01), Katzschmann
patent: 3370088 (1968-02-01), Lese
patent: 3448146 (1960-06-01), Lese et al.
patent: 3510513 (1970-05-01), McCracken
patent: 3577457 (1971-05-01), Schulz
patent: 3849489 (1974-11-01), Rudzki
Wiberg, Laboratory Technique in Org. Chemistry, p. 112, (1960).

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