IONIC POLYESTERS FOR ELECTRICALLY PHOTOSENSITIVE COMPOSITE PARTICLES, MATERIALS, ELEMENTS, AND PHOTOELECTROPHORETIC IMAGING METHODS

摘要

Novel polyesters comprising repeating units from: (a) a diacid derived component comprising a group selected from the class consisting of an alkali metal or ammonium -sulfoarylene, -sulfoaryl-oxyarylene, -sulfocycloalkylene, -iminodisulfonyl-arylene, -iminobis(sulfonylarylene) or -sulfoaral-kylarylene; and (b) a diol or diacid derived component comprising a group selected from the class consisting of bis(N-alkyl-N-alkyleneaminoaryl)arylalkane; bis(N-alkyl-N-alkyleneaminoaryl)diarylalkane; bis(Nalkyl-N-alkyleneaminoaryl)isoalkane; bis(N-alkyl-N-alkyleneaminoaryl)cycloalkane; dialkyleneaminotetraarylalkane; bis(alkylenearyl)arylamine and alkylenetriarylamine; are useful in electrically photosensitive composite particles, materials, layers and photoelectrophoretic imaging methods.