TONER FÜR DIE ELEKTROPHOTOGRAPHIE

TONER FÜR DIE ELEKTROPHOTOGRAPHIE

The present invention aims to provide a safer toner having lower content of residual bisphenol A, which has been suspected of an endocrine disrupting chemical. A toner for electrophotography which contains a coloring agent, and a binder resin, in which the binder resin is a polyol resin which is pre...

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Hauptverfasser: UMEMURA, KAZUHIKO, TAMURA, TOMOMI, IWAMOTO, YASUAKI, MASUDA, MINORU, SUGIURA, HIDEKI, ASAHINA, YASUO, MOCHIZUKI, SATOSHI
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Sprache:ger
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CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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creator UMEMURA, KAZUHIKO
TAMURA, TOMOMI
IWAMOTO, YASUAKI
MASUDA, MINORU
SUGIURA, HIDEKI
ASAHINA, YASUO
MOCHIZUKI, SATOSHI
description The present invention aims to provide a safer toner having lower content of residual bisphenol A, which has been suspected of an endocrine disrupting chemical. A toner for electrophotography which contains a coloring agent, and a binder resin, in which the binder resin is a polyol resin which is prepared by reacting a) an epoxy resin, b) a compound having one or more active hydrogen atoms which react with an epoxy group in molecules of the compound having one or more active hydrogen atoms, and c) a compound having two or more active hydrogen atoms which react with an epoxy group in molecules of the compound having two or more active hydrogen atoms, a weight concentration of unreacted bisphenol A in the toner is 1000 mu g/g or less, and the toner has an epoxy equivalent of 20000 or more.
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subjects CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
title TONER FÜR DIE ELEKTROPHOTOGRAPHIE
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