Triarylmethanes and processes for making the same

Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product

Reexamination Certificate

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C430S132000, C564S315000

Reexamination Certificate

active

08080351

ABSTRACT:
Triarylmethane compounds used as antioxidants in overcoat layers to alleviate printing defects and an improved chemical process for the synthesis of these triarylmethane compounds using an acetal derivative of an aldehyde which significantly reduces reaction time and results with the formation of substantially no byproducts.

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International Search Report, EP Patent Application No. 09160192.2 dated Aug. 24, 2009, 7 pages.

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