Browse Prior Art Database

ARYL AZO PYRAZALONES AS COLORANTS FOR ELECTROSCOPIC TONER

IP.com Disclosure Number: IPCOM000023534D
Original Publication Date: 1978-Feb-28
Included in the Prior Art Database: 2004-Mar-31

Publishing Venue

Xerox Disclosure Journal

Abstract

It is disclosed that aryl azo pyr-azolones may be used as colorants in electroscopic toners. The following structure and its derivatives are useful: HO R7 R8 R R CN-/\\ R H I R -<- -')-N = N - C N / 4 - R-1 R10 R5 R6