TONERS AND DEVELOPERS CONTAINING ESTER-CONTAINING QUATERNARY PYRIDINIUM SALTS AS CHARGE CONTROL AGENTS - Patent 0548348

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EP 0 548 348 A1

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(43)	Date of publication:
	30.06.1993 Bulletin 1993/26

(21)	Application number: 92915992.0

(22)	Date of filing: 16.07.1992

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International Patent Classification (IPC):

G03G 9/ 097^{( . )}

(86)	International application number:
	PCT/US1992/005961

(87)	International publication number:
	WO 1993/002397 (04.02.1993 Gazette 1993/04)

(84)	Designated Contracting States:
	BE DE FR GB NL

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Priority:

18.07.1991 US 19910734354

(71)	Applicant: EASTMAN KODAK COMPANY
	Rochester, New York 14650-2201 (US)

(72)	Inventors:
	WILSON, John, Charles Rochester, NY 14617 (US) BERMEL, Alexandra, DiLauro Spencerport, NY 14559 (US)

(74)	Representative: Brandes, Jürgen, Dr., et al
	Wuesthoff & Wuesthoff Patent- und Rechtsanwälte Schweigerstrasse 2 D-81541 München D-81541 München (DE)

(54)	TONERS AND DEVELOPERS CONTAINING ESTER-CONTAINING QUATERNARY PYRIDINIUM SALTS AS CHARGE CONTROL AGENTS