Aryl sulphide, aryl sulphoxide and aryl sulphone compounds

Details Aryl sulphide, aryl sulphoxide and aryl sulphone compounds Aryl sulphide, aryl sulphoxide and aryl sulphone compounds

1991-10-02

1993-12-28

Dees, Jose G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

546267, 546335, 546342, 546 69, 560 9, 560 11, 560 12, 560 13, 560 17, 560 18, 562432, C07C31714, C07C32362, C07D21355

Patent

active

052741842

ABSTRACT:
The present invention relates to compounds of the general formula I ##STR1## wherein A.sup..sym. and B.sup..sym. independently of one another denote a proton, with the limitation that they do not both simultaneously denote protons, the equivalent part of the barium ion, an ion of the general formula II ##STR2## or an ion of the general formula III ##STR3## and wherein R.sup.1 to R.sup.8, R.sup.11 to R.sup.16, X and m and n are as defined in the description, processes for their preparation and their use as charge control agents in toners and developers and as charge improving agents in powders and varnishes.

REFERENCES:
patent: 1769423 (1930-07-01), Eder
patent: 2064395 (1936-12-01), Tschunkur et al.
patent: 2552269 (1951-05-01), Emerson et al.
patent: 2614120 (1952-10-01), Caldwell
patent: 4480021 (1984-10-01), Lu et al.
patent: 4493802 (1985-01-01), Jaedicke et al.
patent: 4686303 (1987-08-01), Bauer et al.
patent: 4698364 (1987-10-01), Janemura et al.
patent: 4902826 (1990-02-01), Bauer et al.
Beilsteins Handbook, Der Organischen Chemie, Syst. No. 1068-1069, pp. 148-149, Berlin, (1927).

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