Orient Chemical Industries, Ltd.

Other

Akihiro Tada

Shun-ichiro Yamanaka

Masashi Yasumatsu

Motoomi Arakawa

Takashi Kiriu

Tohru Tsuruhara

Toshiyuki Okuda

Toshihiro Urakawa

Yoshitaka Taguchi

A charge control agent comprises a monoazo metals-compound including a monoazo compound represented by the following formula [I]: and metals of a metallic element or a metalloid coordinating to the monoazo compound. A toner for developing an electrostatic image comprises: the charge control agent including the monoazo compound and metals of the metallic element or the metalloid coordinating to the monoazo compound, a resin for the toner and a colorant.

Charge control agent and toner for electrostatic image development containing the same

Monoazo metal complex compound containing composition, the incidence of skin sensitization in a skin sensitization potential test based on the maximization method of said composition being not more than 20% and method for producing said composition which comprises a step for removing impurity substances using an alcoholic organic solvent; charge control agent comprising said composition and toner containing said charge control agent; coloring agent containing said composition and colored thermoplastic resin composition containing said coloring agent.

Monoazo metal complex compound containing composition and production method thereof

Process for preparing a monoazo metal complex salt compound for charge control agent and toner for developing electrostatic images

Charge control agent comprising a base particle containing at least a charge control substance, and a granulating agent, said base particle being granulated using said granulating agent, and said granulating agent being at least one selected from the group consisting of anionic surfactants, nonionic surfactants, cationic surfactants, natural water-soluble high molecular compounds and synthetic water-soluble high molecular compounds; manufacturing process thereof; and toner for developing electrostatic images containing the charge control agent for the purpose of charge control, and also containing a coloring agent and a resin.

Charge control agent manufacturing process thereof and toner for developing electrostatic images

A compound for developing electrostatic latent images for use in a toner wherein the compound comprises an aluminum compound of aromatic o-aminocarboxylic acid, the aromatic o-aminocarboxylic acid being represented by the formula ##STR1## wherein Q is benzene nucleus which is optionally substituted with at least one nuclear substituent or naphthalene nucleus which is optionally substituted with at least one nuclear substituent, R is hydrogen, alkyl (C.sub.1 -C.sub.18), aryl(C.sub.1 -C.sub.18), aralkyl(C.sub.1 -C.sub.18), or --COR', wherein R' is alkyl(C.sub.1 -C.sub.8), aryl(C.sub.1 -C.sub.8), alkoxy (C.sub.1 -C.sub.8) or amino.

Toner for developing electrostatic latent images

A toner for developing electrostatic latent images which is characterized in that the toner comprises an aluminum compound of aromatic o-aminocarboxylic acid, the aromatic o-aminocarboxylic acid being represented by the formula ##STR1## wherein Q is benzene nucleus which is optionally substituted with at least one nuclear substituent or naphthalene nucleus which is optionally substituted with at least one nuclear substituent, R is hydrogen, alkyl (C.sub.1 -C.sub.18), aryl or nuclear substituted aryl (C.sub.6 -C.sub.18), aralkyl or nuclear substituted aralkyl (C.sub.7 -C.sub.18), or --COR', wherein R' is alkyl(C.sub.1 -C.sub.8), aryl(C.sub.6 -C.sub.8), alkoxy (C.sub.1 -C.sub.8) or amino.

Growing community of inventors

Osaka, Japan

Akihiro Tada