Mitsubishi Chemical Corporation

Mitsubishi Kasei Corporation

Katsuo Koizumi

Noriaki Takahashi

Shigenori Otsuka

Osamu Ando

Hiromi Horiuchi

Yuqing Xu

Tomoko Ishikawa

Toshiyuki Sueyoshi

Hirofumi Oda

Syuuichi Maeda

A toner for the development of an electrostatic image is provided wherein at least one layer of a particulate resin is coated onto a substantial portion of the surface of an agglomerate of particles made from at least primary polymer particles and primary colorant particles, wherein at least one of the primary polymer particles and the particulate resin contains a wax, and the particulate resin of the outermost layer is substantially free of wax and a process for producing the toner.

Toner for the development of electrostatic image and the production process thereof

A carrier for developing electrostatic latent images is disclosed, which comprises a core material at least a part of which is coated with a resin containing a copolymer comprised of vinylidene chloride and at least one monomer having an unsaturated double bond and being copolymerizable with vinylidene chloride, wherein the copolymer is comprised of (a) from 70 to 30 mol % of vinylidene chloride, (b) from 20 to 60 mol % of acrylonitrile and/or an acrylonitrile derivative, and (c) from 0 to 40 mol % of a monomer having an unsaturated double bond and being copolymerizable with components (a) and (b). An electrophotographic developer containing the carrier and an electrophotographic developing process using the developer are also disclosed.

Carrier for developing electrostatic latent images, developer, and

Growing community of inventors

Kanagawa, Japan

Katsuo Koizumi