Mitsubishi Rayon Company, Limited

Yoko Harada

Motoshi Inagaki

Koji Shimizu

Noriyuki Tajiri

Junya Nakamura

Suspension polymerizing epoxy group-containing acrylic resin

An epoxy group-containing acrylic resin for a powder coating composition is a copolymer, having a weight-average molecular weight of 3000 to 20000, of a vinyl monomer mixture comprising 10 to 60% by weight of alkyl ester(s) of (meth)acrylic acid, 10 to 60% by weight of epoxy group-containing vinyl monomer(s) and other vinyl monomer(s), said epoxy group-containing acrylic resin having a mean particle diameter in the range of 80 to 800 &mgr;m, including 95% by weight or more of particles satisfying the relation of 1&lE;R/r&lE;1.2 wherein R is a long diameter and r is a short diameter of each particle, and including 1000 ppm or less of volatile components, the amount of the particles having long diameters R of less than 62 &mgr;m being 5% by weight or less, that of the particles having short diameters r of more than 1000 &mgr;m being 5% by weight or less.

Powder coating composition comprising epoxy group-containing acrylic resin

Toner binder resins with low odor and excellent charging stability as toners, containing styrene-acrylic copolymers or mixtures thereof, wherein the total content of volatile components is no greater than about 1,500 ppm, the content of volatile components with benzene rings is no greater than about 1,400 ppm, and the content of volatile components with benzene rings and boiling point of below about 200&deg; C. is no greater than about 500 ppm.

Toner binder resin and process for the production thereof

Binder resin for toners and toners

Growing community of inventors

Aichi, Japan

Yoko Harada