Toyo Ink Manufacturing Company

Toyo Ink Mfg. Co., Ltd.

Toyo Ink Sc Holdings Co., Ltd.

Yasushi Ariyoshi

Takeshi Sato

Daisuke Fujiwara

Takehiro Suzuki

Atsushi Yoda

Kazunori Shigemori

Atsushi Nakazato

Toru Omura

Ken Yamazaki

Tomoko Tachibana

Tsutomu Hiroshima

Taro Murohoshi

Yoshiko Takabatake

A dispersing agent characterized in that said dispersing agent is prepared by reacting primary and/or secondary amino groups of an amine compound comprising a polyamine (C) with isocyanate groups of a urethane prepolymer (E) having two isocyanate groups in one terminal region, wherein said urethane prepolymer (E) has been prepared by reacting hydroxyl groups in a vinyl polymer (A) having two hydroxyl groups in one terminal region with isocyanate groups in diisocyanates (B), and in that an amine number of said dispersing agent is 1 to 100 mgKOH/g is disclosed. The dispersing agent of the present invention has excellent dispersibility, flowability, and storage stability when used in small quantities. A pigment-dispersed product can be prepared therefrom, independently of the kinds of binder resin or solvent used. Further, the present invention is suitable for offset ink, gravure ink, resist ink for a color filter, inkjet ink, coating composition, and colored resin composition.

Dispersing agent, and pigment composition, pigment-dispersed product and inkjet ink prepared therefrom

Disclosed is a cold curable resin composition comprising at least a block copolymer in which a polymer portion having an epoxy group, a hydroxyl group and a hydrolytic silyl group and a polyorganosiloxane portion exist in the same molecular chain. A base material coated with the curable resin composition is also disclosed herein. The resin composition of the present invention has high performance in application to, for instance, an inorganic base material such as a plastic plate, e.g., an acrylic plate and glass, and has excellent cold curing properties, possesses high de-staining ability and excellent adhesive properties, and further can form a smooth and transparent coating film.

Cold curable resin composition and base material coated with the same

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Tokyo, Japan

Yasushi Ariyoshi