Ajinomoto Co., Ltd.

Nippon Zeon Company, Ltd.

Yuji Koshima

Teiji Kohara

Hajime Tanisho

Takayuki Tanaka

Yuichiro Konishi

Junji Ohashi

Hidenori Yukishige

Eriko Satou

Naoya Sato

An object of the present invention is to provide curing agent composite particles for epoxy resin, which are less likely to aggregate, and are excellent in storage stability and solvent resistance. Coated particles of the present invention comprise (A) curing agent particles for epoxy resin, and (B) an alkoxy oligomer, wherein the surfaces of the curing agents for epoxy resin particle are coated with the alkoxy oligomer.

Coated particles

Polyallylamine derivatives including 10 to 450 structural units represented by Formula (1): are useful for preparing dispersants, treated particles, particle-containing compositions, pigment-containing compositions, paints, ink compositions, liquid developers, and anti-blocking agents.

Polyallylamine derivative

A pigment dispersant which includes a modified polyamine obtained by the reaction of a polyamine having two or more primary and/or secondary amino groups per molecule and containing 2 to 1800 nitrogen atoms per molecule, a polyester, and a phosphorus-containing compound. The modified polyamine exhibits excellent pigment dispersion performance, shows little change in color tone upon heating, and has excellent heat resistance.

Modified polyamine

Insulator and high frequency connector

The present invention relates to a resin composition having a high dielectric constant and a low dielectric loss tangent under high frequency conditions and articles obtained therefrom. The resin composition comprises 100 parts by weight of thermoplastic resin and 50-900 parts by weight of ferroelectric material. The formed articles can be used as substrates for a miniaturized antenna or circuit.

Resin composition and articles made therefrom

A resin composition comprising 100 parts by weight of a thermoplastic resin and 1 to 50 parts by weight of an antistatic composition consisting essentially of 100 parts by weight of carbon fibers having a length of 0.01 to 100 mm and 5 to 70 parts by weight of carbon fibers having a length of 1/2 to 1/100 of the first carbon fibers is molded to obtain a molded article having an even antistatic effect over the surface in which molded article the antistatic agent (carbon fibers) does not bleed to the exterior and the antistatic effect is maintained for a long time.

Growing community of inventors

Kawasaki, Japan

Yuji Koshima