Kanegafuchi Kagaku Kogyo Kabushiki Kaisha

Takashi Sakauchi

Satoshi Tonoki

Takuji Nomura

Akiyoshi Somemiya

Kenichi Yokota

Shogo Miki

Shigeo Nishita

Yoshio Iki

Yuusuke Honma

Satoshi Nakatsuka

Naohisa Tomoda

Fumihiko Mohri

Koichi Nagai

Yoshitaka Sato

Koji Sezaki

Disclosed is a magnet which is composed mainly of magnetic powders expressed by R-T-B (R is Nd or that partially replaced with rare earth elements and T is Fe or that partially replaced with transition metal.) and a chelate resin or a chelate resin in admixture with other synthetic resins. The magnetic has markedly improved resistance to deterioration caused by oxidation and corrosion.

Magnet and method for manufacturing the same

Soft magnetic material composition and molding process therefor

Multipolarly magnetized magnet

A resinous composition having an increased flame retardance is disclosed, which comprises (A) 10 to 60% by weight of a mixture comprising 100 parts by weight of a polyolefin resin, 20 to 60 parts by weight of a halogenated organic flame-retardant agent, 7 to 30 parts by weight of antimony trioxide and 10 to 40 parts by weight of zinc borate hydrate, and (B) 90 to 40% by weight of a magnetic body powder. The compositions are endowed with surprising glowing combustion resistance as well as superior flame combustion resistance.

Resinous composition having an increased flame retardance

A fire resistant polymer composition comprising 99.9 to 50 parts by weight of a copolymer consisting essentially of 90 to 10 weight percent nuclear-halogenated aromatic vinyl compound, 10 to 90 weight percent cyanized vinyl compound, and 0 to 30 weight percent one or more monomers copolymerizable therewith; 0 to 20 parts by weight rubber-like polymer; and 0.1 to 30 parts by weight of a member selected from the group consisting of iron family compounds, tin compounds, and mixtures thereof.

Fire resistant polymer composition

A process for preparing polyphenylene oxides by oxidizing a nuceus substituted phenol with oxygen in the presence of a basic manganese chelate compound.

Process for preparation of polyphenylene oxides

Growing community of inventors

Ohtsu, Japan

Takashi Sakauchi