Mitsubishi Rayon Company, Limited

Toshio Nagasaka

Kunio Iwase

Hiroki Hatakeyama

Hajime Itoh

Kazuhiko Hotta

Masakazu Hoshino

Mitsunori Sugihara

Toshimi Yanai

Yukihiro Ikegami

Eizou Sakurai

Disclosed is a resin composition having excellent impact resistance and resistance to whitening by impact without deteriorating excellent transparency of a methacrylic resin. Specifically, an impact resistance modifier composed of a multilayered polymer having at least three layers, namely an innermost-layer polymer derived from an alkyl methacrylate, an intermediate-layer polymer derived from an alkyl acrylate and an outer-layer polymer having its Tg within the range of 20 to 80&#xb0; C., wherein mass average particle diameter of the intermediate-layer polymer is 200 to 300 nm and the mass ratio of each layer is within an appropriate range, is blended with a methacrylic resin.

Impact resistance modifier and resin composition

A metal-containing monomer dissolved mixture comprising a reaction product of an inorganic metal compound with a carboxyl group-containing radical polymerizable monomer, an organic solvent including at least an alcohol-based solvent, and water, wherein the water content is from 0.01 to 30% by weight; a metal-containing resin obtained by copolymerizing the metal-containing monomer (A) in this dissolved mixture with the other radical-polymerizable unsaturated monomer (B); an antifouling paint composition obtained by using this metal-containing resin; and an antifouling paint composition comprising a divalent metal-containing resin (C), a compound (D) of R &mdash;SH (wherein, R represents an organic group having 1 to 30 carbon atoms.), and copper oxide (E), are disclosed.

Metal-containing monomer dissolved mixture, metal-containing resin and antifouling paint composition

A floppy disk in which the binder for fixing a magnetic substance in the recording layer of the magnetic disk is a polyester polyurethane and the liner of the jacket contains an acrylic fiber and in addition a fiber treating agent having a surface tension in a specific range. The floppy disk is excellent in workability, can be prepared in high yields because the number of dusts generated upon its preparation is small, and also is excellent in the permanence of recording performance.

Floppy disk

Growing community of inventors

Aichia, Japan

Toshio Nagasaka