Daikin Industries, Ltd.

Other

Dow Corning Corporation

Dow Corning Toray Company, Ltd.

Nissin Chemical Industry Co., Ltd.

Daikin America, Inc.

Katsuhide Ohtani

Tadahiro Ohmi

Takahisa Aoyama

Tetsuo Shimizu

Kazuo Kobayashi

Igor Chorvath

Masamichi Sukegawa

Haruhisa Masuda

Lauren Marie Tonge

Hitoshi Imamura

Tomihiko Yanagiguchi

Tadahiro Yabu

Masakazu Irie

Kazuhiro Yamamura

Toshiki Ichisaka

Yuji Gama

Michiko Doi

Tsuyoshi Ono

Takeshi Fukuzumi

Tomohiro Kino

Ron Klein

Tatyana Collins

Shoichi Arima

A core-shell particle including a core containing a perfluoropolymer and a shell containing a non-fluorine resin, the core having a periphery coated with the non-fluorine resin at a coverage of 90% or more, the perfluoropolymer being a polymer containing a polymerized unit based on a perfluoro monomer in an amount of 90 mol % or more relative to all polymerized units, and the shell having a mass of 50 or less relative to a total mass of the core and the shell of 80. Also disclosed is a method for producing the core-shell particle.

Core-shell type particle, dispersion and powder

The present invention relates to a fluorine-containing resin composition for molding comprising a fluorine-containing resin (A) and a hydrofluoric acid scavenger (B), in which the hydrofluoric acid scavenger (B) is organopolysiloxane. According to the present invention, a fluorine-containing resin composition which can reduce an amount of hydrofluoric acid released from a fluorine-containing resin and inhibits corrosiveness can be provided.

Fluorine-containing resin composition inhibiting corrosiveness

Highly ozone-resistant molding/shaped articles inclusive of piping materials and joints for use in semiconductor production lines, molding materials for ozone-resistant molding/shaped articles which are suited for the production of the molding/shaped articles, and ozone-resistant injection-molded articles and relevant injection-molding materials. Also disclosed is a molding material for ozone-resistant molding/shaped articles including a copolymer (A) and having a melt flow rate of 0.1&#x2013;50 g/10 minute. The copolymer (A) is a copolymer including tetrafluoroethylene and a perfluorovinylether, and has not less than 3.5 mass % of a perfluorovinylether unit, a melting point of not less than 295&#xb0; C., and not more than 50 of unstable terminal groups per 1&#xd7;10carbon atoms in the copolymer (A).

Molding material for ozone-resistant articles and ozone-resistant injection-molded articles

A fluorine-containing resin molded article can be obtained by putting it between smooth molds having a surface roughness (Ra) of not more than 50 .ANG. and compression-molding it under molding conditions of a molding temperature of 270.degree. to 340.degree. C., a molding pressure of not less than 10 kg/cm.sup.2 and compression time of not less than 2 minutes, to give smoothed fluorine-containing resin molded article having a surface roughness of not more than 500 .ANG.. Particles, metal impurities, organic impurities or the like are difficult to adhere to the surface of the article, and can be removed significantly by washing.

Method of smoothing fluorine-containing resin molded article and

Growing community of inventors

Settsu, Japan

Katsuhide Ohtani