Daikin Industries, Ltd.

Osaka University

Kazuyuki Satoh

Takayuki Araki

Fumihiko Yamaguchi

Masamichi Morita

Akihiro Oshima

Mitsuhiro Usugaya

Yasushi Nakamae

Masato Ioki

Hiroko Yano

Kenji Adachi

Shigehito Sagisaka

Takayuki Tanaka

Hideki Nakaya

Yuko Shiotani

Hidenori Ozaki

Yoshikage Ohmukai

Tetsuya Matsuura

Mihoko Sakai

Ryosuke Senba

Provided is a method for producing low-molecular-weight polytetrafluoroethylene which is less likely to generate C6-C14 perfluorocarboxylic acids and salts thereof. The disclosure relates to a method for producing low-molecular-weight polytetrafluoroethylene having a melt viscosity at 380&#xb0; C. of 1.0&#xd7;10to 7.0&#xd7;10Pa&#xb7;s. The method includes (1) irradiating high-molecular-weight polytetrafluoroethylene with radiation in a substantially oxygen-free state and decomposing the high-molecular-weight polytetrafluoroethylene into a low-molecular-weight component and (2) deactivating, in a substantially oxygen-free state, at least part of main-chain radicals and end radicals generated by the irradiation and providing the low-molecular-weight polytetrafluoroethylene.

Method for producing low-molecular-weight polytetrafluoroethylene

A molding material including a resin material that has a graft chain containing constituent units derived from a fluorine-containing compound and a non-fluorinated compound. The graft chain thereof may be formed, for example, using ionizing radiation.

Molding material and method for producing resin molded body using same

A method for producing a molded article from a molding material, wherein the molding material contains a fluorine-containing graft chain. Also disclosed is a molding material for a fluorine-containing molded article including a resin material having a graft chain.

Method for producing molded article

The present invention aims to provide a light-concentrating film capable of concentrating at least one of direct sunlight and diffuse sunlight with high efficiency; a photovoltaic module having the light-concentrating film; and a transfer mold (die) for producing the light-concentrating film. The present invention relates to a light-concentrating film including alternating fine concavo-convex structure on at least one surface, the film having a concavo-convex height (H) of 0.05 to 15 &#x3bc;m and a concavo-convex pitch (P) of 0.05 to 50 &#x3bc;m, the film concentrating at least one of direct sunlight and diffuse sunlight.

Light-condensing film, solar cell module, and transfer mold

The present invention provides a focusing method and a light-concentrating film capable of concentrating incident light in a wide angular range with high efficiency, a focusing element including the light-concentrating film, and a solar cell. The present invention is alight-concentrating film that is made of an organic material, and is characterized by having a multilevel gradation pattern.

Light-concentrating film, method for producing same, focusing element, solar cell, and focusing method

The invention relates to a carpet comprising a stainproof-treated textile, wherein the carpet has stainproof ratio (%) of at least 30% as defined below:Stainproof ratio (%)=100&#xd7;(&#x394;)/&#x394;

Carpet, stainproofing agent for carpet and method for treating the carpet

A surface treatment agent, which contains:

Surface treatment agent comprising inorganic-organic hybrid material

Growing community of inventors

Settsu, Japan

Kazuyuki Satoh