Jsr Corporation

Motoki Okaniwa

Takashi Okada

Takaaki Uno

Shintaro Fujitomi

Yukio Hosaka

Katsuya Nagaya

Nobuyuki Miyaki

Yuichi Hashiguchi

Toshihiro Otsuki

Toshimitsu Kikuchi

Yuuichi Eriyama

Fujio Sakurai

Kouji Senoo

Satoshi Shimobaba

Ichiro Kajiwara

Yoichiro Maruyama

Yoshimi Suwa

The present invention relates to a production process for an electrode material, an electrode and an electric storage device, and the production process for an electrode material comprises a step of heating a polymer having a silicon-containing unit and a silicon-non-containing unit.

Production process for electrode material, electrode and electric storage device

An optical filter comprising a substrate and a dielectric multilayer film formed on at least one surface of the substrate, wherein the substrate comprises an aromatic polyether-based polymer having a glass transition temperature (Tg), measured via differential scanning calorimetry (DSC, heating rate: 20&#xb0; C./min), of from 230 to 350&#xb0; C.

Optical filter and imaging device comprising the same

There are provided a substrate for printed wiring excellent in light transmission property, heat resistance, mechanical strength and resistance to thermal coloration; a printed wiring laminate; and a resin composition used to produce the substrate and the laminate. The substrate for printed wiring comprises an aromatic polyether-typed polymer having a glass transition temperature, as measured by differential scanning calorimetry (DSC, heating rate: 20&#xb0; C./minute), of from 230&#xb0; C. to 350&#xb0; C.

Substrate for printed wiring and resin composition used therefor

A polymer comprising: at least one structural unit (i) selected from the group consisting of a structural unit represented by formula (1) below and a structural unit represented by formula (2) below, wherein a terminal structure of said polymer is independently a structural unit represented by formula (5) below or a structural unit represented by formula (6) below. 

Polymer, method for manufacturing the same, and film

A cycloolefin copolymer obtained by ring opening polymerization according to the present invention is characterized by comprising a specific structural unit and exhibiting a single peak in a derivative differential scanning calorimetry curve obtained by differential scanning calorimeter (DSC), having a temperature width of the rising part in the peak of 35&#xb0; C. or below, and having a glass transition temperature (Tg) of 110&#xb0; C. or above. The cycloolefin copolymer provided by the present invention has excellent heat resistance and optical properties, is suitable for the formation of a film or sheet therefrom, and can be stretched even at a relatively low temperature around the Tg without causing troubles such as cloudiness. A film or sheet comprising the cycloolefin copolymer, which has excellent optical properties and heat resistance and is also suitable for stretching even at a relatively low temperature, is also provided. Further, there are also provided a retardation plate having excellent optical properties and heat resistance and having uniform retardation, and a process for producing the retardation plate.

Cycloolefin copolymer obtained by ring-opening polymerization, use thereof, and process for producing retardation plate comprising the copolymer

Growing community of inventors

Tokyo, Japan

Motoki Okaniwa