Japan Synthetic Rubber Co., Ltd.

Jsr Corporation

Bridgestone Corporation

Bridgestone Tire Company Limited

Sumitomo Chemical Company, Limited

Dai Nippon Printing Co., Ltd.

Kuraray Co., Ltd.

Toppan Printing Co., Ltd.

Konica-Minolta Holdings, Inc.

Dainippon Ink and Chemicals, Incorporated

Sumitomo Bakelite Company Limited

Nec Corporation

Toray Industries, Inc.

Hitachi Chemical Company, Ltd.

Noboru Oshima

Tatsuo Fujimaki

Mitsuhiko Sakakibara

Fumio Tsutsumi

Tatsuro Hamada

Kenzo Ohkita

Yoshito Yoshimura

Isamu Shimizu

Noboru Shimada

Iwakazu Hattori

Takashi Imamura

Katsutoshi Sawada

Michitaka Kaizu

Yoshihisa Fujinaga

Yooichiroh Maruyama

Seisuke Tomita

Akihiko Morikawa

Ken Sumiyoshi

Kazushige Takechi

Toshihiro Hayashi

Akimitsu Tsukuda

Ichiro Fujieda

Yoshiyuki Ono

Shinsuke Yamaguchi

Atsushi Kumano

Motoyuki Suzuki

Katsuya Fujisawa

Takashi Tsubouchi

Hisatomo Yonehara

Yoshiki Matsuoka

Satoshi Ebata

Toshimasa Eguchi

Tarou Kanamori

Tokuo Ikari

Kazuo Genda

Shigenori Yamaoka

Tatsumi Takahashi

Norimasa Sekine

Kouji Kawahara

Yasuo Tsuruoka

Hiromi Fukuoka

Yuuichi Hashiguchi

Yasuo Takeuchi

Hiroshi Mouri

Kazuo Yamamoto

Tatsuya Sakai

Hozumi Sato

Masayuki Ohashi

Kenya Makino

Hiroji Enyo

Akira Iio

Hiroharu Ikeda

Koei Komatsu

Shuichi Matsumoto

Takashi Nishioka

Nobuyuki Sakabe

Hideki Komatsu

Tooru Shibata

Katsuo Koshimura

Mikio Takeuchi

Hiroshi Oka

Yoshiharu Hashiguchi

Tomoharu Yamada

Takashi Kawata

Takayoshi Tanabe

Yoshiyuki Morimoto

Yoshishige Chikatsu

Yoshitaka Matsuo

Youichirou Maruyama

Yosihiro Ohira

Kunihiko Muramori

Akio Iakashima

Toshiaki Fukuhori

Syouei Tsuji

Mamoru Hasegawa

Masao Sakamoto

A conventional liquid crystal display comprises a number of components, so that a manufacturing cost cannot be reduced. Furthermore, a large-area substrate has problems in shipping. According to this invention, a liquid-crystal panel is prepared by forming individual optically functional films, a TFT device and a light-emitting device on a long thin film and then laminating the film by a transfer process. A base film to be a substrate in a liquid-crystal panel preferably has a thickness of 10 &#x3bc;m to 200 &#x3bc;m, a curvature radius of 40 mm or less as a measure of flexibility and a coefficient of thermal expansion of 50 ppm/&#xb0; C. or less. Furthermore, it more preferably gives a variation of &#xb1;5% or less in mechanical and optical properties to a thermal history at 200&#xb0; C.

Light-condensing film, liquid-crystal panel and backlight as well as manufacturing process for light-condensing film

A process for producing a cycloolefin addition polymer in which one or more cycloolefin monomers can be (co)polymerized by addition polymerization with a small palladium catalyst amount to produce a cycloolefin addition (co)polymer while attaining high catalytic activity. The process for cycloolefin addition polymer production is characterized by addition-polymerizing one or more cycloolefin monomers comprising a cycloolefin compound represented by a specific formula in the presence of a multi-component catalyst comprising (a) a palladium compound and (b) a specific phosphorus compound.

Process for producing cycloolefin addition polymer

Disclosed herein are a ring-opened cycloolefin copolymer excellent in optical properties such as transparency, low in water (moisture) absorption property, high in affinity for other materials, good in post processing properties such as adhesive property and printability, and excellent in heat resistance and mechanical strength, a production process thereof, and an optical material. The ring-opened cycloolefin copolymer of the invention contains a structural unit (A) represented by any one of general formulae (1-1) to (1-3) and a structural unit (B) derived from a specific cycloolefin having an ester group in a proportion of 10:90 to 50:50 in terms of a molar ratio, wherein a monomer for obtaining the structural unit (A) is a tricyclomonoolefin compound containing an endo form in a proportion of at least 80 mol % and has a glass transition temperature of 120 to 250&#xb0; C.: wherein in the general formulae (1-1) to (1-3), Rto Rindividually represent a group selected from a hydrogen atom, halogen atoms, and alkyl groups and halogenated alkyl groups having 1 to 4 carbon atoms, and Xto Xmean individually an ethylene group or vinylene group.

Cycloolefin copolymer formed by ring-opening polymerization, process for producing the same, and optical material

A cyclic olefin addition copolymer obtained by copolymerizing a cyclic olefin compound having a side chain substituent group with a ring structure, such as endo-tricyclo[4.3.0.1]deca-3,7-diene or endo-tricyclo[4.3.0.1]deca-3-ene, with another cyclic olefin compound such as bicyclo[2.2.1]hept-2-ene, and further with a cyclic olefin compound having a hydrolysable silyl group as needed, or hydrogenating after copolymerization; a composition for crosslinking in which a specific crosslinking agent is incorporated; a crosslinked product obtained by crosslinking the composition; an optical material containing the copolymer, the composition or the crosslinked product; and a method for producing the copolymer in which addition polymerization is conducted using a specific nickel catalyst.

Cycloolefin addition copolymer and optical transparent material

The present invention provides a cyclic olefin addition copolymer which has a reactive silyl group having a specific structure, excels in optical transparency, heat resistance, and adhesion, and is capable of producing a crosslinked product having improved dimensional stability, solvent resistance, and chemical resistance. The present invention also provides a process for producing the cyclic olefin addition copolymer, a crosslinking composition, a crosslinked product and a process for producing the same, and an optically transparent material (transparent resin film) comprising the cyclic olefin addition copolymer. The optically transparent material excels in optical transparency and heat resistance, exhibits improved dimensional stability, adhesion, solvent resistance, and chemical resistance, and is capable of improving fragility and preventing occurrence of cracks in the film.

Cyclic olefin addition copolymer and process for producing same, crosslinking composition, crosslinked product and process for producing same, and optically transparent material and application thereof

A cyclic olefin having a specific polar group is polymerized by addition polymerization in a hydrocarbon solvent, using a polymerization catalyst component containing (i) a specific transition metal compound, (ii) a Lewis acid compound and (iii) an alkyl aluminoxane, or the cyclic olefin is polymerized by addition polymerization in the hydrocarbon solvent, using the polymerization catalyst component, by further adding at least one aromatic vinyl compound and at least one cyclic nonconjugated polyene compound, or either one of them as a molecular weight modifier, thereby obtaining a cyclic olefinic addition polymer.

Processes for producing cycloolefin addition polymer

CYCLIC OLEFIN ADDITION COPOLYMER AND PROCESS FOR PRODUCING SAME, CROSSLINKING COMPOSITION, CROSSLINKED PRODUCT AND PROCESS FOR PRODUCING SAME, AND OPTICALLY TRANSPARENT MATERIAL AND APPLICATION THEREOF

A film for a display device produced by using a transparent (crosslinked) resin film formed of a composition including a cyclic olefin addition copolymer of the present invention has optical transparency, heat resistance, liquid crystal resistance, dimensional stability, and adhesion and is suitably used as an alternative to a glass substrate of a liquid crystal display device and an EL display device. The transparent (crosslinked) resin film can be used as a polarizing film, surface protective film, retardation film, transparent conductive film, light diffusion film, film for an EL display device, transparent conductive composite material, antireflection film, and the like.

Resin film and applications thereof

Composition of cyclic olefin addition copolymer and cross-linked material

An olefin copolymer having a functional group and having a structural unit (a) derived from ethylene, a structural unit (b) derived from an &agr;-olefin having 3 to 12 carbon atoms, and a structural unit (c) derived from a cycloolefin, exhibits an intrinsic viscosity &lsqb;&eegr;&rsqb; of 0.1 to 10 dl/g as measured in decalin at 135&deg; C. and can be used in a rubber composition.

Olefin copolymer having functional group, production process thereof and rubber composition

A water-developable photosensitive resin composition which exhibits a small swelling, small reduction in strength and small dimension change when developed with water and which has an excellent balance of characteristics. Said composition comprises (1) a oarboxyl group-containing diene polymer, (2) a hydrogenated diene block polymer in which at least 80% of the double bonds in the recurring unit consisting of conjugated diene has been hydrogenated, (3) a photopolymerizable ethylenically unsaturated monomer, (4) an amino group-containing compound and (5) a photopolymerization initiator.

Photosensitive resin composition comprising a carboxyl group-containing

Hydrogenated block copolymer and composition comprising the same

A process for producing a hydrogenation product of ring-opening polymer by hydrogenating, in the presence of a hydrogenation catalyst, the non-aromatic carbon-to-carbon double bond present in a ring-opening polymer obtained by subjecting to ring-opening polymerization at least one norbornene derivative represented by general formula (I): ##STR1## wherein A and B independently represent hydrogen atoms or hydrocarbon groups having 1-10 carbon atoms, X and Y independently represent hydrogen atoms, halogen atoms or monovalent organic groups, and m is 0 or 1, alone or in combination with a monomer copolymerizable with said norbronene derivative, characterized by using, as the hydrogenation catalyst, a ruthenium compound represented by general formula (II):

Process for producing hydrogenation product of ring-opening polymer

Growing community of inventors

Tokyo, Japan

Noboru Oshima