Mitsui Chemicals, Inc.

Shin-Etsu Chemical Co., Ltd.

Keio University

Yasuhiro Koike

Tadahiro Sunaga

Yuichi Okawa

Takashi Oda

Takashi Ochiai

Hirofumi Io

Takeshi Kinsho

Tomohiro Kobayashi

Keiichi Ikeda

Yoshihiro Yamamoto

Takeru Watanabe

Tadashi Asanuma

Shizuo Tokito

Yukio Ishii

Jun Okabe

Masumi Okita

Takashi Nakano

Nobuo Kawahara

Masahiro Yamashita

Tetsuya Hamada

Hitoshi Onishi

Kenji Michiue

Kazumori Kawamura

Toshiro Takao

Hiroki Mizutani

Hiroshi Kouno

Hiroshi Miyasako

Keisuke Kawashima

Tomohito Sekine

Shigeto Shigematsu

Tomoyuki Morita

Koji Yokosawa

Takeshi Osaka

Ritsuko Shibahara

A light, flexible, and tough thin film having high total light transmittance that can be formed on various three dimensional shapes, and also provides a stably driven tactile sensor, which is an electronic device having the switching function thereof, is provided. The tactile sensor is formed on a polyimide thin film having high total light transmittance, thermal resistance, and a polar component of surface free energy with a specific value, and has a switching device that emits a voltage signal which, through an electronic circuit for controlling noise, stably drives another device. This tactile sensor has a curved or flat surface and has a first electrode, a ferroelectric layer, and a second electrode formed over the polyimide thin film. The switching device as a tactile sensor can drive another device merely by a light touch with a finger, and can be manufactured at a high non-defective rate.

Tactile sensor formed on polyimide thin film having high total light transmittance, and switching device using same

Medical instrument includes a substrate, in which cells are in contact with or held on a surface of the substrate, and at least the surface of the substrate which holds the cells is formed of a fluorine-containing cyclic olefin polymer which contains a repeating structure unit represented by Formula (1), wherein in Formula (1), at least one of Rto Ris fluorine, an alkyl with 1 to 10 carbon atoms which contains fluorine, an alkoxy with 1 to 10 carbon atoms which contains fluorine, or an alkoxyalkyl with 2 to 10 carbon atoms which contains fluorine, Rto Rare selected from hydrogen and certain non-fluorinated groups when Rto Rdo not contain fluorine, Rto Rmay be the same as or different from each other, and Rto Rmay be bonded to each other to form a cyclic structure.

Medical instrument, cell culture method, fluorine-containing cyclic olefin polymer and fluorine-containing cyclic olefin polymer composition for it, and cultured cells

Provided are an expandable or bendable circuit board having good body-contact feel, strong against bending and folding, and an electronic device made therefrom. The bendable circuit board includes: a film comprising a polyurethane synthesized by reacting a long-chain polyol with polyisocyanate and having a storage modulus at 25&#xb0; C. of 20 to 200 MPa, a tensile strength of 20 to 80 MPa, and an elongation at break of 500 to 900%, and the temperature of which the storage elastic modulus reaches to 1 MPa is at 155&#xb0; C. or higher; and circuit wiring formed in contact with a surface of the film. Alternatively, an expandable circuit board having the ratio &#x3c1;/&#x3c1;of the specific electrical resistance &#x3c1; of the circuit wiring when the circuit wiring is expanded to the specific electrical resistance (&#x3a9;&#xb7;cm) &#x3c1;of the circuit wiring before the circuit wiring is expanded is within a range of 1.05 to 10.0.

Bendable circuit board, expandable circuit board, and electronic device made therefrom

Disclosed is an optical film having low wavelength dispersibility which is obtained by stretching a film formed of a fluorine-containing cyclic olefin polymer including at least one selected from a repeating structural unit represented by the formula described below, wherein a phase difference at a wavelength of 550 nm is greater than or equal to 50 nm, wavelength dispersibility represented by a ratio Re (400 nm)/Re (550 nm) of a phase difference Re (400 nm) at a wavelength of 400 nm to a phase difference Re (550 nm) at a wavelength of 550 nm is 1.00 to 1.05, wavelength dispersibility represented by a ratio Re (400 nm)/Re (800 nm) of a phase difference Re (400 nm) at a wavelength of 400 nm to a phase difference Re (800 nm) at a wavelength of 800 nm is 1.00 to 1.05, and total light transmittance is greater than or equal to 92%. 

Optical film

A fluorine-containing cyclic olefin polymer composition of the present invention includes a fluorine-containing cyclic olefin polymer (A) containing a repeating structural unit represented by the general formula (1) and having a fluorine atom content rate of 40 to 75% by mass; a photocurable compound (B); and a photocuring initiator (C). 

Fluorine-containing cyclic olefin polymer composition, imprint product obtained using the composition, and method for producing the same

Provided is an imprint product, which is for transcribing a fine pattern of a mold surface and which contains a fluorine-containing cyclic olefin polymer containing repeating unit represented by formula (1) and having a fluorine atom content rate of 40% to 75% by mass. 

Imprint product and method for producing the same

Disclosed is an optical material including a cyclic olefin copolymer containing at least a repeating structural unit [A] represented by the general formula (1) and a repeating structural unit [B] represented by the general formula (2) and having a molar ratio [A]/[B] of from 95/5 to 1/99, wherein the absolute value of the ratio &#x394;OB/&#x394;F is from 0.001 to 0.250 in which &#x394;OB represents the amount of a change in the absolute value of the orientation birefringence calculated from the phase difference (nm) at a wavelength of 633 nm/film thickness (&#x3bc;m) in a stretched film obtained from the optical material, and &#x394;F represents the amount of a change in the absolute value of the orientation coefficient determined from the dichroic ratio of parallel light intensity Ito perpendicular light intensity I, each relative to the orientation direction according to Raman spectroscopy. 

Optical material and molded product thereof

Disclosed is a method for purifying a polymer in which a solution containing a cyclic olefin polymer having at least a repeating structural unit [A] represented by the general formula (1) and a metal component is brought into contact with an organic compound having a basic functional group and an acidic functional group, and then the resulting solution is brought into contact with a basic adsorbent to remove the metal component contained in the solution. 

Method for purifying polymer and polymer

A polymer having a rate of dissolution in an alkaline developer that increases under the action of acid is provided. The polymer is prepared by reacting a hydrogenated ROMP polymer with an O-alkylating agent in the presence of a base.

Polymer, polymer preparation method, resist composition and patterning process

Provided are a ring-opening metathesis polymer and a hydrogenated product thereof that are useful as materials for an optical component, and a method for preparation thereof. The present invention relates to a ring-opening metathesis polymer comprising at least repeating structural units [A] represented by the following General Formula [1] and repeating structural units [B] represented by the following General Formula [2] at a constitutional molar ratio [A]/[B] of 0.1/99.9 to 100/0. The present invention relates to a ring-opening metathesis polymer comprising at least repeating structural units [A] represented by the following General Formula [1] and repeating structural units [B] represented by the following General Formula [2] at a constitutional molar ratio [A]/[B] of 0.1/99.9 to 100/0. 

Ring-opening metathesis polymer, hydrogenated product thereof, method for preparing the same, and use thereof

A process for synthesizing an organic transition metal complex compound with an atom group having an electron-donor ability, in an industrially and economically advantageous manner, without a compound having a proton-donor ability being a metal salt, and a metathesis catalyst produced with the use of the above process, are provided. A process for producing an organic transition metal complex compound in which an atom group having an electron-withdrawing ability can be converted into an atom group having a stronger electron-donor ability, by contacting an compound having a proton-donor ability with the organic transition metal complex compound with an atom group having an electron-withdrawing ability, in the presence of an basic compound, and a metathesis catalyst of which the content of an alkali metal is reduced, and which is obtainable with the use of the above process, are provided.

Process for producing organic transition metal complex compound, metathesis catalyst produced by using the same, ring-opening metathesis polymer obtainable with the metathesis catalyst, and process for producing the polymer

Resist compositions comprising a hydrogenated ring-opening metathesis polymer bearing an alicyclic structure in its backbone and comprising structural units having an oxygen atom incorporated as part of the cyclic structure exhibit a high resolution and minimal proximity bias upon ArF excimer laser lithography and have high etching resistance.

Hydrogenated ring-opening metathesis polymer, resist composition and patterning process

Provided is a resin having an alicyclic structure in a main chain, which is excellent in etching resistance and developing property, a resist composition for exposure with a high energy radiation using the resin, and a method for forming a pattern using the resist composition. Also provided is a hydrogenated ring-opening metathesis polymer which is comprised of alicyclic skeleton-containing structural units [A], [B] and a structural unit [C] selected from the following general formula [5] and/or [6]: wherein, e and f represent respectively an integer of 0 to 3, wherein the at least one of Xof the general formula [1] of the structural unit [A], Xof the general formula [3] and Xof the general formula [4] of the structural unit [B] is &#x2014;O&#x2014;, and wherein the molar ratio of the structural units [A], [B] and [C] satisfies simultaneously that [A]/([B]+[C]) is from 20/80 to 98/2, ([A]+[B])/[C] is from 99/1 to 50/50, and ([A]+[C])/[B] is from 99/1 to 21/79. Also, a resist composition comprising the same and a method for forming a pattern are provided.

Hydrogenated ring-opening metathesis polymer, resist composition comprising the same and patterning method

A hydrogenated ring-opening metathesis polymer containing at least structural units of the general formula [3] and/or the general formula [4] and the weight-average molecular weight Mw to the number-average molecular weight Mn (Mw/Mn) is more than 2.0 and less than 5.0: wherein Rto Rand Rto Rrepresent a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, Xs and Xs are the same or different and represent &#x2014;O&#x2014; or &#x2014;CR&#x2014; wherein Rrepresents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, one of Yand Yrepresents &#x2014;(C&#x2550;O)&#x2014; and the other of Yand Yrepresents &#x2014;CR&#x2014; wherein Rrepresents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, and m and n represent an integer of 0 or 1 to 3.

Growing community of inventors

Yamato, Japan

Tadahiro Sunaga