Daikin Industries, Ltd.

Minolta Camera Kabushiki Kaisha

Minolta Company, Ltd.

Nara Institute of Science and Technology

Hitachi Maxell Kabushiki Kaisha

Showa Yuki Kabushiki Kaisha

Kobe University

National University Corporation Nara Institute of Science and Technology

Yoshito Tanaka

Takayuki Araki

Tetsuo Shimizu

Masahiro Kumegawa

Noritoshi Oka

Yoshihiro Tanaka

Mihoko Ohashi

Nobuyuki Taniguchi

Dai Shintani

Tsuyoshi Noguchi

Toshiharu Yagi

Hisato Sanemasa

Kenji Nakamura

Takeo Hoda

Nobuhiko Tsuda

Katsuyuki Nanba

Shinji Tominaga

Hirokazu Naruto

Jun Miki

Yuko Shiotani

Norihito Otsuki

Masami Kato

Takuma Kawabe

Kazumi Kageyama

Kohsaku Sakaguchi

Hiroyuki Okada

Yuzo Komatsu

Takayuki Nakamura

Motonobu Matsuda

Tomohiro Yoshida

Yutaka Maeda

Shigehito Sagisaka

Yasuhiro Kyoden

Tsuyoshi Ando

Shota Shibutani

Hirokazu Aoyama

Ikuo Yamamoto

Yosuke Kishikawa

Meiten Koh

Mitsuru Kishine

Sadafusa Tsuji

Katsuhiko Imoto

Hirotoshi Yoshida

Masahiro Higashi

Masayoshi Tatemoto

Masao Tanihara

Masanori Kitaichi

Toshio Yamaki

Haruhiko Mohri

Masaji Komori

Yuuki Suzuki

Takuji Ishikawa

Tadashi Kanbara

Kengo Ito

Makoto Matsuura

Michiaki Okada

Atsushi Shirai

Tsuyoshi Miyamori

Norimasa Uesugi

Hiroshi Ishibe

Yoshihide Higashihata

Sadashige Irie

Kouji Kubota

Hiroshi Kiten

Yuji Imahori

Atsushi Kuwada

Shouta Shibutani

Mayumi Iida

Yoshikage Ohmukai

Akitoshi Ogata

Yoshito Ando

Hiromichi Sakuma

Jouji Saito

Nobuo Murase

Kayo Terada

Shiomi Ashida

Rena Inamasu

Minako Inomata

Sumiko Yubara

Takashi Nishioka

Torahiko Nagano

Akiko Ohya

Tadahiro Kuwa

Shinichi Kosaki

Masayasu Totani

Nobuyuki Taniquchi

Hideki Tanabe

Hideto Minami

An object of the present disclosure is to provide a method for producing a fluorine-containing polymer and a composition containing the fluorine-containing polymer. The present disclosure provides a composition comprising (A) a fluorine-containing polymer comprising as a main component a structural unit containing a fluorine-containing aliphatic ring, and (B) an aprotic solvent, wherein the fluorine-containing aliphatic ring of the fluorine-containing polymer (A) contains one, two, or three etheric oxygen atoms as a ring-constituting atom; when the fluorine-containing aliphatic ring contains a plurality of etheric oxygen atoms, the etheric oxygen atoms are not adjacent to each other; and the fluorine-containing polymer (A) is present in an amount of 20 mass % or more based on the mass of the composition.

Method for producing fluorine-containing polymer and composition thereof

A water- and oil-repellent agent for fibers containing a bottle brush polymer having a structure represented by the following formula (1), wherein Ris H or CH; Ris a divalent organic group; Ris a polymer chain having a structure represented by the following formula (2) (wherein Ris H or CH; Ris a C16-C40 monovalent hydrocarbon group; and n is an integer of 10 to 1000); and m is an integer of 10 to 5000:

Water repellent oil repellent agent for fibers and fiber product

A water repellent composition containing: (A) water repellent particles in which the number of surface alkyl groups on the water repellent particles is 600×10-50,000×10per 1 g of water repellent particles; (B) a water-repellent resin which is a polymer having a long-chain Chydrocarbon group; and (C) a liquid medium. The water-repellent particles preferably have an average primary particle size of 1-100 nm. Also disclosed is a method for treating a fiber using the water repellent composition, a method for producing a treated textile product, a film formed from the water repellent composition, and a textile product treated with a treatment liquid containing the water-repellent composition.

Water-repellent composition

A fluorine-containing epoxy resin for an electronic component represented by the following formula (E) wherein n is an integer of 0 or greater, an average value of n is 0.18 or smaller, and M is a group represented by the following formula (E1), a group represented by the following formula (E2), or a group represented by the following formula (E3) wherein Z is hydrogen or a C2-C10 fluoroalkyl group. The formula (E) being: the formula (E1) being: the formula (E2) being: the formula (E3) being: Also disclosed is a method for producing the fluorine-containing epoxy resin as well as a curable composition containing the fluorine-containing epoxy resin and a curing agent.

Fluorine-containing epoxy resin for electrical materials and method for manufacturing same

An antimicrobial article, a cell culture article, an antithrombotic article, or a biopharmaceutical article that can reduce adhesion of proteins, blood components, cells, or bacteria containing a copolymer that contains a polymerized unit (A) represented by &#x2014;CH&#x2014;CHOH&#x2014; and a polymerized unit (B) represented by &#x2014;CH&#x2014;CX&#x2014;, wherein Xs are the same as or different from each other, and are each an alkyl group having a linear, branched, or cyclic structure, and optionally containing an oxygen atom between carbon atoms, an alkoxy group having a linear, branched, or cyclic structure, and optionally containing a hetero atom between carbon atoms, a siloxy group having a carbon number of 3 or greater, an ester group containing an aromatic ring or an alkyl group and having a linear, branched, or cyclic structure, or H, excluding those in which both Xs are H.

Copolymer-comprising antimicrobial, cell culture, antithrombotic, or biopharmaceutical article

The present invention aims to provide a heat-curable composition that is capable of providing a cured product having low vapor permeability, a low linear expansion coefficient, and a low refractive index. The present invention relates to a curable composition including a fluorine-containing polymer having a hydroxyl value of 100 mgKOH/g or higher and a refractive index of 1.42 or lower and an epoxy compound.

Curable composition

Provided is a paint composition which can give a coating having excellent stretchability and further having excellent contamination resistance. A solvent-based paint composition comprises a fluorocopolymer (I), and an organic solvent (II), the fluorocopolymer (I) including: a perhaloolefin structural unit (a) that contains two carbon atoms, a vinyl acetate structural unit (b), a hydroxyl group-containing vinyl monomer structural unit (c) represented by the following formula (1): CH&#x2550;CH&#x2014;O&#x2014;(CH)&#x2014;OH wherein n is an integer of 2 or more, and a carboxyl group-containing monomer structural unit (d) represented by the following formula (2): RRC&#x2550;CR&#x2014;(CH)&#x2014;COOH wherein R, R, and Rare the same as or different from one another, and each a hydrogen atom or a C1-C10 linear or branched alkyl group; and m is an integer of 2 or more.

Solvent-based paint composition and fluorine-containing copolymer

The present invention aims to provide a porous polymer membrane that is excellent not only in water permeability and alkali resistance but also in mechanical strength. The porous polymer membrane of the present invention includes a fluoropolymer (A) that includes a vinylidene fluoride unit and a tetrafluoroethylene unit.

Porous polymer film and production method for porous polymer film

A fluoropolymer including a vinylidene fluoride unit, a tetrafluoroethylene unit, and a unit represented by the following formula (1):&#x2014;CHX&#x2014;CX(OR)&#x2014;&#x2003;&#x2003;(1)wherein one of Xand Xis a hydrogen atom, and the other is a fluorine atom; and R is a hydrogen atom or a C-Calkyl group.

Fluoropolymer, production method for fluoropolymer, and porous polymer film

A material for solid polyelectrolytes which comprises a polymer comprising two or more fluoropolymer segments differing in monomer composition, wherein at least one of the fluoropolymer segments has sulfonic acid type functional groups.

Material for solid polyelectrolyte suitable for use in fuel cell

There are provided a curable fluorine-containing polymer which can realize a high hardness by photo-curing while maintaining a low refractive index, an antireflection film possessing improved scratch resistance and abrasion resistance while maintaining a reflection reducing effect, and an antireflection-treated article provided with such an antireflection film. The curable fluorine-containing polymer has a number average molecular weight of from 500 to 1,000,000 and is represented by the formula (1):AM&#x2003;&#x2003;(1)in which the structural unit M is a structural unit derived from a fluorine-containing ethylenic monomer and represented by the formula (M): 

Curable fluorine-containing polymer, curable resin composition prepared from same and antireflection film

It is possible to provide the heat resistant material and coating material for OA equipment which comprise a fluorine-containing multi-segment polymer having heat resistance, abrasion resistance, non-sticking property against toner and oil resistance in addition to flexibility and are used particularly on surfaces of fuser roll and belt. Those materials comprise a fluorine-containing multi-segment polymer having an elastomeric fluorine-containing polymer chain segment A and a non-elastomeric fluorine-containing polymer chain segment B, and the elastomeric fluorine-containing polymer chain segment A comprises not less than 90% by mole of perhaloolefin unit as a recurring unit and imparts flexibility to the whole polymer.

Heat-resistant material and coating material for OA equipments having flexibility

The invention is a material for a solid polyelectrolyte, comprising a multi-segmented fluoropolymer that comprises a block copolymer and/or a graft copolymer, wherein the copolymer contains one or more blocks essentially consisting of segment A and one or more blocks essentially consisting of segment B, the segment A combines with the segment B, wherein the segment A has a molecular weight of 5,000 to 1,000.000, and the Segment A is a copolymer chain comprising (a) an ethylenicfluoromonomer containing sulfonic acid functional groups each represented by Formula (1) CX&#x2550;CX&#x2014;(O)&#x2014;Rf&#x2014;SOY, wherein X and Xmay be the same or different and are each hydrogen or fluorine; Y is FI, Cl, or OYwherein yis hydrogen, alkali metal or C-Calkyl; Rf is Cto Cdivalent fluoroalkylene or Cto Cdivalent fluoroalkylene having one or more ether bonds; and n is 0 or 1; and (b) at least one type of ethylenic fluoromonomer copolymerizable with the ethylenic fluoromonomer (a) and containing no sulfonic acid functional groups, the segment B is a fluoropolymer containing no sulfonic acid functional groups, has a molecular weight of 3,000 to 1,200,000, and has a crystalline melting point of 100&#xb0; C. or higher or a glass transition point of 100&#xb0; C. or higher, wherein the ratio of segment A:segment B in the segmented fluoropolymer is 5:9&#x2dc;to 98:2 30:70 to 90:10 wt. %.

Fluorocopolymer material with sulfonic acid functional groups as a solid polyelectrolyte for use in fuel cells

There is provided a fluorine-containing resin composition which is used for nonlinear optical material and comprises (I) a fluorine-containing prepolymer and (II) an organic compound exhibiting a second- or higher-order nonlinear optical effect, in which the fluorine-containing prepolymer (I): (1) is a non-crystalline polymer having a fluorine content of not less than 25% and (2) has a carbon-carbon double bond in a polymer side chain or at an end of a polymer trunk chain and also there is provided a nonlinear optical waveguide device produced from the fluorine-containing resin composition. A suitable nonlinear optical material having a stable structure with a nonlinear substance is produced, and an excellent nonlinear optical waveguide device is produced by relatively simple steps while maintaining transparency in a near infrared region.

Nonlinear optical materials comprising fluorine-containing polymer

There is provided an optical material obtained from an organic composition which is suitable for an optical material in optical communication and comprises a fluorine-containing polymer having functional group and a rare earth metal ion, in which the fluorine-containing polymer having functional group has at least one ketone structure in its side chain and a maximum absorption coefficient of not more than 1 cmin each wavelength range of from 1,290 to 1,320 nm, from 1,530 to 1,570 nm and from 600 to 900 nm and the rare earth metal ion is at least one selected from the group consisting of erbium (Er) ion, thulium (Tm) ion, praseodymium (Pr) ion, holmium (Ho) ion, neodymium (Nd) ion, europium (Eu) ion, dysprosium (Dy) ion, samarium (Sm) ion and cerium (Ce) ion.

Optical material containing fluorine-containing polymer having functional group

Growing community of inventors

Settsu, Japan

Yoshito Tanaka