Asahi Kasei Kogyo Kabushiki Kaisha

Asahi Kasei Kabushiki Kaisha

Daikin Industries, Ltd.

Okayama University

Asahi Kasei E-materials Corporation

Asahi Kasei Kogyo K.k.

Asahi Kogaku Kogyo Kabushiki Kaisha

Kagoshima University

The Noguchi Institute

Masanori Ikeda

Hideo Saito

Masanori Baba

Takeshi Aoyagi

Atsushi Aoshima

Nobuyuki Uematsu

Morikazu Miura

Takehiro Koga

Hiroyuki Fukui

Masahiro Kondo

Tadaharu Isaka

Tadashi Ino

Yoshio Suzuki

Nobuto Hoshi

Nobuyuki Kato

Akihiro Yoshida

Takashi Ono

Joji Nishikido

Masahiro Tojo

Nobuhiro Tamura

Hiroshi Kamo

Yusuke Wataya

Hye-Sook Kim

Tamotsu Kodama

Kenichi Sanechika

Takashi Minakata

Masakatsu Kuroki

Oliver Gronwald

Shingo Kuga

Toshio Imauti

Masanori Tanabe

Hiroyuki Doi

Midori Takeda

It is an object of the present invention to provide a novel therapeutic agent for hepatoma viruses. Specifically, the present invention relates to an anti-hepatoma virus agent, containing as an active ingredient a compound represented by the following Formula (I) or a pharmaceutically acceptable salt thereof: (wherein Ris fluorine or hydrogen).

Anti-hepatoma-virus agent

Provided is a novel anti-HCV agent including as an active ingredient a peroxide derivative represented by the general formula (I). In the general formula (I), C represents an alicyclic hydrocarbon ring group which may be substituted, n represents an integer of from 1 to 6, and R represents a hydrogen atom or a hydroxyalkyl group. The peroxide derivative exhibits potent anti-HCV activity by remarkably suppressing HCV-RNA replication.

Anti-HCV agent

The present invention provides a novel production process by which unstable terminal groups can be sufficiently stabilized under mild conditions. The present invention is related to a method for producing an &#x2014;SOH group-containing fluoropolymer wherein a fluoropolymer to be treated having a &#x2014;SOX group-containing monomer unit (X representing F or Cl) is subjected to a procedure comprising at least the steps A, B and C defined below in that order:

[object Object]

A superacidic ester group is useful in the production of ionomers for polymer electrolyte fuel cells. A polymer is produced from said vinyl monomer. A process produces a polymer containing a superacidic group. The vinyl monomer contains a haloalkyl ester group of a superacid, wherein the number of carbon atoms of the haloalkyl ester group is no more than 10, and the halogen in the haloalkyl group is chlorine and/or fluorine. A polymer containing said vinyl monomer as a repeating unit can be converted to a polymer containing a superacid group using at least one procedure of 1) heat treating at 50&#xb0;C. to 350&#xb0;C., and 2) contacting with a protic compound.

Vinyl monomer with superacid ester group and polymer of the same

There is provided a process for producing a fluorinated vinyl ether from a fluorinated acid fluoride compound having an ester group as a precursor of a carboxylic acid group, or a SOF group as a precursor of a sulfonic acid group, in high yield by simple operations. Said process is a production process comprising pyrolyzing a carboxylic acid potassium salt with a specific structure represented by the following formula in the absence of a solvent and/or while maintaining the salt in the solid state: wherein X is &#x2014;COR or &#x2014;SOF, and R is an alkyl group.

Process for producing fluorinated vinyl ether

The present invention relates to a polyphenylene ether-based resin composition comprising a polyphenylene ether-based resin and at least one member selected from cage silsesquioxanes and partially cleaved structures of cage silsesquioxanes. The polyphenylene ether-based resin composition of the invention is excellent in heat resistance, mechanical properties, moldability and flame resistance.

Polyphenylene ether-based resin composition containing silicon compound

A Lewis acid catalyst composition comprising a specific mixed medium and a Lewis acid catalyst, wherein the Lewis acid catalyst is at least one compound selected from the group consisting of compounds respectively represented by the following formulae (1) and (2):[(RSO)(RSO)N]M,&#x2003;&#x2003;(1)and[(RSO)(RSO)(RSO)C]M. &#x2003;&#x2003;(2)A method for continuously performing a reaction which proceeds in the presence of the above-mentioned Lewis acid catalyst by using a specific mixed medium and the above-mentioned Lewis acid catalyst. A novel Lewis acid catalyst.

Lewis acid catalyst composition

The present invention relates to a method for producing a perfluorovinylcarboxylic acid ester by reacting a perfluorovinylcarboxylic acid salt with an alkylating agent. The present invention provides a method to produce perfluorovinylcarboxylic acid ester, which is used as a raw material of an ion-exchange membrane for the chloro alkali process, in high yield from starting material, a compound which can be easily produced, in a simple manner.

Process for producing perfluorovinylcarboxylic acid ester

Resin composition

Hexaazaisowurtzitane derivative and method for producing the same

Disclosed is a novel hybrid polymeric electrolyte formed of a closed-cell cellular polymer foam impregnated with a non-aqueous electrolytic liquid, which comprises a plurality of closed cells defined by cell walls constituting a continuous solid-phase matrix which is impregnated with the non-aqueous electrolytic liquid to form a continuous solid-phase domain, in which the plurality of closed cells are substantially filled with a non-aqueous electrolytic liquid to form a plurality of liquid phase domains which are dispersed in the above-mentioned continuous solid-phase domain. The hybrid polymeric electrolyte of the present invention has not only high ionic conductivity and high mechanical strength, but also has the ability to prevent the non-aqueous electrolytic liquid from leakage. The non-aqueous electrochemical device comprising the hybrid polymeric electrolyte of the present invention exhibits excellent electrochemical performance, and also retains electrolytic liquid well.

Hybrid polymeric electrolyte and non-aqueous electrochemical device comprising the same

A high molecular weight polyimidoylamidine having an intrinsic viscosity of from 0.25 dl/g to 0.60 dl/g and a high molecular weight polytriazine derived therefrom having an intrinsic viscosity of from 0.25 dl/g to 0.65 dl/g are disclosed. A polyimidoylamidine having a molecular weight in a wide range, including high molecular weight, can advantageously be obtained by reacting a perfluoropolyether dinitrile with ammonia and reacting the resultant reaction product with a specific amount of a perfluoropolyether dinitrile. A terminal-stabilized polytriazine and its preparation methods are also disclosed. A polytrizine, which contains a nitrile group at side chains thereof and has an intrinsic viscosity within a specific range, is particularly suitable as a precursor of a perfluoroelastomer having excellent mechanical and chemical properties.

High molecular weight polyimidoylamidine and a polytriazine derived

Disclosed is a lubricant oil composition comprising: (A) a fluorine-containing aromatic compound, and (B) an alkyl- or alkyl derivative-substituted aromatic compound having a kinetic viscosity of from 0.1 to 500 cSt as measured at 40 .degree. C., wherein: the compound (A) is represented by the formula:

Lubricant oil composition comprising a fluorine-containing aromatic

A process for the treatment of a quaternary onium salt is described. The process comprises the steps of (i) contacting an organic phase soaringly miscible in water containing a quaternary onium fluorine-containing carboxylate of RfCO.sub.2.sup.-+ AR.sup.1 R.sup.2 R.sup.3 R.sup.4 as defined in the present Specification with an aqueous phase containing a thiocyanate ion to form a quaternary onium thiocyanate in the organic phase and (ii) contacting the organic phase containing the quaternary onium thiocyanate with an aqueous solution containing a water-soluble oxidizing agent to decompose the thiocyanate ion and to form an easily ion exchangeable quaternary onium salt. Also, applications of this treatment to a process for preparing hexafluoropropylene oxide from hexafluoropropylene in a two-phase system of an aqueous phase and an organic phase by using a hypochlorite as an oxidizing agent in the presence of a quaternary onium salt as a catalyst are described.

Process for the treatment of quaternary onium salts and its application

Growing community of inventors

Fuji, Japan

Masanori Ikeda