Tosoh Corporation

Monsanto Kasei Company

Tosoh Finechem Corporation

Nippon Glass Fiber Co., Ltd.

Mitsubishi Kasei Polytec Company

Makoto Watanabe

Toshihide Yamamoto

Yuji Aoki

Shuki Araki

Masaru Uemura

Yasuo Butsugan

Morihiko Sato

Masakazu Nishiyama

Takashi Okada

Norihisa Kondo

Masao Tanabiki

Shohei Yumino

Tomoya Shimono

Satoshi Hamura

Hideki Miyauchi

Daisuke Inoue

Tomokazu Ohashi

Yusuke Shigeta

Yo Isegawa

Shota Nishida

Akio Kisaichi

A method of stabilizing perfluoro(2-methylene-4-methyl-1,3-dioxolane) (hereinafter simply referred to as a 'stabilization method'), including incorporating at least one selected from the group consisting of a hydroxy group-containing fluoroaromatic compound represented by General Formula (1) below and a hydroxy group-containing fluoroaromatic compound represented by General Formula (2) below into a composition containing perfluoro(2-methylene-4-methyl-1,3-dioxolane): (in the formula, Rto Reach independently represent one selected from the group consisting of a fluorine atom, a perfluoroalkyl group and a hydroxy group, and at least one of Rto Ris a hydroxy group); (in the formula, Rto Reach independently represent one selected from the group consisting of a fluorine atom, a perfluoroalkyl group and a hydroxy group, and at least one of Rto Ris a hydroxy group).

Method of stabilizing perfluoro(2-methylene-4-methyl-1,3-dioxolane) and composition containing stabilized perfluoro(2-methylene-4-methyl-1,3-dioxolane)

There are provided a heteroacene derivative having an excellent oxidation resistance and capable of forming a semiconductor active phase by a coating process, and an oxidation-resistant organic semiconductor material using the same, as well as an organic thin film. A heteroacene derivative represented by the formula (1) is obtained by tetrametalation of a tetrahaloterphenyl derivative with a metalation agent and subsequent treatment of the resulting compound with reaction agents: wherein the substituents Rto Rare the same or different and each represents a hydrogen atom, a fluorine atom, a chlorine atom, an aryl group having 4 to 30 carbon atoms, an alkyl group having 3 to 20 carbon atoms, or a halogenated alkyl group having 1 to 20 carbon atoms; Tand Tare the same or different and each represents sulfur, selenium, tellurium, oxygen, phosphorus, boron, or aluminum; l and m each is an integer of 0 or 1; and rings A and B are the same or different and each has a structure represented by the following formulae (A-1) or (A-2).

Heteroacene derivative, tetrahaloterphenyl derivative, and processes for producing the same

An object of the present invention relates to provision of a terphenylene derivative having excellent oxidation resistance and capable of forming a semiconductor active phase by a coating process and an oxidation-resistant organic semiconductor material using the same, as well as an organic thin film. The invention relates to production of a terphenylene derivative represented by the formula (1) by tetralithiating a tetrahaloterphenyl derivative with a lithiating agent and subsequently treating the resulting compound with a copper compound: [ka 1] 

Terphenylene derivative, tetrahaloterphenyl derivative, and processes for producing both

A transition metal compound having a ligand with an azaferrocene structure or a ferrocene structure. The transition metal compound is used in combination with an activating cocatalyst, as a catalyst for polymerization of olefins.

Transition metal compound, coordinative compound, catalyst for polymerization of olefin, and process for polymerization of olefin using the catalyst

Nitrogen-heterocyclic compound and process for production thereof

A ferrocene derivatives represented by the following formula (I): ##STR1## can be a useful ligand to metals with Lewis acidity and is used as a catalyst for asymmetric synthesis with good enantioselectivity. This ferrocene derivatives is synthesized from a novel haloferrocene derivative represented by formula (II) and the haloferrocene derivative is synthesized from a novel ferrocene derivative represented by formula (III).

Chiral amino-methyl ferrocene derivatives

An impact resistant thermoplastic resin composition which comprises: 100 parts by weight of a resin mixture comprising from 20 to 80% by weight of a polyamide resin (A) and from 20 to 80% by weight of a graft copolymer (B) composed of from 45 to 60 parts by weight of a conjugated diene rubber and from 40 to 55 parts by weight of a monomer mixture comprising from 60 to 80% by weight of an aromatic vinyl monomer component and from 20 to 40% by weight of a vinyl cyanide monomer component (provided that the total amount of said monomer mixture is 100% by weight) wherein the average particle size of graft rubber is from 0.2 to 1.0 .mu.m, the graft ratio is from 40 to 80%, and the weight average molecular weight of a resinous component composed of said monomer components is from 220,000 to 450,000; from 0.01 to 40 parts by weight of a copolymer (C) comprising from 50 to 80% by weight of an aromatic vinyl monomer component, from 0.01 to 30% by weight of an .alpha., .beta.-unsaturated dicarboxylic anhydride monomer component, from 5 to 47% by weight of at least one monomer component selected from the group consisting of an N-substituted maleimide monomer component and a vinyl cyanide monomer component, and from 0 to 30% by weight of a methyl methacrylate monomer component (provided that the total amount of the monomer components is 100% by weight); and

Impact resistant thermoplastic resin composition

A ferrocene derivatives represented by the following formula (I): ##STR1## can be a useful ligand to metals with Lewis acidity and is used as a catalyst for asymmetric synthesis with good enantioselectivety. This ferrocene derivatives is synthesized from a novel haloferrocene derivative represented by formula (II) and the haloferrocene derivative is synthesized from a novel ferrocene derivative represented by formula (III).

A glass fiber-reinforced thermoplastic resin comprising:

Glass fiber reinforced thermoplastic resin composition

A molded amide resin product prepared by injecting a mixture comprising a .omega.-lactam, a polymerization catalyst, a polymerization cocatalyst, a modified olefin and a polyamide soluble in a molten .omega.-lactam into a mold at a temperature not lower than the melting point of the .omega.-lactam, followed by molding.

Molded amide resin product and method for its preparation

An impact resistant thermoplastic resin composition which comprises:

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Yokkaichi, Japan

Makoto Watanabe