Idemitsu Petrochemical Co., Ltd.

Idemitsu Kosan Company, Limited

Santoku Corporation

Tsuyoshi Ota

Hideo Funabashi

Toshio Isozaki

Masaru Nakagawa

Ryo Aburatani

Takanori Sadashima

Yutaka Minami

Minoru Senga

Takuji Okamoto

Yasushi Seta

Kiyokazu Katayama

Yutaka Obata

Yasuhiro Mogi

Yasunori Kadoi

Masami Kanamaru

Noriyuki Tani

Takashi Kashiwamura

Masato Kijima

Yoshikatsu Seino

Hiroyuki Higuchi

Takashi Sumitomo

Tomoaki Takebe

Takayoshi Kambara

Koji Kakigami

Tadanori Junke

Itaru Kuramoto

Shohjiroh Tanase

Takehiro Tsuda

Shigeo Matsuzaki

Masatoshi Toda

Tadatoshi Murota

Akira Tanaka

Masayuki Tsuruoka

Akinobu Sugahara

Youichi Matsuo

Masakatsu Kimura

Kazuo Sato

Shinichi Yukimasa

Masatoshi Kusatsu

Sueto Miyazaki

Tsutomu Akimaru

Junichi Amano

Sigeo Iwasaki

A method for producing a solid electrolyte, including: stirring a slurry including lithium sulfide and phosphorus sulfide in a hydrocarbon solvent in a reaction vessel, and circulating the slurry through a connecting pipe by a pump. The method is carried out in an apparatus including the reaction vessel and the connecting pipe connected to the pump and the reaction vessel.

Glass comprising solid electrolyte particles and lithium battery

A method for producing a solid electrolyte, comprising: grinding raw materials comprising lithium sulfide and phosphorus sulfide in a hydrocarbon solvent, optionally comprising stirring a slurry comprising the raw materials and the hydrocarbon solvent in a reaction vessel, and optionally, circulating the slurry through a connecting pipe, wherein the method is carried out in an apparatus comprising the grinder, the reaction vessel and the connecting pipe that connects the grinder and the reaction vessel.

A solid electrolyte including an alkali metal element, phosphorous, sulfur and halogen as constituent components.

Solid electrolyte

All-solid-state lithium ion battery and positive electrode mixture

Glass includes an aggregate of solid electrolyte particles including Li, P, and S, wherein when a Raman spectrum of the glass is repeatedly measured and a peak at 330 to 450 cmin each Raman spectrum is separated to waveforms of individual components, a standard deviation of a waveform area ratio of each component is less than 4.0.

The present invention provides an optical semiconductor sealing material comprising a radically polymerized polymer of a methacrylate ester having an alicyclic hydrocarbon group containing 7 or more carbon atoms, e.g. an adamantyl group, a norbornyl group, or a dicyclopentanyl group; and an optical semiconductor sealing material comprising a radically polymerized polymer of 50 to 97 mass % of the methacrylate ester and 3 to 50 mass % of acrylate ester having a hydroxyl group. The optical semiconductor sealing material of the present invention is highly transparent and stable to UV light and thus does not undergo yellowing. In addition, the material exhibits excellent compatibility between heat resistance and refractive index, does not undergo deformation or cracking during heating processes such as reflow soldering, and shows high processability. The material can be preferably used as a sealing material for light-emitting elements and light-receiving elements of optical semiconductor devices (semiconductor light-emitting devices).

Optical semiconductor sealing material

A method for producing a lithium ion conductive solid electrolyte including the step of bringing one or more compounds selected from phosphorous sulfide, germanium sulfide, silicon sulfide and boron sulfide into contact with lithium sulfide in a hydrocarbon-based solvent.

Method for producing lithium ion conductive solid electrolyte

The present invention provides a copolymer for syrup, characterized by being formed from (A) 1 to 60 mass % of at least one (meth)acrylate compound selected from among a (meth)acrylate-modified silicone oil, an alkyl(meth)acrylate, a monoalkylene glycol(meth)acrylate, and a polyalkylene glycol(meth)acrylate, and (B) 99 to 40 mass % of a (meth)acrylate compound having a C&#x2267;6 alicyclic hydrocarbon group bonded thereto via an ester bond; a (meth)acrylate composition containing a (meth)acrylate monomer and 1 to 60 mass % of the (meth)acrylate copolymer for syrup; and a cured product of the composition. The (meth)acrylate copolymer for syrup of the present invention has excellent solubility, particularly in a (meth)acrylate compound having an alicyclic ester substituent, and a (meth)acrylate resin composition containing the copolymer provides a stable cured product having high transparency and high resistance to UV rays and heat. Thus, the cured product is suitably used as a material for lenses, illumination devices, automobiles, displays, optical-semiconductors, etc.

(Meth)acrylate copolymer for syrup and resin composition thereof

A propylenic polymer according to the present invention or a composition thereof have an excellent melt flowability and contains a less amount of stickiness-causing components, and also has a low modulus and is pliable, and is capable of providing a transparent molded article, thus being useful as a substitute for a pliable vinyl chloride resin. In addition, a molded article made therefrom exhibits an excellent heat seal performance at a low temperature, and is excellent in terms of transparency and rigidity. Specifically, it has an isotactic pentad fraction (mmmm), which indicates a stereoregulariry, of 30 to 80%, a molecular weight distribution (Mw/Mn) of 3.5 or less and an intrinsic viscosity [&#x3b7;] of 0.8 to 5 dl/g.

Propylene polymer and composition containing the same, molded object and laminate comprising these, and processes for producing propylene polymer and composition containing the same

The invention relates to a magnesium compound effective in producing olefin polymers having an increased bulk density and a narrowed particle size distribution, not lowering the stereospecificity of the polymers produced and not lowering the polymerization activity in producing the polymers, to an olefin polymerization catalyst comprising the compound, and to a method for producing such olefin polymers. The olefin polymerization catalyst comprises (A) a solid catalyst component prepared by contacting a magnesium compound having a specific particle size distribution index (P), a titanium compound and an electron donor compound with each other, (B) an organometallic compound, and (C) an electron donor. The olefin polymerization method comprises polymerizing an olefin in the presence of the catalyst to give olefin polymers.

Magnesium compound, olefin polymerization catalyst, and method for producing olefin polymer

Catalyst for bulk polymerization, catalyst for vapor phase polymerization, method of polymerization using these, and olefin polymer obtained with these

Growing community of inventors

Ichihara, Japan

Tsuyoshi Ota