Idemitsu Kosan Company, Limited

Idemitsu Petrochemical Co., Ltd.

Haruhito Sato

Masahiko Kuramoto

Masami Watanabe

Hiroshi Hayashi

Shinji Tanaka

Takao Tamura

Hiroshi Ichikawa

Konomu Kurisaki

Takuji Okamoto

Akihiro Shishikura

Takashi Kashiwamura

Yasushi Shiraki

Sumihiro Oda

Masanori Tsuzuki

Fumio Okuda

Toshiya Abiko

Kiyohiko Yokota

Shintaro Suzuki

Hideto Kamimura

Junichi Matsumoto

Yoshio Ikeda

Satoshi Ikeuchi

Yuichi Fukunaga

Harumi Nakashima

Keiji Osada

The present invention provides a process for producing a saturated aliphatic hydrocarbon prepared using an &#x3b1;-olefin as a raw material and represented by the general formula (1), including the steps of: (I) producing a vinylidene olefin by dimerizing the &#x3b1;-olefin in the presence of a metallocene complex catalyst; (II) further dimerizing the vinylidene olefin in the presence of an acid catalyst; and (III) hydrogenating the obtained dimer. Further, there are provided a lubricant composition containing the saturated aliphatic hydrocarbon compound produced by the above process, a bearing oil consisting of the lubricant composition, and making use of the same, a bearing and gyral equipment. The saturated aliphatic hydrocarbon compounds produced by the process of the present invention have low-temperature fluidity, exhibiting low evaporativity, and excellent in thermal stability and oxidation stability. Thus, the saturated aliphatic hydrocarbon compounds are suitable for use as, for example, a base oil of lubricant composition for hydraulic pressure, turbine, working machine, bearing, gear, metal-working, etc. 

Process for producing saturated aliphatic hydrocarbon compound, and lubricant composition

A compound which satisfies requirements for the annealing property and the lubricating property simultaneously and a process for producing the compound are provided. The compound is an alkylacetal compound represented by the following general formula (1) or (2). In the general formulae, Rand Rrepresent hydrocarbon groups, Rto Rrepresent hydrogen atom or hydrocarbon groups, i and j represent integers satisfying the relation that the sum of the integers is 8 to 98, and k represents 0 or 1. 

Alkyl acetal compound, process for producing the same, and lubricating oil composition

Provided are a novel compound which improves the solubility of any one of various lubricating oil additives when used as base oil, in particular, a base oil component in a lubricating oil composition, and is capable of realizing low viscosity/low volatility characteristics that have not been achieved in PAO compositions to which conventional additives are added, and a method for producing the compound. Disclosed is 2-alkyl-4,4-dialkyl-1,3-dioxolane having a structure represented by the general formula (I) below: wherein Rto Reach independently represent an alkyl group having 1 to 30 carbon atoms. 

Dioxolane derivative and method for producing same

A polyurethane composition containing (A) a urethane compound obtained by reacting 100 parts by weight of a polyol with a polyisocyanate such that the NCO/OH equivalent weight ratio is greater than 0.5 but smaller than 15, and (B) a compound selected from a linear olefin compound having at least 6 carbon atoms, an oligomer of a linear olefin compound having at least 6 carbon atoms or an epoxy compound of an oligomer of a linear olefin compound having at least 6 carbon atoms, wherein the content of said compound (B) per 100 parts by weight of said polyol is greater than 5 parts by weight but smaller than 400 parts by weight. This composition is a composition with no suspicions that it contains an endocrine-disrupting chemical.

Polyurethane composition and molded article thereof

To provide a process capable of producing an aldehyde with a 2-position branched long-chain alkyl with high yield and high selectivity. The process for producing an aldehyde with a 2-position branched long-chain alkyl represented by the following general formula (2) contains: using a 2-position branched epoxide represented by the following general formula (1) as a raw material; and subjecting the epoxide to acid rearrangement reaction with a polyacid of a metallic oxoacid as a catalyst. In the formulae, n represents an integer of from 5 to 17. 

Process for producing aldehyde with 2-position branched long-chain alkyl

A carbonyl compound represented by the following formula [1], wherein X is hydrogen, a hydroxy group, an alkoxy group or a group derived from a polyol, and n, which is the same in each instance, is 4 to 30. Compositions comprising the compound, and method for making the compound.

Carbonyl compound containing long-chain branched alkyl group

A catalyst for polymerizing vinyl compounds or &#x3b1;-olefins according to the present invention includes (A) a transition metal complex, (B) a clay, clay mineral or ion-exchangeable layered compound, modified with at least one organic compound selected from the group consisting of quaternary ammonium salts, amine compounds, and adducts of amine and Br&#xf6;nsted acid, and (C) at least one aluminoxy compound. The transition metal in (A) is selected from Groups 4 to 10 or Groups 8 to 10 of the Periodic Table for catalysts for vinyl compounds or &#x3b1;-olefins, respectively. The aluminoxy compound is represented by the general Formula  wherein a plurality of R groups are each independently Chydrocarbon group and at least one of the R groups is a hydrocarbon group having 2 or more carbon atoms; and z is an integer of 2 or more for catalyst for vinyl compounds and 2 to 4 for catalysts for &#x3b1;-olefins.

Catalyst for vinyl compound polymerization and process for producing vinyl polymer

A transition metal compound of Groups to 10 of the Periodic Table, represented by the following formula (1):

Transition metal compound, olefin polymerization catalyst, and method of polymerizing olefin

Catalyst for the production of &agr;-olefin and &agr;-olefin production method

A catalyst which comprises a compound of a transition metal in Groups 8 to 10 of the Periodic Table having a nitrogenous tridentate ligand, a clay, clay minteral, or lamellar ion-exchanging compound, an organosilane compound, and organoaluminum compound, etc.; and a process for producing a polyolefin with the catalyst. The catalyst is highly active, does not adhere to reactor walls, and can give a polyolefin excellent in powder morphology. Consequently, a polyolefin (especially polyethylene) can be industrially advantageously produced.

Catalyst for olefin polymerization and process for producing olefin polymer with the catalyst

A catalyst which is able to express a high oligomerizing activity of ethylene and a method for the production of &agr;-olefin where ethylene is oligomerized using said catalyst are provided. The present invention relates to a catalyst for the production of &agr;-olefin obtained by contacting (a) clay, clay mineral or ion-exchange layer compound with (b-1) a transition metal complex of Groups 4 to 6 of the Periodic Table and also relates to a method for the production of &agr;-olefin by oligomerization of ethylene using said catalyst. The present invention further relates to a catalyst for the production of &agr;-olefin obtained by contacting (a) clay, clay mineral or ion-exchange layer compound with (b-2) a transition metal complex of Groups 8 to 10 of the Periodic Table and also relates to a method of the production of &agr;-olefin by oligomerization of ethylene using said catalyst.

Catalysts for &agr;-olefin production and processes for producing &agr;-olefin

The invention relates to high-activity catalysts for olefin polymerization, to efficient methods for producing them, and to efficient methods of using the catalysts for producing high-quality polyolefins. The olefin polymerization with the catalysts does not require a large amount of an organic aluminium compound, and the residual metal in the polyolefins produced is much reduced. The catalysts are characterized by containing a product as prepared by contacting any of clay, a clay mineral and an ion-exchanging layered compound, an organic silane compound, and water with each other, or by containing a silane compound-processed clay.

Catalysts for olefin polymer production

Catalysts for olefin polymerization comprising (a) a compound of a transition metal of Groups 8 to 10 of the Periodic Table, (b) clay, a clay mineral or an ion-exchanging layered compound, (c) a silane compound, and optionally (d) an organic aluminium compound and/or (e) an alkylating agent, and those comprising (a) a compound of a transition metal of Groups 8 to 10 of the Periodic Table, (b) clay, a clay mineral or an ion-exchanging layered compound, (d) an organic aluminium compounds and optionally (e) an alkylating agent have high activity, though not containing a large amount of aluminoxane. Using the catalysts, high-quality olefin polymers with good morphology are produced efficiently. The amount of the residual metal to remain in the polymers produced is small.

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Chiba, Japan

Haruhito Sato