Tokyo, Japan
Tokyo, Japan

Idemitsu Kosan Co.,Ltd. is a Japanese petroleum company. It owns and operates oil platforms, refineries and produces and sells petroleum, oils and petrochemical products.Idemitsu is the second largest petroleum refiner in Japan, after Nippon Oil. It was ranked as the 262nd largest company in the world by revenue in Fortune Global 500 . It is number 26 in petroleum refining. Only publicly traded since 2006, Idemitsu Kosan is not listed on the Nikkei 225 stock index or the Topix 100, but instead in Topix Mid 400. Wikipedia.


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(1) An elastic nonwoven fabric and a fiber product using the elastic nonwoven fabric, the elastic nonwoven fabric containing a crystalline resin composition containing low crystalline polypropylene and high crystalline polypropylene, the low crystalline polypropylene satisfying items (a) and (b) below, and a crystallization temperature (Tc) of the crystalline resin composition measured with a differential scanning calorimeter (DSC) being from 20 to 100 C.: (2) an elastic nonwoven fabric and a fiber product using the elastic nonwoven fabric, the elastic nonwoven fabric being produced by using a crystalline resin composition containing low crystalline polypropylene satisfying items (c) to (h) below, and a releasing agent: (c) [mmmm]=20 to 60% by mol; (d) [rrrr]/(1[mmmm])0.1; (e) [rmrm]>2.5% by mol; (f) [mm][rr]/[mr]^(2)2.0; (g) mass average molecular weight (Mw)=10,000 to 200,000; and (h) molecular weight distribution (Mw/Mn)<4; and (3) an elastic nonwoven fabric and a fiber product using the elastic nonwoven fabric, the elastic nonwoven fabric containing core/shell type composite fibers containing low crystalline polypropylene satisfying the items (c) to (h) have excellent elastic recovery property and pleasant texture without stickiness.


Patent
Idemitsu Kosan Co. | Date: 2017-02-08

The lubricating oil composition for an internal combustion engine of the invention contains (A) a lubricant base oil composed of a mineral oil and/or a synthetic oil, (B) a boron-containing alkenylsuccinimide and/or a boron-containing alkylsuccinimide in an amount of 0.001 to 0.1% by mass as a boron-equivalent amount based on the total amount of the composition, and (C) a poly(meth)acrylate in an amount of 0.1 to 30% by mass based on the total amount of the composition, and the poly(meth)acrylate has Mw of 100,000 to 700,000 and Mw/X of 30,000 or more, in which the weight-average molecular weight thereof is represented by Mw and the mean carbon number of the alkyl groups therein, as measured through ^(13)C-NMR, is represented by X.


Benzimidazolo[1,2-a]benzimidazole carrying benzimidazolo[1,2-a]benzimidazolylyl groups, carbazolyl groups, benzofurane groups or benzothiophene groups and their use in electronic devices, especially electroluminescent devices. When used as charge transport material, charge blocker material and/or host material in electroluminescent devices, the inventive compounds may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices and reduced driving voltage of electroluminescent devices.


Patent
Idemitsu Kosan Co. | Date: 2017-04-05

A urea grease of the invention is prepared by applying shear at a shear rate of 10^(2)s^(-1) or more to a mixture solution of an amine mixture containing an alicyclic monoamine and a chain aliphatic monoamine, and a diisocyanate compound to cause a reaction in the mixture, in which the urea grease has Peak High32-64s of 1.5 or less and Level High32-64s of 10 or less according to an FAG method.


Patent
Idemitsu Kosan Co. | Date: 2017-01-04

Provided is a polycarbonate resin, including, as a dihydric phenol serving as a raw material, a bisphenol A having an isopropenylphenol concentration of 150 ppm by mass or less within 1 hour after granulation and under an ambient temperature condition of from 10C to 50C.


Patent
Idemitsu Kosan Co. | Date: 2017-03-01

A thermoplastic elastomer composition includes a base oil and a styrene thermoplastic elastomer composition, in which the base oil has a kinematic viscosity at 40 degrees C in a range from 5 mm^(2)/s to 75 mm^(2)/s, a flash point of 150 degrees C or more, 3.0 or less of a maximum value of ultraviolet absorbance at a wavelength from 190 nm to 350 nm, and an aniline point of 120 degrees C or less, and 500 parts by mass or more of the base oil is contained relative to 100 parts by mass of the styrene thermoplastic elastomer.


Patent
Idemitsu Kosan Co. | Date: 2017-02-01

Provided are a hot-melt adhesive having high flowability in a molten state and exhibiting high adhesion strength in bonding PP nonwoven fabrics and further exhibiting high adhesion strength in bonding PE film-PP nonwoven fabric, and a base polymer for a hot-melt adhesive. The hot-melt adhesive contains (A) a propylene-based polymer satisfying the following (Ai) to (Aiv), and (B) an olefin-based copolymer satisfying the following (Bi) and (Bii); and the base polymer for a hot-melt adhesive consists of a mixture of (A) a propylene-based polymer satisfying the following (Ai) to (Aiv) and (B) an olefin-based copolymer satisfying the following (Bi) and (Bii) and satisfies the following (1) and (2). (Ai) the melting point is 120C or lower, (Aii) the Mw is 10,000 to 150,000, (Aiii) the Mw/Mn is 2.5 or less, (Aiv) the penetration is 8 or less, (Bi) the penetration is 15 or more, (Bii) the melting point is 90C or higher, (1) the tensile elastic modulus at 23C is 400 MPa or less, and (2) the semi-crystallization time at 23C is 20 minutes or less.


Patent
Idemitsu Kosan Co. | Date: 2017-01-11

Provided is a lubricating oil composition favorable for reducing friction in a sliding mechanism equipped with a piston ring and a liner, in a device having the sliding mechanism. The lubricating oil composition contains a lubricant base oil, (1) a polymethacrylate and/or an olefin copolymer having a mass-average molecular weight of 100,000 to 600,000, and (2) an ester-type ashless friction modifier and/or an amine-type ashless friction modifier, and has a shear viscosity at 150C of 2.3 mPa or more and less than 3.7 mPas.


Provided is a polyorganosiloxane, wherein a value obtained by integrating dw/dlog(M) from 2.5 log(M) 3.1 is 0 to 10% of a value obtained by integrating dw/dlog(M) over the entire range of log (M) in a differential molecular weight distribution curve, wherein the differential molecular weight distribution curve is determined by gel permeation chromatography using the polystyrene calibration curve, has an x-axis showing a logarithmic value log (M) of a molecular weight M and has a y-axis showing dw/dlog (M) obtained by differentiating a concentration fraction w with respect to the logarithmic value log(M) of the molecular weight


Patent
Idemitsu Kosan Co. | Date: 2017-04-19

Provided are an organic electroluminescence device that not only provides high efficiency but also has a long lifetime, and an aromatic amine derivative that realizes the device. The organic electroluminescence device includes an aromatic amine derivative, including at least one substituent A having dibenzofuran and at least one substituent B selected from groups each having dibenzofuran or carbazole, in a molecule thereof, in which the substituent A and the substituent B include groups different from each other, and the substituent A and the substituent B are bonded to the same nitrogen atom, or different nitrogen atoms, in the molecule. The molecules of the aromatic amine derivative hardly crystallize, which improves a yield in the production of the organic electroluminescence device. In the organic electroluminescence device, including an organic thin film layer formed of one or more layers including at least a light emitting layer, the organic thin film layer being interposed between a cathode and an anode, the aromatic amine derivative is contained in at least one layer, particularly a hole transport layer, in the organic thin film layer.

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