Moresco Corporation

Shingo Maruyama

Mayumi Hayashi

Yoshifumi Nakacho

Kohei Yamashita

Yuki Sato

Mitsuru Sugawara

Yoh Takekuma

Mao Nakagaki

An aspect of the present invention relates to a lubricant composition containing at least: (A) 50 to 80 mass % of silicone oil represented by formula (1) below, and having a mass-average molecular weight of 900 to 4000, a ratio (C/Si ratio) of carbon to silicon of 3.03 or higher in the structure, and a viscosity index (VI) of 300 or higher; (B) 10 to 49 mass % of hydrocarbon-based lubricant; and (C) 1 to 10 mass % of antioxidant.

Lubricating oil composition and lubricating agent using same

To provide an absorption promotor that is capable of improving the efficiency in absorption of a pharmaceutical drug and that is highly stable, an absorption promotor includes an oxa acid having a structure represented by the formula (1) below, 

Absorption promoter and use for same

Provided herein are various oxa acids having respective molecular weights and hydrophile-lipophile balances both different from each other. A compound having a structure represented by the following formula (1) 

Oxa acid compound

A compound of the formula (2) wherein Ris a hydrocarbon group having 12 or 14 carbon atoms which is mainly composed of any one of 1-methylundecyl, 1-ethyldecyl, 1-dodecyl, 1-methyltridecyl, 1-ethyldodecyl and 1-tetradecyl, and 30 to 40 mole % of the total benzylic carbons of Rbeing quaternary, Ris a branched hydrocarbon group having 16 to 20 carbon atoms, 42 to 100 mole % of the total benzylic carbons of each Rand Rbeing quaternary, m and n are each a real number of 1.0&#x2264;m&#x2264;2.0, 1.0&#x2264;n&#x2264;2.0 and 2.0&#x2264;m+n&#x2264;3.0.

Alkylated diphenyl ether compound and lubricating oil containing said compound

A compound of the present invention is represented by the general formula (1) and has a 40&#xb0; C. kinetic viscosity (v) that satisfies 4 mm/s&#x2264;v&#x2264;30 mm/s,CH&#x2014;(O&#x2014;CHCH)&#x2014;O&#x2014;(CH)&#x2014;(C&#x2550;O)&#x2014;O&#x2014;CH&#x2003;&#x2003;(1)

Ether-containing monoester compound and use thereof

The present invention provides a lubricant composition having high moisture resistance and having physical properties including low viscosity, low evaporability, low-temperature fluidity, and a high viscosity index. The lubricant composition contains (i) an aliphatic ether compound as a base oil and (ii) an antioxidant made from at least alkylated phenylnaphthylamine and phosphite ester, wherein a sum of individual amounts of the alkylated phenylnaphthylamine and the phosphite ester is a predetermined amount, and the alkylated phenylnaphthylamine and the phosphite ester are used in a predetermined ratio.

Lubricant composition, use thereof and aliphatic ether compound

A compound of the formula (2) wherein Rand Rare the same or different and are a branched hydrocarbon group having 10 to 26 carbon atoms, 42 to 100 mole % of the benzylic carbons of each Rand Rare quaternary, m and n are each a real number of at least zero, and 2.0&#x2266;m+n&#x2266;3.0.

A bearing lubricant of the present invention contains a compound represented by the following general formula:CH&#x2014;R&#x2014;O&#x2014;(C&#x2550;O)&#x2014;O&#x2014;R&#x2014;CH

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Kobe, Japan

Shingo Maruyama