Kao Corporation

Nippon Oil Corporation

Jx Nippon Oil Energy Corporation

Jiro Hashimoto

Shogo Nomoto

Masahiro Fukuda

Ken Sawada

Yuji Shimomura

Kazuo Tagawa

Toshiya Hagihara

Katsuya Takigawa

Hiroki Sawada

Makoto Kubo

Hitoshi Funada

Kazuhiko Nishimoto

Masataka Negishi

Kazuo Kita

Haruya Mino

Masanori Nozawa

Toshitsugu Maeda

Takashi Ohtani

Junzo Ito

The base oil for the refrigerating machine oil used with a carbon dioxide refrigerant of the invention is characterized by comprising a complete ester of a fatty acid in which the proportion of C14-C22 branched fatty acid is 40-100% by mole and a polyhydric alcohol. The refrigerating machine oil used with a carbon dioxide refrigerant according to the invention is characterized by comprising the base oil for the refrigerating machine oil used with a carbon dioxide refrigerant according to the invention. The base oil for the refrigerating machine oil used with a carbon dioxide refrigerant and the refrigerating machine oil used with a carbon dioxide refrigerant according to the invention, when used together with a carbon dioxide refrigerant, exhibit excellent stability and electrical insulating properties, and have suitable compatibility with refrigerants while allowing adequate lubricity to be exhibited without increasing the viscosity of the base oil.

Refrigerating machine oil for carbon dioxide refrigerant

The invention provides a process for producing a monoglyceride-containing composition by reacting glycerin with at least one kind of acyl-containing compound selected from fatty acid and glycerin ester, the reaction being conducted with a catalyst containing at least one metal selected from iron, cobalt and manganese in an amount of 0.1 to 60 ppm in terms of metal (weight ratio to the total weight of glycerin and the acyl-containing compound), as well as a process for producing a monoglyceride-containing composition by reacting glycerin with at least one kind of acyl-containing compound selected from fatty acid and glycerin ester, including a step of maintaining the amount of water at 500 to 5000 ppm in the reaction system after the degree of conversion in the reaction of glycerin with fatty acid reaches 90% or more based on the fatty acid, or during the ester exchange reaction of glycerin with glycerin ester.

Process for producing a monoglyceride-containing composition

Cutting oil composition

A gas oil composition having improved lubricity which can reduce wear of metallic surfaces which the composition contacts comprises a gas oil having a low sulfur content, and a glycerol/monofatty acid ester and a glycerol/difatty acid ester which have a specific fatty acid residue composition

Gas oil compositions and gas oil additives

An additive for lubricating oils for diesel engines, comprising one or more kinds of amino alcohols which have one or more amino groups and one or more hydroxyl groups in a molecule and possess a function of dispersing water-containing calcium sulfate in oil, the hydroxyl groups being bound to the carbon atoms at the .beta.-positions to the amino groups; and a lubricating oil composition for diesel engines, which comprises the additives in an amount of from 0.1 to 10% by weight.

Additive for lubricating oils for diesel engines and lubricating oil

A gasoline composition comprising (a) gasoline, (b) a deposit inhibitor or a detergent containing a basic nitrogen atom, (c) a carrier oil, and (d) one or more compounds selected from the group consisting of an ester of a fatty acid and an alkylene oxide addition compound to bisphenol, a compound obtained by the ester exchange reaction of an alcohol and a triglyceride-type fat or oil, an aliphatic or aromatic carboxylic acid, a metal salt of an aliphatic or aromatic carboxylic acid, an ester of an aliphatic or aromatic carboxylic acid and an alcohol, and an ester of boric acid. The composition has superior heat resistance and is excellent in removing deposits in the fuel intake systems and in keeping the systems clean.

Gasoline composition

An additive for fuel oil comprises a compound comprising (a) an alkyl group having 9 to 37 carbon atoms and containing a branched alkyl having 3 to 18 carbon atoms and (b) an amine group having at least one polyoxyalkylene having 2 to 4 carbon atoms or an amineoxide having at least one polyoxyalkylene having 2 to 4 carbon atoms. This additive is effective for cleaning the injection nozzle of coking.

Guerbet branched alkoxylated amine detergent additives

A fuel oil composition comprises fuel oil and 0.1 to 50,000 ppm of an additive compound having the formula (I) in which R is a hydrocarbyl radical having 10 to 50 carbon atoms, A is an alkylene group having 2 to 6 carbon atoms, m is an integer of 10 to 50 and n is an integer of 1 to 3. It is improved in cleaning property.

Fuel oil additive and fuel oil additive composition

Growing community of inventors

Wakayama, Japan

Jiro Hashimoto