Asahi Denka Kogyo K.k.

Adeka Corporation

Japan Energy Corporation

Kimiyoshi Namiwa

Tamiji Kamakura

Noriyoshi Tanaka

Yukio Tatsumi

Masato Namiki

Takashi Kaimai

Hitoshi Takahashi

Yasuhiro Tsushima

Yoshikazu Shoji

Goro Yamamoto

Hideo Yokobori

Hidekatsu Katoh

Masaki Furuya

Takuro Handa

Ayako Saneyoshi

Shigeru Katsumata

Yuji Baba

Yuzi Baba

A less malodorous alkanediol composition, a process for producing the alkanediol composition efficiently, and a cosmetic containing the alkanediol composition are provided. An alkanediol composition contains 0.005 parts by mass or less of ester compound per 100 parts by mass of alkanediol compound having four or more carbon atoms. An alkanediol composition contains 0.2 parts by mass or less of dioxane compound per 100 parts by mass of alkanediol compound having four or more carbon atoms. Furthermore, an ether-containing dihydric alcohol is preferably 0.3 parts by mass or less per 100 parts by mass of alkanediol compound.

Alkanediol composition, process for producing the same, and cosmetic

A lubricant for a refrigerator using ammonia as the refrigerant, which contains an additive selected from antioxidant, anti-wear additive and metal deactivator, and the polyether compound represented by the following general formula (1) or (2):X{&#x2014;O&#x2014;(AO)&#x2014;H}&#x2003;&#x2003;(1)X{&#x2014;O&#x2014;(AO)&#x2014;(AO)&#x2014;H}&#x2003;&#x2003;(2)

Lubricant for refrigerating machine employing ammonia refrigerant

Lubricated refrigerant composition containing fluorocarbon-type refrigerant, synthetic oil and molybdenumoxysulfide derivatives

Refrigerant incorporating a polyoxyalkylene glycol monomethylether

The objective of the present invention resides in providing a lubricant for refrigerators that reacts rapidly with free acids and contains a stabilizer that has good compatibility with a chlorine-free Flon-thpe coolant such as Flon 134a and the like whose molecules do not contain chlorine. The lubricant for refrigerators employing a chlorine-free Flon-type coolant in accordance with the present invention 100 parts by weight of a synthetic oil and is compounded with 0.05 to 15 parts by weight of an alicyclic epoxy compound having one or more functional groups represented by the following formula: ##STR1## (wherein R.sub.1 and R.sub.2 independently represent a hydrogen or methyl group, and may be the same or different).

Lubricated refrigerant composition containing alicyclic epoxy compounds

The present invention relates to a lubricated refrigerant for use in refrigerators employing hydrofluorocarbon coolants such as R 134a, R 32, R 125 and the like. The lubricated refrigerant contains fluorocarbon coolant, synthetic oil and a carbodiimide compound represented by the following general formula. R.sub.1 --N.dbd.C.dbd.N--R.sub.2, wherein R.sub.1 and R.sub.2 represent hydrogen atoms or hydrocarbly groups or nitrogen and/or oxygen containing hydrocarbly groups, and R.sub.1 and R.sub.2 may be the same or different groups. The refrigerant composition according to the present invention preferably contains said hydrofluorocarbon coolant and said lubricant at a given blending ratio.

Refrigerant composition containing carbodiimide

A lubricant composition for refrigerators using Flon 134a comprises at least 80 percent by weight of a specific type of polyoxethylene glycol dialkyl ether having a kinematic viscosity of 6 to 500 cSt at 40 degree centigrade.

Lubricant for refrigerant

Disclosed is a novel sulfidoxymolybdenum dialkylphosphorodithioate represented by the following general formula (I): ##STR1## wherein R stands for a secondary alkyl group having 4 to 30 carbon atoms and four R's may be the same or different, and X stands for O or S and four X's may be the same or different. This compound is very valuable as the lubricant additive.

Sulfidoxymolybdenum dialkylphosphorodithioate

Growing community of inventors

Tokyo, Japan

Kimiyoshi Namiwa