Transforming Methyl Levulinate into Biosurfactants and Biolubricants by Chemoselective Reductive Etherification with Fatty Alcohols
作者:Andrea Garcia‐Ortiz、Karen S. Arias、Maria J. Climent、Avelino Corma、Sara Iborra
DOI:10.1002/cssc.201903496
日期:2020.2.21
properties were obtained by conversion of methyl levulinate into methyl 4-alkoxypentanoates through reductive etherification with aliphatic alcohols. Among different bifunctional acid/metal catalysts best results were obtained with Pd on carbon bearing acid sites. The reaction occurred through the formation of an enol ether intermediate followed by hydrogenation. Pd in high-density planes was the active hydrogenation
LUBRICATING OIL COMPOSITION FOR REFRIGERATOR, AND REFRIGERATOR
申请人:Idemitsu Kosan Co., Ltd
公开号:EP3216851A1
公开(公告)日:2017-09-13
The lubricating oil composition for a refrigerator according to the present invention is a lubricating oil composition for a refrigerator containing a base oil containing a low-viscosity base oil component having added thereto a polyoxyalkylene glycol compound having a kinetic viscosity at 100°C that is higher than the low-viscosity base oil component, and the base oil has a kinetic viscosity at 100°C of 2.4 to 25 mm2/s and a ratio (Mw/Mn) of a weight average molecular weight (Mw) and a number average molecular weight (Mn) of 1.3 to 13.
METHOD FOR PRODUCING POLYALKYLENE GLYCOL, VISCOSITY INDEX IMPROVER, LUBRICATING OIL COMPOSITION, AND METHOD FOR PRODUCING LUBRICATING OIL COMPOSITION
申请人:Idemitsu Kosan Co., Ltd
公开号:EP3216816A1
公开(公告)日:2017-09-13
The method for producing a polyalkylene glycol of the present invention is a method for producing a polyalkylene glycol, including performing a polymerization reaction of an alkylene oxide with a composite metal catalyst, the polymerization reaction being performed in the presence of an organic solvent in an amount of 10 to 90 mass% based on the polyalkylene glycol to be produced.
A lubricating oil composition according to one embodiment of the present invention contains an oxygen-containing synthetic base oil having an oxygen content (A) of from 15 to 40 mass% and a kinetic viscosity at 100°C of from 0.5 to 50 mm2/s, and a viscosity index improver that is an oxygen-containing compound having an oxygen content (B) of from 15 to 40 mass% and a kinetic viscosity at 100°C of 11,000 mm2/s or more, a mass ratio of the oxygen-containing synthetic base oil and the viscosity index improver being from 99.5:0.5 to 75:25, and a ratio (A/B) of the oxygen content (A) of the oxygen-containing synthetic base oil to the oxygen content (B) of the viscosity index improver being in a range of from 0.5 to 2.
Lubricating oil composition for refrigerator, and refrigerator
申请人:IDEMITSU KOSAN CO., LTD.
公开号:US10450531B2
公开(公告)日:2019-10-22
The lubricating oil composition for a refrigerator according to the present invention is a lubricating oil composition for a refrigerator containing a base oil containing a low-viscosity base oil component having added thereto a polyoxyalkylene glycol compound having a kinetic viscosity at 100° C. that is higher than the low-viscosity base oil component, and the base oil has a kinetic viscosity at 100° C. of 2.4 to 25 mm2/s and a ratio (Mw/Mn) of a weight average molecular weight (Mw) and a number average molecular weight (Mn) of 1.3 to 13.