Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cognis Corp
Original Assignee
Nicholas E. Schnur
Henkel Corporation
Cognis Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nicholas E. Schnur, Henkel Corporation, Cognis CorporationfiledCriticalNicholas E. Schnur
Priority claimed from CA002191108Aexternal-prioritypatent/CA2191108C/en
Publication of CA2274379A1publicationCriticalpatent/CA2274379A1/en
Application grantedgrantedCritical
Publication of CA2274379CpublicationCriticalpatent/CA2274379C/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Lubricants
(AREA)
Abstract
The electrical resistivity of hindered polyol ester lubricants can be raised to very high levels by treating the lubricants with activated alumina, preferably after the acid values of the lubricants treated have already been reduced to low levels by conventional refining with alkali or other acid scavengers.
CA002274379A1994-05-231995-05-01Method for increasing the electrical resistivity of hindered polyol ester refrigerant lubricants
Expired - Fee RelatedCA2274379C
(en)