Patent · US Active

Method for dewaxing mineral oil compositions

US9540575B2 · kind B2 · utility

0Cited by

6References

11Claims

0Family size

Assignee

Evonik Oil Additives GmbH · DE

Inventors

Rene Koschabek · Weinheim, DE
Torsten Stoehr · Frankfurt, DE
Markus Weber · Langenfeld, DE
Andre Unglert · Frankfurt, DE
Wolfgang Tschepat · Darmstadt, DE

Key dates

Filing date	Feb 6, 2012
Grant date	Jan 10, 2017
Priority date	—
Expiry date	Oct 6, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10N2070/00
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a lubricant composition for a process for reducing the paraffin content of mineral oil compositions, by providing a mineral oil composition with a dewaxing aid, cooling to form a paraffin precipitate and at least partly removing the paraffin precipitate formed. The dewaxing aid used is a copolymer mixture comprising at least three copolymers, the copolymers differing in the composition of the repeat units.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.