US 8,507,423 B2 · Synthesis of biolubricant esters from unsaturated fatty acid derivatives

Abstract

The present invention is generally directed to diester-based lubricant compositions comprising one or more isomeric mixtures of diester species wherein the kinematic viscosity of the composition at temperature of 100 C is at least 3 mm2/s The present invention is also directed to methods of making these and other similar lubricant compositions. In some embodiments, the methods for making such diester-based lubricants utilize a biomass precursor material from which mono-unsaturated free lipid species can be provided or otherwise generated, wherein such mono-unsaturated free lipid species are converted to isomeric diol species en route to the synthesis of diester species for use as/in the diester-based lubricant compositions.

Claims11

Dependent claims

A lubricant composition wherein the kinematic viscosity of the composition at temperature of 100° C. is at least 3 mm2/s, comprising at least one isomeric mixture of diester species comprising the following isomerically-related diester structures:

wherein R1, R2, R3and R4 are the same or independently selected from C1 to C20 hydrocarbon groups, and wherein n and m are the same or independently selected from the group of integers 2 to 20.

Dependencies are inferred from the claim text.

Facts

Application

13/553,658Filed 19 Jul 2012 · division

Priority

7 Jul 2009

Published

US 2013/0017983 A117 Jan 2013

Granted

13 Aug 2013

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

C10M 105/38
Esters: of polyhydroxy compounds
C07C 29/132
Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring: by reduction of an…
C07C 29/147
Of >C=O containing groups, e.g. —COOH: of carboxylic acids or derivatives thereof
C07C 67/08
Preparation of carboxylic acid esters: by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds

Synthesis of biolubricant esters from unsaturated fatty acid derivatives

Life of this patent

Synthesis of biolubricant esters from unsaturated fatty acid derivatives

Life of this patent

Abstract

Claims11