US 9,464,256 B2Granted

Methods for producing oil formulations by means of certain carbodiimides

AssigneeRhein Chemie Rheinau GmbH

InventorsWilhelm Laufer, Armin Eckert, Siegfried Kuenzel

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Abstract

The present invention relates to a novel method for preparing stabilized oil formulations by means of certain carbodiimides.

Claims11

Dependent claims

A method for preparing stabilized oil formulations, the method comprising combining bis-o-tolylcarbodiimide with at least one oil at a temperature of 10-30° C.

Dependencies are inferred from the claim text.

Facts

Application: 14/888,950Filed 6 May 2014
Priority: EP 131667627 May 2013
Published: US 2016/0083673 A124 Mar 2016
Granted: 11 Oct 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

C11B 5/005
Containing nitrogen: amines or imines
C07C 67/62
Separation; Purification; Stabilisation; Use of additives: use of additives, e.g. for stabilisation
C10M 133/22
Having a carbon chain of less than 30 atoms: containing a carbon-to-nitrogen double bond, e.g. guanidines, hydrazones, semicarbazones
C10M 169/04
Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials,…:…

Family

US 2016/0083673 A1Pre-grant publication · published 24 Mar 2016
US 9,464,256 B2This patent

From the US filing history. Foreign family members aren’t listed.

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