Thermoassociative additive compositions, the association of which is controlled, and lubricating compositions containing same

US11319503B2 · kind B2 · utility

Assignees

• TOTAL MARKETING SERVICES · FR
• CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE · FR
• ECOLE SUPERIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRIELLES DE LA VILLE DE PARIS · FR

Inventors

• Thibault Derouineau · La Fontaine du Bout, FR
• Fanny Briand · Val-de-Reuil, FR
• Gregory Descroix · Brindas, FR
• Renaud Nicolay · Verrières-le-Buisson, FR

Key dates

• Filing date: Nov 21, 2017
• Grant date: May 3, 2022
• Expiry date: Mar 28, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2070/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention concerns additive compositions obtained by mixing at least two thermoassociative and exchangeable compounds and at least one boronic ester compound that enables the association of these two copolymers to be controlled; a lubricating composition obtained by mixing at least one lubricating base oil, at least two thermoassociative and exchangeable compounds, and at least one boronic ester compound that enables the association of these two copolymers to be controlled; a method for adjusting the viscosity of a lubricating composition obtained by mixing at least one lubricating base oil and at least two thermoassociative and exchangeable compounds; and the use of a boronic ester compound to adjust the viscosity of a lubricating composition.