Polymeric-inorganic nanoparticle compositions, manufacturing process thereof and their use as lubricant additives

US11180712B2 · kind B2 · utility

Assignee

• Evonik Operations GmbH · DE

Inventors

• Stephan Wieber · Karlsruhe, DE
• Sofia Sirak · Frankfurt, DE
• Daniel Neß · Hanau, DE
• Roland Wilkens · Gernsheim, DE
• Rebecca Jüstel · Frankfurt am Main, DE
• Gunter Schmitt · Darmstadt, DE
• Michael Hagemann · Shanghai, CN

Key dates

• Filing date: Jan 22, 2019
• Grant date: Nov 23, 2021
• Expiry date: Jan 22, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2040/04
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to polymeric-inorganic nanoparticle compositions and preparation processes thereof. The invention also relates to an additive and lubricant composition comprising these polymeric-inorganic nanoparticle compositions, as well as to the use of these polymeric-inorganic nanoparticle compositions in an oil lubricant formulation to improve tribological performance, in particular to improve anti-friction performance on metal parts.