Patent · US Active

Friction-improved polymers for DLC-coated surfaces

US9434903B2 · kind B2 · utility

1Cited by

1References

17Claims

0Family size

Assignee

Evonik Oil Additives GmbH · DE

Inventors

Boris Eisenberg · Heppenheim, DE
Torsten Stoehr · Frankfurt, DE

Key dates

Filing date	May 10, 2012
Grant date	Sep 6, 2016
Priority date	—
Expiry date	May 10, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10N2050/025
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a component part comprising at least two components movable with respect to one another, between the surfaces of which is provided a film formed by a lubricant oil composition, the surface of at least one of the movable components being formed at least partly by a diamond-like-carbon layer (DLC layer) and the lubricant oil composition comprising at least one polymer comprising repeat units derived from amine derivatives of at least one polar ethylenically unsaturated monomer.

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