EP 4159832 A1 20230405 - LUBRICATING OIL COMPOSITIONS

Title (en)

LUBRICATING OIL COMPOSITIONS

Title (de)

SCHMIERÖLZUSAMMENSETZUNGEN

Title (fr)

COMPOSITIONS D'HUILE DE LUBRIFICATION

Publication

EP 4159832 A1 20230405 (EN)

Application

EP 21200776 A 20211004

Priority

EP 21200776 A 20211004

Abstract (en)

A lubricating oil composition comprises at least 50 percent by mass, based on the mass of the composition of an oil of lubricating viscosity and 0.01 to 25 percent by mass, based on the mass of the composition, of a compound having structure (I):wherein R<sup>1</sup> and R<sup>2</sup> are the same or different and are linear or branched alkyl groups having from 2 to 10, preferably from 2 to 8 carbon atoms. The compositions provide wear protection between sliding metal contacts, such as may be found in engines.

IPC 8 full level

C10M 129/24 (2006.01)

CPC (source: EP)

C10M 129/24 (2013.01); C10M 2207/085 (2013.01); C10N 2030/06 (2013.01)

C-Set (source: EP)

C10M 2207/085 + C10N 2010/06

Citation (applicant)

US 2795549 A 19570611 - ABBOTT ANDREW D, et al
US 3202678 A 19650824 - STUART FRANK A, et al
US 3154560 A 19641027 - CARL OSUCH
US 3172892 A 19650309
US 3024195 A 19620306 - DRUMMOND ALAN Y, et al
US 3087936 A 19630430 - LE SUER WILLIAM M
US 3254025 A 19660531 - LE SUER WILLIAM M
US 4867890 A 19890919 - COLCLOUGH TERENCE [GB], et al
US 3113986 A 19631210 - BRESLOW DAVID S, et al
US 3700633 A 19721024 - WALD MILTON M, et al
US 3634595 A 19720111 - PASQUALI GIORGIO
US 3670054 A 19720613 - MARE HAROLD E DE LA, et al
US RE27145 E 19710622
"American Petroleum Institute (API) publication", December 1996, INDUSTRY SERVICES DEPARTMENT, article "Engine Oil Licensing and Certification System"

Citation (search report)

[AD] US 2795549 A 19570611 - ABBOTT ANDREW D, et al
[A] US 5736491 A 19980407 - PATEL JITENDRA A [US], et al
[A] GRUHN NADINE E. ET AL: "Photoelectron Spectroscopy of Bis(2,4-Pentanedione)-Oxovanadium(IV) [VO(acac) 2 ] and Derivatives:? Substituent Effects on the 2,4-Pentanedione Donor", INORGANIC CHEMISTRY, vol. 41, no. 22, 1 November 2002 (2002-11-01), Easton , US, pages 5907 - 5911, XP055896119, ISSN: 0020-1669, Retrieved from the Internet <URL:https://pubs.acs.org/doi/pdf/10.1021/ic0256056> DOI: 10.1021/ic0256056
[A] PREININGER ONDREJ ET AL: "Oxovanadium(IV) complexes bearing substituted pentane-2,4-dionate ligands: Synthesis, structure and drying activity in solvent-borne alkyd paints", INORGANICA CHIMICA ACTA, vol. 462, 1 June 2017 (2017-06-01), NL, pages 16 - 22, XP055896108, ISSN: 0020-1693, DOI: 10.1016/j.ica.2017.03.008

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4159832 A1 20230405; EP 4159832 B1 20231122

DOCDB simple family (application)

EP 21200776 A 20211004