EP 3766949 A1 20210120 - LUBRICATING OIL COMPOSITION
Title (en)
LUBRICATING OIL COMPOSITION
Title (de)
SCHMIERÖLZUSAMMENSETZUNG
Title (fr)
COMPOSITION D'HUILE LUBRIFIANTE
Publication
Application
Priority
- JP 2018044412 A 20180312
- JP 2019010032 W 20190312
Abstract (en)
The present invention relates to a lubricating oil composition containing a base oil (A) and a viscosity index improver (B) such that in X-ray small-angle scattering spectra obtained through measurement at 40°C and 100°C, a ratio [Δ|α(40) |/Δ|α(100) |] between Δ|α(40) | and Δ|α(100) each of which is an absolute value of a slope of a straight line calculated in a range of the scattering vector q as the x axis of from 0.1 nm<sup>-1</sup> to 1 nm<sup>-1</sup> by the least-squares method, is 1.5 or more.
IPC 8 full level
C10M 169/04 (2006.01); C10M 101/02 (2006.01); C10M 143/12 (2006.01); C10N 20/00 (2006.01); C10N 20/04 (2006.01); C10N 30/00 (2006.01); C10N 30/08 (2006.01); C10N 40/25 (2006.01)
CPC (source: EP US)
C10M 101/02 (2013.01 - US); C10M 143/14 (2013.01 - US); C10M 169/041 (2013.01 - US); C10M 171/00 (2013.01 - EP); C10M 2203/003 (2013.01 - US); C10M 2203/1025 (2013.01 - EP); C10M 2205/024 (2013.01 - EP); C10M 2205/06 (2013.01 - EP); C10M 2205/08 (2013.01 - US); C10M 2207/026 (2013.01 - EP); C10M 2207/262 (2013.01 - EP); C10M 2209/084 (2013.01 - EP); C10M 2215/064 (2013.01 - EP); C10M 2215/223 (2013.01 - EP); C10M 2215/28 (2013.01 - EP); C10M 2219/068 (2013.01 - EP); C10M 2223/045 (2013.01 - EP); C10M 2229/02 (2013.01 - EP); C10N 2020/04 (2013.01 - EP); C10N 2020/071 (2020.05 - US); C10N 2030/78 (2020.05 - EP); C10N 2040/25 (2013.01 - EP US)
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
DOCDB simple family (publication)
EP 3766949 A1 20210120; EP 3766949 A4 20211201; CN 111801407 A 20201020; JP 7341979 B2 20230911; JP WO2019176944 A1 20210225; US 2021047582 A1 20210218; WO 2019176944 A1 20190919
DOCDB simple family (application)
EP 19768240 A 20190312; CN 201980018126 A 20190312; JP 2019010032 W 20190312; JP 2020506562 A 20190312; US 201916978925 A 20190312