EP 3371289 A1 20180912 - LUBRICATING OIL COMPOSITION
Title (en)
LUBRICATING OIL COMPOSITION
Title (de)
SCHMIERÖLZUSAMMENSETZUNG
Title (fr)
COMPOSITION D'HUILE LUBRIFIANTE
Publication
Application
Priority
- JP 2015216297 A 20151104
- EP 2016076604 W 20161103
Abstract (en)
[origin: WO2017076999A1] An object of the present invention is to obtain a lubricating oil for machine tools, which has good lubricating properties and abrasion resistance and also exhibits a high flash point and a low pour point. A lubricating oil composition comprises, as a base oil, a base oil which includes an oil containing 20 mass% to 49 mass% of n-paraffin components and 51 mass% to 80 mass% of i-paraffin components at a quantity of 90 mass% or more of the total quantity of the base oil and which has a kinematic viscosity at 40°C of 1 to 5 mm2/s. By blending a small quantity of β-dithiophosphorylated propionic acid and/or an acidic phosphoric acid ester in this base oil, a lubricating oil composition suitable for use for a main shaft of a machine tool is obtained. The lubricating oil composition for a main shaft of a machine tool has a flash point of 100°C or more, a pour point of -10°C or less, and a Shell four-ball wear mark diameter of 0.7 mm or less.
IPC 8 full level
C10M 169/04 (2006.01)
CPC (source: EP US)
C10M 169/04 (2013.01 - EP US); C10M 2203/022 (2013.01 - EP US); C10M 2203/1006 (2013.01 - EP US); C10M 2203/1025 (2013.01 - EP US); C10M 2203/1065 (2013.01 - EP US); C10M 2205/163 (2013.01 - US); C10M 2205/173 (2013.01 - EP US); C10M 2209/103 (2013.01 - EP US); C10M 2223/041 (2013.01 - EP US); C10M 2223/047 (2013.01 - EP US); C10M 2223/049 (2013.01 - EP US); C10N 2020/02 (2013.01 - EP US); C10N 2020/071 (2020.05 - EP US); C10N 2030/02 (2013.01 - EP US); C10N 2030/06 (2013.01 - EP US); C10N 2040/06 (2013.01 - US)
Citation (search report)
See references of WO 2017076999A1
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)
WO 2017076999 A1 20170511; BR 112018009126 A2 20181106; BR 112018009126 A8 20190226; CN 108350386 A 20180731; EP 3371289 A1 20180912; JP 2017088651 A 20170525; JP 6666691 B2 20200318; RU 2018120363 A 20191205; US 2018327688 A1 20181115
DOCDB simple family (application)
EP 2016076604 W 20161103; BR 112018009126 A 20161103; CN 201680064210 A 20161103; EP 16790387 A 20161103; JP 2015216297 A 20151104; RU 2018120363 A 20161103; US 201615772643 A 20161103