Global Patent Index - EP 0719852 B1

EP 0719852 B1 20051123 - Use of a lubricant oil composition

Title (en)

Use of a lubricant oil composition

Title (de)

Verwendung einer Schmierölzusammensetzung

Title (fr)

Utilisation d'une composition d'huile lubrifiante

Publication

EP 0719852 B1 20051123 (EN)

Application

EP 95309479 A 19951222

Priority

JP 33960194 A 19941228

Abstract (en)

[origin: EP0719852A2] A lubricant oil composition comprising a minor portion of calcium sulfonate(s), barium sulfonate(s), or mixture thereof being neutral or having the total base number of 100 mg KOG/g or less, and straight chain univalent fatty acid(s) having 8 to 18 carbon atoms and a major portion of a base oil of mineral oil series and/or synthetic oil series, said base oil having a kinematic viscosity of 10 to 500 mm<2>/s at 40 DEG C. The lubricant oil composition of the present invention exerts excellent separation properties from a cutting fluid prepared by diluting a water-soluble cutting fluid. Therefore, the composition so readily separates and floats in a reservoir tank for the cutting fluid that the composition can be removed simply by means of an oil skimmer and the like. Thus, the properties of the water-soluble cutting fluid can be maintained for a long term, with no occurrence of poor work environment due to rot and so on.

IPC 1-7

C10M 141/08; C10M 163/00; C10M 169/04

IPC 8 full level

C10M 141/08 (2006.01); C10M 163/00 (2006.01); C10M 169/04 (2006.01); C10M 173/00 (2006.01); C10N 10/04 (2006.01); C10N 20/02 (2006.01); C10N 30/00 (2006.01); C10N 40/22 (2006.01)

CPC (source: EP)

C10M 101/02 (2013.01); C10M 129/40 (2013.01); C10M 135/10 (2013.01); C10M 141/08 (2013.01); C10M 159/24 (2013.01); C10M 163/00 (2013.01); C10M 169/04 (2013.01); C10M 169/045 (2013.01); C10M 173/00 (2013.01); C10M 2201/02 (2013.01); C10M 2203/06 (2013.01); C10M 2203/10 (2013.01); C10M 2203/1006 (2013.01); C10M 2203/102 (2013.01); C10M 2203/1025 (2013.01); C10M 2203/1045 (2013.01); C10M 2203/1065 (2013.01); C10M 2203/1085 (2013.01); C10M 2205/026 (2013.01); C10M 2207/125 (2013.01); C10M 2207/126 (2013.01); C10M 2207/129 (2013.01); C10M 2207/281 (2013.01); C10M 2207/282 (2013.01); C10M 2207/283 (2013.01); C10M 2207/286 (2013.01); C10M 2207/34 (2013.01); C10M 2219/044 (2013.01); C10M 2219/046 (2013.01); C10M 2223/04 (2013.01); C10M 2223/042 (2013.01); C10N 2040/22 (2013.01); C10N 2050/01 (2020.05)

Citation (examination)

US 4770798 A 19880913 - BAILLEUX JEAN M A [BE], et al

Designated contracting state (EPC)

BE DE ES FR GB IT NL

DOCDB simple family (publication)

EP 0719852 A2 19960703; EP 0719852 A3 19960731; EP 0719852 B1 20051123; CA 2165868 A1 19960629; CA 2165868 C 20061031; DE 69534628 D1 20051229; DE 69534628 T2 20060810; ES 2253743 T3 20060601; JP H08183980 A 19960716; SG 50391 A1 19980720

DOCDB simple family (application)

EP 95309479 A 19951222; CA 2165868 A 19951221; DE 69534628 T 19951222; ES 95309479 T 19951222; JP 33960194 A 19941228; SG 1995002383 A 19951228