Global Patent Index - EP 2497818 A1

EP 2497818 A1 20120912 - USE OF A MARINE LUBRICATING OIL COMPOSITE ADDITIVE

Title (en)

USE OF A MARINE LUBRICATING OIL COMPOSITE ADDITIVE

Title (de)

VERWENDUNG VON SCHMIERÖLKONZENTRATEN FÜR SCHIFFSÖLE

Title (fr)

UTILISATION D' UN ADDITIF COMPOSITE D'HUILE LUBRIFIANTE MARINE

Publication

EP 2497818 A1 20120912 (EN)

Application

EP 12158753 A 20120309

Priority

CN 201110058054 A 20110310

Abstract (en)

The present invention relates to a marine cylinder oil composite additive. Based on the total weight of the composite additive, said marine cylinder oil composite additive comprises: 15-25% sulfonate detergent with superhigh base number, 35-45% phenolate detergent with superhigh base number, 20-30% naphthenate detergent with superhigh base number, 0-8% dispersing agent, 0-4% antiwear agent, and 10-20% Group I base oil with high viscosity index which is selected from the group consisting of 400SN, 500SN and 650SN. The benefit of the present invention lies in the fact that the composite additive can satisfy the requirement of BOB system about the viscosity and base number, and can be blended with many system oils under a number of domestic and foreign brands so as to provide cylinder lubricating oils with different base numbers. The composite additive according to the present invention has good adaptability and excellent performances in terms of antiwear, antioxidization and high temperature detergency, which meet the requirement of marine engines about the performance of cylinder oils. Moreover, the composite additive according to the present invention is able to maintain good stability in the base oil of the system oil as well as good compatibility, and thus the lubricating performance of the cylinder oil will not be adversely affected.

IPC 8 full level

C10M 163/00 (2006.01)

CPC (source: EP US)

C10M 161/00 (2013.01 - US); C10M 163/00 (2013.01 - EP US); F01M 9/02 (2013.01 - US); C10M 2203/02 (2013.01 - EP US); C10M 2203/0206 (2013.01 - EP US); C10M 2207/028 (2013.01 - EP US); C10M 2215/086 (2013.01 - EP US); C10M 2219/046 (2013.01 - EP US); C10M 2223/045 (2013.01 - EP US); C10N 2030/04 (2013.01 - EP US); C10N 2030/06 (2013.01 - EP US); C10N 2030/10 (2013.01 - EP US); C10N 2030/26 (2020.05 - EP US); C10N 2030/52 (2020.05 - EP US); C10N 2040/252 (2020.05 - EP US); C10N 2070/02 (2020.05 - EP US)

Citation (search report)

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 2497818 A1 20120912; EP 2497818 B1 20161019; CN 102676273 A 20120919; CN 102676273 B 20131016; US 2012231985 A1 20120913; US 2015144430 A1 20150528; WO 2012119273 A1 20120913

DOCDB simple family (application)

EP 12158753 A 20120309; CN 2011000707 W 20110422; CN 201110058054 A 20110310; US 201213416079 A 20120309; US 201414550626 A 20141121