Global Patent Index - EP 0709447 A1

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EP 0709447 A1 19960501 - Multiring aromatics for enhanced deposit control

Title (en)

Multiring aromatics for enhanced deposit control

Title (de)

Polycyclische aromatische Verbindungen für verbessertes Niederschlagskontroll

Title (fr)

Composés aromatiques polycyliques pour le contrÔle amélioré des dépÔts

Publication

EP 0709447 A1 19960501 (EN)

Application

EP 95307523 A 19951024

Priority

US 32821494 A 19941025

Abstract (en)

The present invention provides for lubricating oil compositions, and method of making same, comprising the synergistic combination of a synthetic lube base stock, a copper containing antioxidant and a deposit control enhancing amount of an oil soluble or oil dispersible multiring aromatic compound, typically 2, 3 and 4 ring multiring aromatics. Typically these are added in a minor amount of less than 25 wt%. The invention has utility in lube applications.

IPC 1-7

C10M 141/02; C10M 169/04

IPC 8 full level

C10M 141/02 (2006.01); C10M 141/06 (2006.01); C10M 169/04 (2006.01)

CPC (source: EP)

C10M 101/02 (2013.01); C10M 101/025 (2013.01); C10M 107/02 (2013.01); C10M 127/04 (2013.01); C10M 127/06 (2013.01); C10M 129/10 (2013.01); C10M 129/24 (2013.01); C10M 129/40 (2013.01); C10M 129/58 (2013.01); C10M 129/93 (2013.01); C10M 133/12 (2013.01); C10M 141/02 (2013.01); C10M 141/06 (2013.01); C10M 169/04 (2013.01); C10M 2203/06 (2013.01); C10M 2203/1006 (2013.01); C10M 2203/1025 (2013.01); C10M 2203/1045 (2013.01); C10M 2203/1065 (2013.01); C10M 2203/1085 (2013.01); C10M 2205/0206 (2013.01); C10M 2205/143 (2013.01); C10M 2205/163 (2013.01); C10M 2205/173 (2013.01); C10M 2205/183 (2013.01); C10M 2207/023 (2013.01); C10M 2207/026 (2013.01); C10M 2207/027 (2013.01); C10M 2207/08 (2013.01); C10M 2207/126 (2013.01); C10M 2207/129 (2013.01); C10M 2207/16 (2013.01); C10M 2215/06 (2013.01); C10M 2215/064 (2013.01); C10M 2215/065 (2013.01); C10M 2215/066 (2013.01); C10M 2215/067 (2013.01); C10M 2215/068 (2013.01)

Citation (search report)

[A] WO 8900186 A1 19890112 - LUBRIZOL CORP [US]
[A] GB 815802 A 19590701 - EXXON RESEARCH ENGINEERING CO
[A] US 3026263 A 19620320 - ARIMOTO FRED S
[A] EP 0444830 A1 19910904 - ETHYL PETROLEUM ADDITIVES LTD [GB]
[A] EP 0330523 A2 19890830 - EXXON CHEMICAL PATENTS INC [US]

Designated contracting state (EPC)

BE DE FR GB IT NL

DOCDB simple family (publication)

EP 0709447 A1 19960501

DOCDB simple family (application)

EP 95307523 A 19951024