Title:
【発明の名称】アルカリ金属添加剤含有潤滑油
Document Type and Number:
Japanese Patent JPH10501836
Kind Code:
A
Abstract:
This invention relates to lubricating oils containing certain ashless dispersants comprising an oil soluble polymeric hydrocarbon backbone having functional groups in which the hydrocarbon backbone is derived from an ethylene alpha-olefin (EAO) copolymer or alpha-olefin homo- or copolymer having > 30 % of terminal vinylidene unsaturation and an M n of from 500 to 7000, in combination with overbased alkali metal additives. It particularly concerns crankcase lubricants having excellent properties of sludge and varnish control, giving good engine cleanliness and yet resistant to oxidation and/or with reduced tendency to thickening due to interactions in the package.
Inventors:
Robson robert
Macdonald Isabel Petrina
Cleverly John Arthur
Dowling michael
Macdonald Isabel Petrina
Cleverly John Arthur
Dowling michael
Application Number:
JP50162196A
Publication Date:
February 17, 1998
Filing Date:
June 12, 1995
Export Citation:
Assignee:
Exxon Chemical Limited
Exxon Chemical Patents Incorporated
Exxon Chemical Patents Incorporated
International Classes:
C10M165/00; C10M163/00; F02B77/04; (IPC1-7): C10M165/00
Attorney, Agent or Firm:
Minoru Nakamura (6 outside)