EP 0416907 A3 19910410 - METHOD OF REMOVING SOOT FROM LUBRICATING OILS
Title (en)
METHOD OF REMOVING SOOT FROM LUBRICATING OILS
Publication
Application
Priority
US 40403289 A 19890907
Abstract (en)
[origin: EP0416907A2] Soot can be effectively removed from a lubricating oil used in a non-gasoline fueled internal combustion engine by contacting the oil with a heterogenous strong base. This results in improved engine cleanliness and reduced engine wear.
IPC 1-7
IPC 8 full level
C10M 125/10 (2006.01); C10M 175/00 (2006.01); C10M 175/02 (2006.01); C10M 177/00 (2006.01); C10N 10/02 (2006.01); C10N 10/04 (2006.01); C10N 40/25 (2006.01); F02B 77/04 (2006.01)
CPC (source: EP KR)
C10M 125/00 (2013.01 - KR); C10M 175/0091 (2013.01 - EP); C10M 177/00 (2013.01 - EP); F02B 77/04 (2013.01 - EP)
Citation (search report)
- [X] GB 929177 A 19630619 - KIICHIRO SARUI
- [X] US 1914999 A 19330620 - MAVERICK GEORGE M, et al
- [X] GB 476422 A 19371206 - JOHN KAY RUSSELL, et al
- [XD] EP 0275148 A2 19880720 - EXXON CHEMICAL PATENTS INC [US]
- [XP] EP 0371639 A1 19900606 - EXXON RESEARCH ENGINEERING CO [US]
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI NL SE
DOCDB simple family (publication)
EP 0416907 A2 19910313; EP 0416907 A3 19910410; AU 6218890 A 19910314; AU 638274 B2 19930624; BR 9004414 A 19910910; CA 2024005 A1 19910308; JP H03152196 A 19910628; KR 910006467 A 19910429
DOCDB simple family (application)
EP 90309735 A 19900905; AU 6218890 A 19900906; BR 9004414 A 19900905; CA 2024005 A 19900824; JP 23883590 A 19900907; KR 900014045 A 19900906