Fuel and related compositions – Liquid fuels – Organic nitrogen compound containing
Reexamination Certificate
2011-01-31
2011-12-27
McAvoy, Ellen (Department: 1771)
Fuel and related compositions
Liquid fuels
Organic nitrogen compound containing
C106S031430, C106S031750, C523S160000, C524S236000
Reexamination Certificate
active
08083814
ABSTRACT:
A quaternary ammonium salt detergent made from the reaction product of the reaction of: (a) Mannich reaction product having a tertiary amino group, said Mannich reaction product being prepared from the reaction of a hydrocarbyl-substituted phenol, an aldehyde, and amine; and (b) a quaternizing agent suitable for converting the tertiary amino group to a quaternary nitrogen and the use of such quaternary ammonium salt detergents in a fuel composition to reduce intake valve deposits.
REFERENCES:
patent: 3749695 (1973-07-01), de Vries
patent: 3778371 (1973-12-01), Malec
patent: 4056531 (1977-11-01), Malec
patent: 4071327 (1978-01-01), Dorer, Jr.
patent: 4108858 (1978-08-01), Malec
patent: 4171959 (1979-10-01), Vartanian
patent: 4253980 (1981-03-01), Hammond et al.
patent: 4306070 (1981-12-01), Hammond et al.
patent: 4326973 (1982-04-01), Hammond et al.
patent: 4338206 (1982-07-01), Hammond et al.
patent: 5000792 (1991-03-01), Ohta et al.
patent: 5254138 (1993-10-01), Kurel
patent: 5279626 (1994-01-01), Cunningham et al.
patent: 5697988 (1997-12-01), Malfer et al.
patent: 5721358 (1998-02-01), Hikosaka et al.
patent: 5833722 (1998-11-01), Davies et al.
patent: 5876468 (1999-03-01), Moreton
patent: 6403725 (2002-06-01), Huang et al.
patent: 7435845 (2008-10-01), Dahlmann et al.
patent: 2005/0107266 (2005-05-01), Wollenberg et al.
patent: 2011/0048354 (2011-03-01), Hollingshurst
patent: 1373660 (1974-11-01), None
Stevenson Paul R.
Thetford Dean
Vilardo Jonathan S.
Hilker Christopher D.
McAvoy Ellen
Oladapo Taiwo
Shold David M.
The Lubrizol Corporation
LandOfFree
Quaternary ammonium salt of a mannich compound does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Quaternary ammonium salt of a mannich compound, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quaternary ammonium salt of a mannich compound will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4266986