Quaternary ammonium salt detergents for use in fuels

Details Quaternary ammonium salt detergents for use in fuels Quaternary ammonium salt detergents for use in fuels

2011-05-31

2011-05-31

Caldarola, Glenn A (Department: 1771)

Fuel and related compositions

Liquid fuels

Organic nitrogen compound containing

C044S321000, C548S545000

Reexamination Certificate

active

07951211

ABSTRACT:
A quaternary ammonium salt detergent made from the reaction product of the reaction of: (a) a hydrocarbyl substituted acylating agent and a compound having an oxygen or nitrogen atom capable of condensing with said acylating agent and further having a tertiary amino group; 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: 3401119 (1968-09-01), Froehlich
patent: 3468816 (1969-09-01), Thompson et al.
patent: 3749695 (1973-07-01), de Vries
patent: 3778371 (1973-12-01), Malec
patent: 4171959 (1979-10-01), Vartanian
patent: 4326973 (1982-04-01), Hammond et al.
patent: 4338206 (1982-07-01), Hammond et al.
patent: 4482356 (1984-11-01), Hanlon
patent: 4904278 (1990-02-01), Wollenberg et al.
patent: 5059335 (1991-10-01), Rizvi et al.
patent: 5254138 (1993-10-01), Kurek
patent: 5279626 (1994-01-01), Cunningham et al.
patent: 5752989 (1998-05-01), Henly et al.
patent: 5833722 (1998-11-01), Davies et al.
patent: 5962378 (1999-10-01), Tiffany et al.
patent: 6403725 (2002-06-01), Huang et al.
patent: 7435845 (2008-10-01), Dahlmann et al.
patent: 2007/0142238 (2007-06-01), Katafuchi
patent: 1466903 (2004-10-01), None
patent: 960493 (1964-10-01), None
patent: 98/42808 (1998-10-01), None
patent: 2004065430 (2004-08-01), None
Search Report for corresponding PCT Application No. PCT/2006/022925 published Mar. 1, 2007.

Affiliated with

Also associated with

Rating

Quaternary ammonium salt detergents for use in fuels 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 detergents for use in fuels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quaternary ammonium salt detergents for use in fuels will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2666199