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Inventor:
Erdman; Timothy R.
Address:
San Rafael, CA
No. of patents:
17
Patents:




Patent Number Title Of Patent Date Issued
4927551 Lubricating oil compositions containing a combination of a modified succinimide and a Group II m May 22, 1990
Lubricating oil compositions containing a combination of a polyamino alkenyl or alkyl succinimide modified to contain carbamate functionalities and a Group II metal overbased sulfurized alkylphenol unexpectedly possess little, if any, adverse compatability effects on deposits in diesel
4840744 Modified succinimides and lubricating oil compositions containing the same June 20, 1989
Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides which contain carbamate functionalities.
4747971 Hydrocarbon soluble nitrogen containing dispersant - fluorophosphoric acid adducts May 31, 1988
Amine-containing dispersants, such as succinimides, Mannich Bases and Viscosity-index improvers are reacted with fluorophosphoric acid. The reaction of the dispersant with the fluorophosphoric acid passivates the dispersant to fluorocarbon compositions used as seals, for example in a
4746446 Modified succinimides May 24, 1988
Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides which contain carbamate functionalities.
4713190 Modified carboxylic amide dispersants December 15, 1987
Carboxylic amide dispersants are reacted with a fluorine-containing acid reagent selected from fluorophosphoric acid, boron trifluoride, fluoboric acid and the ammonium salts thereof. The reaction of the dispersant with the fluorine-containing acid passivates the dispersant to fluorocarb
4648980 Hydrocarbon soluble nitrogen containing dispersant - fluorophosphoric acid adducts March 10, 1987
Amine-containing dispersants, such as succinimides, Mannich Bases and Viscosity-index improvers are reacted with fluorophosphoric acid. The reaction of the dispersant with the fluorophosphoric acid passivates the dispersant to fluorocarbon compositions used as seals, for example in a
4615826 Hydrocarbon soluble nitrogen containing dispersant-fluorophosphoric acid adducts October 7, 1986
Amine-containing dispersants, such as succinimides, Mannich Bases and Viscosity-index improvers are reacted with fluorophosphoric acid. The reaction of the dispersant with the fluorophosphoric acid passivates the dispersant to fluorocarbon compositions used as seals, for example in a
4612132 Modified succinimides September 16, 1986
Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides which contain carbamate functionalities.
4584112 Fuel-efficient lubricating oil April 22, 1986
The fuel economy of an internal combustion engine can be improved by adding to the lubricating oil used to lubricate the crankcase of said engine from 0.25 to 2 weight percent of pentaerythritol mono-oleate in combination with 15 to 25 millimols per kilogram of zinc O,O-di(2-ethylhex
4548722 Dispersant lubricating oil additives October 22, 1985
Dispersant lubricating oil additives are prepared by reacting oil-soluble dispersant compositions containing at least one primary or secondary amino group with SO.sub.2.
4521319 Dispersant lubricating oil additives June 4, 1985
Dispersant lubricating oil additives are prepared by reacting oil-soluble dispersant compositions containing at least one primary or secondary amino group with SO.sub.2.
4410437 Amine substituted hydrocarbon polymer dispersant lubricating oil additives October 18, 1983
Dispersant lubricating oil additives are prepared by reacting oil-soluble dispersant compositions containing at least one primary or secondary amino group with SO.sub.2.
4406803 Method for improving fuel economy of internal combustion engines September 27, 1983
Lubricating oils containing oil soluble C.sub.10 -C.sub.30 alkane-1,2-diols have been found to reduce fuel consumption in an internal combustion engine.
4376056 Fuel economy in internal combustion engines March 8, 1983
The fuel economy of an internal combustion engine can be improved by adding to the lubricating oil used to lubricate the crankcase of said engine from 0.25 to 2 weight percent of pentaerythritol mono-oleate.
4336149 Fuel economy in internal combustion engines June 22, 1982
The fuel economy of an internal combustion engine can be improved by adding to the lubricating oil used to lubricate the crankcase of said engine from 0.25 to 2 weight percent of pentaerythritol mono-oleate.
4331222 Method for reducing brake noise in oil-immersed disc brakes May 25, 1982
Lubricating oils containing oil soluble C.sub.8 -C.sub.28 alkane-1,2-diols have been found to reduce brake noise for oil-immersed disc brakes.
4275006 Process of preparing dispersant lubricating oil additives June 23, 1981
Dispersant lubricating oil additives are prepared by reacting oil-soluble dispersant compositions containing at least one primary or secondary amino group with SO.sub.2.


 
 
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