1
Antonio Gutierrez, Won R Song, Robert D Lundberg, Robert A Kleist: Novel ethylene alpha-olefin copolymer substituted Mannich base lubricant dispersant additives. Exxon Chemical Patents, J B Murray Jr, May 21, 1991: US05017299 (98 worldwide citation)

The present invention is directed to oil-soluble lubricating oil additives comprising Mannich Base condensates of an alkyl substituted hydroxy aromatic compound with formaldehyde and an amine, wherein the alkyl-moiety of the aromatic compounds is derived from at least one ethylene alpha-olefin copol ...


2
Won R Song, Albert Rossi, Howard W Turner, Howard C Welborn, Robert D Lundberg, Antonio Gutierrez, Robert A Kleist: Ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives (PT-920). Exxon Chemical Patents, J B Murray Jr, T V Kowalchyn, July 20, 1993: US05229022 (77 worldwide citation)

The present invention is directed to an oil-soluble fuel and lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic ...


3
Gary Ver Strate, Ricardo Bloch, Mark J Struglinski, John E Johnston, Roger K West: Viscosity modifier polymers. Exxon Chemical Patents, J B Murray Jr, February 14, 1989: US04804794 (63 worldwide citation)

The present invention relats to novel copolymers of alpha-olefins comprised of intramolecularly heterogeneous and intermolecularly homogeneous copolymer chains.


4
Glen P Fetterman Jr, Alan A Schetelich: Low ash lubricant compositions for internal combustion engines (PT-727). Exxon Chemical Patents, J B Murray Jr, April 7, 1992: US05102566 (55 worldwide citation)

In accordance with the present invention, there are provided low sulfacted ash lubricating oil compositions which comprise an oil of lubricating viscosity as the major component and as the minor component (A) at least about 2 wt % of at least one ashless nitrogen- or ester-containing dispersant, (B) ...


5
Antonio Gutierrez, Won R Song, Robert D Lundberg, Robert A Kleist: Ethylene alpha-olefin copolymer substituted mannich base lubricant dispersant additives. Exxon Chemical Patents, J B Murray Jr, R A Negin, February 16, 1993: US05186851 (55 worldwide citation)

The present invention is directed to oil-soluble lubricating oil additives comprising Mannich Base condensates of an alkyl substituted hydroxy aromatic compound with formaldehyde and an amine, wherein the alkyl-moiety of the aromatic compounds is derived from at least one ethylene alpha-olefin copol ...


6
Antonio Gutierrez, Robert D Lundberg: Amide dispersant additives derived from amino-amines. Exxon Chemical Patents, J B Murray Jr, September 11, 1990: US04956107 (54 worldwide citation)

The present invention is directed to a dispersant additive comprising at least one adduct of (A) a polyolefin of 300 to 10,000 number average molecular weight substituted with at least 0.5 (e.g., from about 1 to 4) monocarboxylic acid producing moieties (preferably acid or ester moieties) per polyol ...


7
William B Diana, Joseph V Cusumano, Keith R Gorda, Jacob Emert, William B Eckstrom, David C Dankworth, Jon E Stanat, James P Stokes: Dispersant additives and process. Exxon Chemical Patents, K R Walton, J B Murray Jr, August 10, 1999: US05936041 (52 worldwide citation)

The invention pertains to improved lubricating oil dispersants wherein a fractionating polymer is prepared prior to functionalization (e.g., in the Koch reaction) for making dispersant additives. In one aspect, it was discovered that by fractionating a polymer to remove light hydrocarbon and unreact ...


8
Frank J Chen, Jacob Emert, Robert D Lundberg, Gregory C Giffin: Process for preparing polybutenes having enhanced reactivity using boron trifluoride catalysts (PT-647). Exxon Chemical Patents, J B Murray Jr, M B Kapustij, July 18, 1989: US04849572 (46 worldwide citation)

There is provided a process for preparing polybutenes having enhanced reactivity using a BF.sub.3 catalyst and an immediate quench procedure and controlled polymerization times of 12 to 40 minutes in combination with isobutylene conversions of at least 70%.


9
Antonio Gutierrez, Robert D Lundberg: Dispersant additives derived from lactone modified amido-amine adducts. Exxon Chemical Patents, J B Murray Jr, October 16, 1990: US04963275 (40 worldwide citation)

The present invention is directed to a lactone modified dispersant additive comprising at least one adduct of (A) a polyolefin of 300 to 10,000 number average molecular weight substituted with at least 0.8 (e.g., from about 1 to 4) dicarboxylic acid producing moieties (preferably acid or anhydride m ...


10
Antonio Gutierrez, Robert D Lundberg: Dispersant additives derived from amido-amines. Exxon Chemical Patents, J B Murray Jr, August 15, 1989: US04857217 (40 worldwide citation)

The present invention is directed to a dispersant additive comprising at least one adduct of (A) a polyolefin of 300 to 10,000 number average molecular weight substituted with at least 0.3 (e.g., from about 1 to 4) dicarboxylic acid producing moieties (preferably acid or anhydride moieties) per poly ...