1
Ricardo Bloch, Thomas J McCrary Jr, Darrell W Brownawell: Ethylene copolymer viscosity index improver-dispersant additive useful in oil compositions. Exxon Research & Engineering Co, Frank T Johmann, May 14, 1985: US04517104 (129 worldwide citation)

Oil soluble viscosity index improving ethylene copolymers, such as copolymers of ethylene and propylene; and ethylene, propylene and diolefin; etc., are reacted or grafted with ethylenically unsaturated carboxylic acid moieties, preferably maleic anhydride moieties, and reacted with polyamines havin ...


2
Antonio Gutierrez, Darrell W Brownawell, Ricardo Bloch, Jack E Johnston: Ethylene copolymer viscosity index improver-dispersant additive useful in oil compositions. Exxon Research & Engineering Co, F T Johmann, R A Maggio, December 30, 1986: US04632769 (78 worldwide citation)

Oil soluble viscosity index improving ethylene copolymers, such as copolymers of ethylene and propylene; and ethylene, propylene and diolefin; etc., are reacted or grafted with ethylenically unsaturated carboxylic acid moieties, preferably maleic anhydride moieties, and reacted with polyamines havin ...


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
John E Johnston, Ricardo Bloch, Gary W Ver Strate, W R Song: Lubricating oil compositions containing ethylene-alpha-olefin polymers of controlled sequence distribution and molecular heterogeneity. Exxon Research & Engineering Co, John J Mahon, March 26, 1985: US04507515 (40 worldwide citation)

Ethylene-alpha-olefin copolymers are disclosed being particularly useful as improving the low temperature viscosity and pumpability properties of lubricating oil comprised of a major and minor component each of which have a defined ethylene sequence distribution with respect to the number of ethylen ...


5
Max J Wisotsky, Ricardo Bloch, Darrell W Brownawell, Frank J Chen, Antonio Gutierrez: Succinimide lubricating oil dispersant. Exxon Research & Engineering Co, J J Mahon, R A Maggio, J B Murray Jr, August 11, 1987: US04686054 (39 worldwide citation)

There is a disclosed an improved lubricating oil dispersant suitable for both gasoline engine and diesel engine lubricating oil, the dispersant being prepared in a sequential process whereby a polyolefin succinic anhydride is reacted first with an alkylene polyamine and subsequently with maleic anhy ...


6
Antonio Gutierrez, Darrell W Brownawell, Ricardo Bloch: Ethylene copolymer viscosity index improver-dispersant additive useful in oil compositions. Exxon Research & Engineering Co, Frank T Johmann, December 10, 1985: US04557847 (32 worldwide citation)

Oil soluble viscosity index improving ethylene copolymers, such as copolymers of ethylene and propylene; and ethylene, propylene and diolefin; etc., are reacted or grafted with ethylenically unsaturated carboxylic acid moieties, preferably maleic anhydride moieties, and reacted with polyamines havin ...


7
Gary Ver Strate, Ricardo Bloch, Mark J Struglinski, John E Johnston, Roger K West: Viscosity modifier polymers (E-98). Exxon Chemical Patents, J B Murray Jr, M B Kapustij, February 13, 1990: US04900461 (30 worldwide citation)

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


8
Antonio Gutierrez, Robert D Lundberg, Robert A Kleist, Ricardo Bloch: Polyolefinic succinimide polyamine alkyl acetoacetate adducts as dispersants in lubricating oil compositions. Exxon Chemical Patents, E T Wheelock, J B Murray Jr, June 13, 1989: US04839071 (22 worldwide citation)

This invention is to a lubricating or fuel oil composition containing polyolefinic succinimide polyamine alkyl acetoacetate adducts of the general formula: ##STR1## wherein Z.sup.1 and Z.sup.3 are moities of the formula: ##STR2## Z.sup.2 is a moiety of the formula: ##STR3## wherein R.sup.2, R.sup.3 ...


9
Antonio Gutierrez, Robert A Kleist, Ricardo Bloch: Ethylene alpha-olefin Mannich Base viscosity index improver/dispersant additives derived from amino phenols and monosecondary amines. Exxon Chemical Patents, J B Murray, M E Alter, June 15, 1993: US05219480 (18 worldwide citation)

The present invention is directed to oil-soluble lubricating oil viscosity index improver/dispersant additives comprising Mannich Base condensates of a grafted ethylene copolymer, an optionally alkyl-substituted N-hydroxyaryl compound, an aldehyde, and a monosecondary amine, whereby oil solutions, p ...


10
Antonio Gutierrez, Robert D Lundberg, Robert A Kleist, Ricardo Bloch: Polyolefinic succinimide polyamine alkyl acetoacetate adducts as dispersants in fuel oil compositions. Exxon Chemical Patents, J B Murray Jr, March 6, 1990: US04906252 (15 worldwide citation)

This invention is to a fuel oil composition containing polyolefinic succinimide polyamine alkyl acetoacetate adducts of the general following: ##STR1## wherein the variables are defined herein. The adduct additives are especially useful in concentrates and fuel oil compositions as dispersants. The f ...