Abstract: A process for preparing nitrogen-containing copolymers useful as dispersant-viscosity improvers for lubricating oil compositions, additive concentrates and lubricating oil compositions are described.

Abstract: The present invention describes a process for reducing the chlorine content of various organochlorine compounds including the step introducing a source of iodine or bromine and mixtures thereof to the organochlorine compound.

Abstract: This invention relates to compositions which are useful as additives in lubricants and fuels, and more particularly, to additives which are chlorine-free or contain only minor amounts of chlorine. More particularly, carboxylic compositions are described which are prepared by reacting a terpolymer derived from a mixture of monomers comprising ethylene, an alpha-olefin containing 3 to about 20 carbon atoms, and a non-conjugated polyene with an alpha,beta-monounsaturated dicarboxylic acid or reactive derivative thereof. These carboxylic compositions may be used in lubricating oil or fuel compositions or may be used to form carboxylic derivative compositions which are useful in lubricating oil and fuel compositions.

Abstract: The present invention relates to a process for reducing the chlorine content of an organochlorine compound comprising: introducing into the organochlorine compound, at least one Lewis acid to form a mixture, and contacting the organochlorine compound with the Lewis acid in the mixture in the absence of elemental carbon for a sufficient amount of time to reduce the chlorine content of the organochlorine compound. In another embodiment, a process is described for reducing the chlorine content of an organochlorine compound comprising contacting the organochlorine compound with (a) at least one acid selected from the group consisting of Lewis acids, mineral acids other than hydriodic acid and hydrobromic acid, and organic acids having a pKa of less than about 2, and (b) a source of iodine or bromine in the absence of elemental carbon for a sufficient amount of time to reduce the chlorine content of the organochlorine compound.

Abstract: The present invention relates to a process for reducing the chlorine content of an organochlorine compound comprising: introducing into the organochlorine compound, at least one acid selected from the group consisting of Lewis acids, mineral acids other than hydriodic acid and hydrobromic acid, and organic acids having a pKa of less than about 2 to form a mixture, and contacting the organochlorine compound with the at least one acid in the mixture for a sufficient amount of time to reduce the chlorine content of the organochlorine compound.