Abstract: An effective amount of polyisobutylene effectively reduces polymerization and cross-linking reactions resulting in molecular weight and viscosity increase during production of dispersant viscosity index improvers by the amination and/or sulfurization of polyethylene containing polymers.

Abstract: Processes for the production of aminated sulfurized olefins are improved by performing the reaction in the presence of a tar and charred reaction byproduct reducing amount of an alkali metal or alkaline earth metal compound.

Abstract: Corrosive wear caused by aminated sulfurized olefins can be reduced by reaction of the aminated sulfurized olefine with a boron compound and formaldehyde.

Abstract: An amino methylenesulfonic acid comprising the reaction product of an amine compound (eg) a substituted succinimide containing free primary or secondary nitrogen atoms or a compound of the formula R.sub.1 NH--CH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2 or RNH.sub.2 wherein R and R.sub.1 have 1 to 25 carbon atoms; a compound of the formula ##STR1## wherein R.sub.2 is a hydrogen or a methyl group and R.sub.3 is a hydrogen or an alkyl group having from about 1 to 7 carbon atoms and sulfur dioxide; which can be alternatively reacted with a polyfunctional crosslinking agent; and mixtures of the amino-methylene sulfonic acid with a nitrogen compound adduct of a maleic anhydride olefin copolymer.

Abstract: A process for producing viscous polyisobutylene which comprises polymerizing isobutylene in a liquid phase using a halided alumina catalyst.

Abstract: An improved low viscosity (i.e.) 5 W to 71/2 W engine oil resistant to oxidation and consumption comprising a major portion of a lubricating oil stock, a sulfurized oil, a dispersant, an anti-corrosion agent, an anti-rust agent, a detergent, an anti-oxidant, and a viscosity index improver.

Abstract: A method is disclosed for reducing formation plugging impurities in a sulfonate surfactant used in enhanced oil recovery operations which comprises contacting said surfactant with an effective amount of an aldehyde having from 1 to about 18 carbon atoms. In a preferred instance, a method is disclosed for the treatment of sulfonate surfactants useful in enhanced recovery processing to substantially reduce the formation plugging impurities, typically inorganic sulfite salts.

Abstract: Crude oil, residuum, and vacuum gas oil containing an effective amount of a linear alpha olefin substituted succinate diester of a linear primary monohydric alcohol.

Abstract: A method for recovering oil from an oil bearing formation which comprises injecting into the formation an aqueous fluid comprising an effective amount of the reaction product of an alkenyl succinic anhydride and a tertiary amine.

Abstract: Mannich additives formed from a 2,4- or 2,6-ditertiary alkyl "hindered" phenol, a polyamine, a formaldehyde-yielding reagent and at least one substantially hydrocarbon compound with at least one active or acidic hydrogen selected from the group consisting of a para mono-alkyl phenol, and an oxidized olefinic polymer, are improved Mannich additives for high temperature internal combustion engine lubrication.

Abstract: Processes for the manufacture of substantially haze free zinc salts of dihydrocarbyldithiophosphoric acid comprising the addition of an effective amount of a surface active agent or surfactant at or prior to the neutralization of a dihydrocarbyldithiophosphoric acid by zinc oxide that reduces the Electrophoretic mobility (EM) of an untreated colloidal zinc oxide particle by about 25%. Generally the mobility of the treated colloidal zinc compound particle is reduced to less than about 1.0 .times.10.sup.-3 microns/sec. per volt/cm.

Abstract: A polyamine derivative of an oxidized substantially undegraded olefinic substituted dicarboxylic acid compound and gasoline compositions containing an effective amount of the reaction product.

Abstract: Mannich additives formed from a tertiary carbinamine, a substantially hydrocarbon compound having at least one acidic or active hydrogen, a polyamine and a formaldehyde-yielding reagent.

Abstract: A process for preparing molybdenum phosphosulfurized hydrocarbon compositions by reacting an aqueous solution of a molybdenum compound with a phosphosulfurized hydrocarbon.

Abstract: Protein containing food products are prepared by a process in which yeast is codried with whey. The codried yeast-whey food is suitable for human foods. Preparations containing yeast-whey product do not have a yeast character or flavor in some food applications.

Abstract: Ashless lubricant additive compositions which contain a small but effective amount of overbased aminoguanidine sulfonate, sufficient to impart acid neutralization, antitrust, anticorrosive, dispersant, and detergent properties, are formed by reacting greater than about one mole of aminoguanidine with one mole of a hydrocarbon sulfonic acid.

Abstract: A process for producing alkenyl substituted anhydrides which comprises introducing one mole of polypropene or polybutene having a number average molecular weight of 200-3000, 0.8-5.0 moles of the anhydride of an unsaturated dicarboxylic acid and 5-200 ppm of an additive which suppresses the formation of tarry materials and undesirable reaction side products and/or improves yield, into a reaction zone, reacting said materials at a temperature from about 150.degree. C to about 300.degree. C to form the alkenyl anhydride, distilling off and condensing the unreacted anhydride from the reaction mixture, recovering the alkenyl substituted anhydride, and returning at least a portion of the recovered unreacted anhydride to a reaction zone for reaction with an alkenyl material.