Abstract: Disclosed is a leaded motor fuel additive composition which synergistically interacts with the alkyl lead additive to reduce both fuel intake system deposit formation and combustion chamber deposit formation, thereby reducing engine ORI and maintaining desired engine performance.

Abstract: Disclosed is a MMT containing motor fuel additive composition which synergistically interacts with the MMT additive to reduce both fuel intake system deposit formation and combustion chamber deposit formation, thereby reducing engine ORI and maintaining desired engine performance.

Abstract: Disclosed is a biodiesel fuel additive composition which accelerates combustion phenomenon, reduces ignition delay, and improves Cetane number, thereby lowering particulate emissions, and improving fuel economy in diesel engines.

Abstract: Disclosed is a MMT containing motor fuel additive composition which synergistically combines the octane enhancing capabilities of MMT with the benefits of a special additive package to reduce both fuel intake system deposit formation and combustion chamber deposit formation, thereby reducing engine ORI and maintaining desired engine performance.

Abstract: Disclosed is an alcohol containing motor fuel additive composition which synergistically interacts with the alcohol additive to reduce fuel intake system deposit formation and/or combustion chamber deposit formation, thereby reducing engine ORI and maintaining desired engine performance.

Abstract: Disclosed is a diesel fuel additive composition which accelerates combustion phenomenon, reduces ignition delay, and improves Cetane number, thereby lowering particulate emissions, and improving fuel economy in diesel engines.

Abstract: Disclosed is a ferrocene containing motor fuel additive composition which synergistically combines the octane enhancing capabilities of ferrocene with the benefits of a special additive package to reduce both fuel intake system deposit formation and combustion chamber deposit formation, thereby reducing engine ORI and maintaining desired engine performance.

Abstract: Disclosed is a leaded motor fuel additive composition which synergistically interacts with the alkyl lead additive to reduce both fuel intake system deposit formation and combustion chamber deposit formation, thereby reducing engine ORI and maintaining desired engine performance.

Abstract: Disclosed is an ether containing motor fuel additive composition which synergistically interacts with the ether additive to reduce fuel intake system deposit formation and/or combustion chamber deposit formation, thereby reducing engine ORI and maintaining desired engine performance.

Abstract: Process for obtaining alkyl- and arylalkylthiosulfates in a water-organic solvent two-phase system by nucleophilic substitution of the halogen of an alkyl or arylalkyl halide by a thiosulfate ion, characterized by the fact that the substitution is effected in the presence of a phase transfer agent acting as a catalyst and used in catalytic proportions.

Abstract: The invention relates to electrical insulators having increased resistance to partial discharges and electrical equipment comprising such electrical insulators.These electrical insulators are formed of a macromolecular material in which is incorporated a chelate which is a derivative of an organic compound of general formula: ##STR1## wherein: R is CH.sub.2 COOM or --OH,M is Na or H,x is an integer from 1 to 4,n is an integer from 0 to 4,the metal chelate being present in the material in an amount sufficient for promoting the extinction of partial discharges, said amount not exceeding a value which would alter the physical properties of the insulator such as the volume resistivity thereof.

Abstract: There are disclosed novel lubricating compositions containing a major proportion of a lubricating oil and a minor proportion of an oil soluble polymer additive, and possibly other additives, wherein said polymer additive is a copolymer of ethylene, a monoolefin having 3 to 6 carbon atoms or a monoolefin having 3 to 6 carbon atoms and a non-conjugated diene with one or more specific nitrogenous monomers, said polymer having a reduced viscosity, measured in decalin at 135.degree. C., comprised between 0.5 and 2 and a polydispersity lower than 5.Such a polymer additive improves the oil viscosity index while ensuring the dispersion of the slurry it may contain.

Abstract: The invention relates to electrical insulators having increased resistance to partial discharges and electrical equipment comprising such electrical insulators.These electrical insulators are formed of a macromolecular material in which is incorporated a chelate of general formula: ##STR1## wherein: R.sub.1, R.sub.2 and R.sub.3 each represent hydrogen or a alkyl, aryl, or cycloalkyl group or a heterocyclic group containing a sulphur, oxygen or nitrogen atom, whereby said group or heterocyclic group may be substituted by one or more halogen atoms;X and Y represent oxygen or sulphur;The total number of carbon atoms in the metal chelate is between 5 and 25;M.sup.n+ stands for a metal ion, andN is an integer from 1 to 4, this enolate or thioenolate being present in said insulating material in a sufficient amount for promoting extinction of partial discharges, said amount not exceeding a value which would substantially alter the physical properties of the insulator, such as its volume resistivity.

Abstract: Novel amorphous copolymers of mono-olefins or of mono-olefins and non-conjugated dienes with unsaturated derivatives of imides are disclosed. These copolymers containing from 99.9 to 80% by weight of non-polar units derived from at least two mono-olefins containing 2 to 18 carbon atoms, particularly ethylene and propene or ethylene and butene-1, and possibly one or more non-conjugated dienes, and from 0.1 to 20% units derived from an imide having the formula: ##STR1## wherein: Z is an alkenyl radical containing 2 to 16 carbon atoms, and A designates a saturated or unsaturated divalent hydrocarbon radical which contains 2 to 12 carbon atoms and which may possibly carry amino, halogen or carboxyl groups. Also disclosed are graft amorphous copolymers of amorphous copolymers of olefins or of olefins and non-conjugated dienes substrates with unsaturated derivatives of cyclic imides grafted thereon.

Abstract: Novel amorphous copolymers of mono-olefins or of mono-olefins and non-conjugated dienes with unsaturated derivatives of imides, are disclosed. These copolymers containing from 99.9 to 80% by weight of non-polar units derived from at least two mono-olefins containing 2 to 18 carbon atoms, particularly ethylene and propene or ethylene and butene-1, and possibly one or more non-conjugated dienes, and from 0.1 to 20% units derived from an amide having the formula: ##STR1## wherein: Z is an alkenyl radical containing 2 to 16 carbon atoms, andA designates a saturated or unsaturated divalent hydrocarbon radical which contains 2 to 12 carbon atoms and which may possibly carry amino, halogeno or carboxyl groups.Some of said copolymers may be used as polymer additives in lubricating compounds to improve their viscosity index and to disperse the slurry which they may contain.

Abstract: There are disclosed novel lubricating compositions containing a major proportion of a lubricating oil and a minor proportion of an oil soluble polymer additive, and possibly other additives, wherein said polymer additive is a copolymer of ethylene, a monoolefin having 3 to 6 carbon atoms or a monoolefin having 3 to 6 carbon atoms and a non-conjugated diene with one or more specific nitrogenous monomers, said polymer having a reduced viscosity, measured in decalin at 135.degree. C, comprised between 0.5 and 2 and a polydispersity lower than 5.Such a polymer additive improves the oil viscosity index while ensuring the dispersion of the slurry it may contain.

Abstract: Novel amorphous copolymers of mono-olefins or of mono-olefins and non-conjugated dienes with unsaturated derivatives of imides are disclosed. These copolymers containing from 99.9 to 80% by weight of non-polar units derived from at least two mono-olefins containing 2 to 18 carbon atoms, particularly ethylene and propene or ethylene and butene-1, and possibly one or more non-conjugated dienes, and from 0.1 to 20% units derived from an imide having the formula ##STR1## wherein Z is an alkenyl radical containing 2 to 16 carbon atoms, andA designates a saturated or unsaturated divalent hydrocarbon radical which contains 2 to 12 carbon atoms and which may possibly carry amino, halogeno or carboxyl groups.Some of said copolymers may be used as polymer additives in lubricating compounds to improve their viscosity index and to disperse the slurry which they may contain.

Abstract: The behavior in the cold of crude oil or petroleum distillates may be improved by incorporation of polymeric substances such as a hydrogenated polybutadiene or a hydrogenated copolymer of butadiene with at least one conjugated aliphatic diolefin of 5-8 carbon atoms. The additive is active at concentrations of from 10 to 1,000 grams per m.sup.3 of oil.

Abstract: The behavior in the cold of crude oil or petroleum distillates may be improved by incorporation of polymeric substances such as a hydrogenated polybutadiene or a hydrogenated copolymer of butadiene with at least one conjugated aliphatic diolefin of 5-8 carbon atoms. The additive is active at concentrations of from 10 to 1,000 grams per m.sup.3 of oil.