Societe Nationale Elf Aquitaine

Ato Chimie

Societe Nationale Des Petroles D'aquitaine

Entreprise De Recherches Et D'activites Petrolieres (e.r.a.p.)

Ato Chemie

Entreprise De Recherches Et D'activities Petrolieres (e.r.a.p.)

Societe Nationale Des Petroles Aquitaine

Gilbert Marie

Gilbert Chapelet

Andre Lang

Laurent Germanaud

Patrick Turello

Hubert Knoche

Nguyen Truong Dinh

Yves Amiard

Nguyen Truong-Dinh

Jean -Paul Bellissent

The invention relates to additives to lubricants resulting from the condensation of a primary or secondary amine and/or of an alkylene polyamine with a copolymer containing vicinal carboxylic groups. Derivatives of phenothiazine, or naphthylamine and of diphenylamine are employed in most cases as alkylene polyamine. These compounds can be employed as multifunctional additives to lubricants.

Additives to lubricants resulting from the condensation of an alkylene

The invention provides polymeric compounds resulting from the condensation of a primary amine having one phenolic group in its molecule with a copolymer of carboxylic acid functions. The copolymer is formed by copolymerization of an unsaturated monocarboxylic acid with at least one derivative of such a acid or by grafting of an unsaturated acid on a hydrocarbon polymer. These compounds can be especially used as multifunctional additives to lubricants.

Polymeric compounds especially useful as additives to lubricants and

A process for making crystalline polymers or copolymers of alpha-olefins containing 3 to 8 carbon atoms, such as polypropylene, by polymerization with a catalyst consisting of a combination of titanium chloride and an organic aluminium compound, in the presence of a stereospecificity additive. This stereospecificity additive has the formula:

Process for making alpha-olefin polymers or copolymers with high

Isotactic and atactic polypropylene of acceptable purity are obtained by contacting the polymerized polymer with a mixture of hydrocarbon, alcohol, organic acid and diketone.

Process for separating isotactic and atactic polypropylenes

A process for making crystalline polymers or copolymers of alpha-olefins containing 3 to 8 carbon atoms, such as polypropylene, by polymerization with a catalyst consisting of a combination of titanium chloride and an organic aluminum compound, in the presence of a stereospecificity additive. This stereospecificity additive has the formula:

A process for making crystalline polymers or copolymers of alpha-olefins containing 3 to 8 carbon atoms, such as polypropylene, by polymerization with a catalyst consisting of a combination of titanium chloride and an organic aluminum compound, in the presence of a stereospecificity additive. This stereospecificity additive is a cyclic polyether of the crown ether type, which may contain sulphur atoms and/or nitro radicals; this additive may be used together with an activator. The process produces polymers or copolymers with a high isotacticity index, while keeping catalyst activity sufficiently high.

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.

Lubricating compositions with lactam or thiolactam-containing copolymers

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. Some of said copolymers and said graft copolymers may be used as polymer additives in lubricating compounds to improve their viscosity index and to disperse the slurry which they may contain.

Graft copolymers of copolymers of olefins or of olefins and

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, and

Lubricating oil compositions containing copolymers of olefins or of

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.

Novel lubricating compositions containing nitrogen containing

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

Copolymers of olefins or of olefins and non-conjugated dienes with

A process for the preparation of new copolymers of olefins or olefins and non-conjugated dienes with unsaturated furan and/or thiophene derivatives, by co-ordination catalysis is disclosed. The copolymers of present invention are characterized by the fact that the monomers derived from furan or thiophene have the formula Where X represents oxygen or sulphur, p equals 0 or 1, and R.sub.1 represents, when p equals 0, a vinyl radical or m being an integer from 0 to 12, and, when p equals 1, an alkenyl radical of from 2 to 20 carbon atoms. These copolymers can replace polyolefins or copolymers of olefins or olefins and dienes, in cases where resistance to ultra-violet radiation is needed.

Copolymers of olefins or olefins and non-conjugated dienes with

A process is described for the preparation of substantially linear, amorphous random copolymers of mono-olefins or mono-olefins and unconjugated dienes with N-unsaturated lactams. At least two mono-olefins containing 2 to 20 carbon atoms, and possibly an unconjugated diene, are placed in contact, in an inert liquid medium at a temperature of between -80.degree. and +150.degree.C, with at least one such N-unsaturated lactam in the form of a complex with a Lewis acid, in the presence of a co-ordination catalyst system, until a copolymer forms. The resulting copolymers can be vulcanized, and among other properties have improved adherence to metal surfaces.

Process for the preparation of random copolymers of mono-olefins or of

A process is described for the preparation of substantially linear, amorphous random copolymers of mono-olefins or mono-olefins and unconjugated dienes with unsaturated nitrogen derivatives selected from N-vinylimidazoles and N-vinylimidazolines and compounds derived from them by substitution, for the hydrogen atoms fixed to the carbons in the heterocycle, of hydrocarbon or aminohydrocarbon radicals. At least two mono-olefins containing 2 to 20 carbon atoms, and possibly an unconjugated diene, are placed in contact, in an inert liquid medium at a temperature of between -80.degree. and +150.degree.C, with at least one of these nitrogen derivatives in the form of a complex with a Lewis acid, in the presence of a co-ordination catalyst system. The resulting copolymers can be vulcanized, and among other properties have excellent adherence to metal surfaces.

Growing community of inventors

Pau, France

Gilbert Marie