Abstract: A low viscosity synthetic lubricant is prepared by polymerizing 1-butene to an oligomer containing a number average of about 8 to 18 carbon atoms and copolymerizing the oligomer with an alpha-monoolefin having 8 to 18 carbon atoms to produce a copolymer having an average of about 20 to 40 carbon atoms. Both polymerization reactions are catalyzed by a combination of boron trifluoride and a proton donor promoter. The synthetic lubricant is preferably stripped to remove lower boiling components, such as oligomers having 20 carbon atoms or less, and optionally hydrogenated for improved stability.

Abstract: A C.sub.4 olefinic cracking cut is subjected first to catalytic polymerization and then to fractionation: the resultant isobutene dimers and trimers fraction is hydrogenated, while the remainder is alkylated. The resultant product is a gasoline of high isooctane content.

Abstract: Hydrogenated dimers of C.sub.12-18 alpha olefins (e.g. 1-tetradecene) made using a Friedel-Crafts catalyst (e.g. BF.sub.3 promoted with water) have low pour points, low volatility and viscosities which make them suitable as crankcase lubricants for internal combustion engines.

Abstract: A method of producing liquid hydrocarbons useful e.g. as lubricants or base oils for cosmetics is disclosed. The method comprises copolymerizing in the presence of an aluminum halide catalyst (i) at least one alpha-olefin having a terminal vinyl group and containing 6 to 14 carbon atoms, (ii) isobutylene and/or diisobutylene, and optionally (iii) 1-butene, coexisting in a specified ratio, and optionally hydrogenating the resulting polymer.

Abstract: Disclosed is a process for the removal of hydrogen from streams comprising olefinic compounds, such as streams from a polymerization reactor. At least a portion of the olefinic compounds are saturated with a substantial portion of the hydrogen present so as to effectively remove hydrogen from the stream. The saturated material formed can be then separated from unreacted olefinic compounds by use of a membrane separator and the olefinic compounds recycled to a polymerization zone for reaction.

Abstract: A cosmetic base material which consists of a synthetic saturated aliphatic hydrocarbon having 24 to 36 carbon atoms, wherein the proton ratio of methyl group to methylene group, that is, CH.sub.3 /CH.sub.2, within the hydrocarbon chain is in the range of from 0.25 to 0.6 and the pour point is in the range of from -55.degree. C. to 10.degree. C.

Abstract: Oligomers are obtained from straight-chain alpha olefins by contacting these with a catalytic system of the binary type, which is composed of an organic metallic compound of aluminum and a haloid acid. Subsequent hydrogenation of the oligomers is carried out in order to remove possible residual unsaturations.

Abstract: A process for making a low viscosity, low volatility .alpha.-olefin oligomer suitable for use as a functional fluid or lubricating oil comprising dimerizing a C.sub.6-12 .alpha.-olefin, reacting the resultant dimer with a C.sub.6-18 .alpha.-olefin in the presence of a Friedel-Crafts catalyst, distilling out volatile components and hydrogenating the residual product.

Abstract: The invention relates to a synthesis process for preparing lubricating oils, according to which a n-olefin cut is subjected to catalytic autocondensation, under controlled conditions, and the reaction mixture is distilled, the bottom product, possibly stabilized to eliminate unsaturations, being the desired lubricating oil having outstanding properties of viscosity index and pour point.