Abstract: Composition for protective coating of metallic surfaces, particularly those used in the automotive industry, which comprises 5 to 20% by weight of a vinylic resin, from 10 to 30% by weight of a plasticizer for the said vinyl resin, from 5 to 15% by weight of bituminous substances, from 0.1 to 1.5% by weight of a thixotropic agent and from 20 to 65% by weight of a filler, and which is applied by spraying on the metallic surfaces.

Abstract: A process for producing a copolymer of styrene and acrylonitrile substantially free of acrylonitrile which comprises copolymerizing styrene and acrylonitrile, and optionally in the presence of an elastomer, and treating the resulting copolymer with an aqueous solution of a sulphur compound selected from the group consisting of alkaline sulfides and alkaline disulfides.

Abstract: A process for the oxidation of aliphatic secondary alcohols having no tertiary hydrogen on a carbon atom in alpha position relative to the carbon atom linked to the hydroxyl group, with selective formation of ketones having the same number of carbon atoms, said process comprising contacting said alcohols with a cobalt salt having a trivalent cobalt to total cobalt ratio of between 0.5 and 1, the concentration of said cobalt salt being at least 0.05 mole per liter of reaction mixture, at a temperature between 20.degree. and 120.degree. C.

Abstract: A process for the oxidation, in the presence of a cobalt salt, of straight-chain paraffinic compounds of general formula ##STR1## wherein n is an integer from 1 to 16 inclusive, Y.sup.1 is hydrogen or a substituent selected from the group consisting of X, CN, COOR and OCOR, wherein X is a halogen and R a hydrocarbon radical containing from 1 to 6 carbon atoms inclusive and Y.sup.2 is selected from the group consisting of Y.sup.1, CHX.sub.2 and CX.sub.3, and wherein Y.sup.1 is hydrogen when Y.sup.2 is CX.sub.3 or is X when Y.sup.2 is selected from the group consisting of CX.sub.3 and CHX.sub.2, with the selective formation of monoketones, having the same number of carbon atoms as the starting compound and of the general formula: ##STR2## wherein n, Y.sup.1 and Y.sup.2 are as defined above, the process comprising contacting said paraffinic compounds with a cobalt salt having a trivalent cobalt to the total cobalt ratio between 0.5 and 1.

Abstract: A process for the production of ethylphenol comprising the oxidation of diethylbenzene into diethylbenzene monohydroperoxide, withdrawing the reaction mixture, separating the unconverted diethylbenzene therefrom to obtain a hydroperoxide concentrate containing at least 40% of diethylbenzene monohydroperoxide, mixing said concentrate with a solvent selected from the group consisting of the lower molecular weight aliphatic alcohols and ketones, decomposing said hydroperoxide by intimate contact with a strong acid, hydrogenating the decomposition mixture and recovering ethylphenol from the hydrogenated mixture.

Abstract: A process for producing a copolymer of styrene and acrylonitrile substantially free of acrylonitrile which comprises copolymerizing styrene and acrylonitrile and treating the resulting copolymer with an aqeuous solution of a sulphur compound selected from the group consisting of alkaline sulfides and alkaline disulfides.

Abstract: A process for recovering and separating substantially pure ethylphenol and substantially pure diethylbenzene from a mixture resulting from the decomposition of diethylbenzene monohydroperoxide and consisting essentially of diethylbenzene, ethylphenol and oxygenated by-products thereof, said process comprising distilling said mixture in a first distillation step operated under reduced pressure to separate a distillate comprising essentially diethylbenzene from a first residue comprising ethylphenol and the oxygenated by-products of said mixture, withdrawing said residue and distilling said first residue in a second distillation step operated under reduced pressure to separate a distillate consisting essentially of ethylphenol from a second residue containing from 30 to 40 mole % of ethylphenol in admixture with said oxygenated by-products, withdrawing said second residue and mixing it with the distillate from the first distillation step, treating the resulting mixture with an aqueous alkaline solution to form

Abstract: A process for preparing spheroidal silica-alumina particles containing alumina in an amount at least equal to that of silica, comprising dispersing as droplets into a hot and practically water-immiscible fluid, an aqueous mixture comprising an alkali silicate, alumina hydrogel, perchloric acid and a water-soluble monomer whose uncross-linked polymer is water-soluble or forms a gel, alkali silicate and alumina hydrogel being used in proportions corresponding to 0.5 to 50% by weight of SiO.sub.2 and 99.5 to 50% by weight of Al.sub.2 O.sub.3, and maintaining the droplets of the mixture in the fluid until a substantial polymerization of the monomer occurs.

Abstract: A process for preparing silico-alumina beads containing silica and at least an equal amount of alumina comprising dispersing as droplets into a hot and practically water-immiscible fluid, an aqueous mixture which comprises alumina hydrogel, alumina hydrosol as alumina precursors, an alkali silicate and silica gel as silica precursors, the amount of alkali silicate, based on SiO.sub.2, not exceeding 20% of the total weight of SiO.sub.2 and Al.sub.2 O.sub.3, and the total amount of alkali silica and silica gel, based on SiO.sub.2, not exceeding 50% of the total weight of SiO.sub.2 and Al.sub.2 O.sub.3, and at least a water-soluble monomer whose uncross-linked polymer is water-soluble or forms a gel, and maintaining the droplets of the aqueous mixture in the hot fluid until substantial polymerization of said monomer occurs.

Abstract: A process for preparing catalysts in the form of beads comprising at least a catalytic agent and an alumina carrier, said process comprising polymerizing in a hot and substantially water-immiscible fluid, an aqueous mixture which comprises alumina hydrogel, alumina hydrosol and a compound capable of generating a catalytic agent and a water soluble monomer whose uncross-linked polymer is water soluble or forms a gel, such aqueous mixture being dispersed as droplets into the hot fluid, recovering beads from said water-immiscible fluid and drying and calcining said beads.

Abstract: A process for producing catalysts for hydrotreating petroleum fractions, said catalysts containing, after thermal treatment, at least an oxide or a sulphide of a Group VIII metal and at least an oxide or a sulphide of a Group VI B metal and an alumina support, said process comprising preparing said catalyst in the form of beads by agglomeration of alumina by polymerizing, in a hot substantially water-immiscible fluid medium, an aqueous mixture consisting essentially of alumina hydrogel and a water-soluble monomer whose uncrossed-linked polymer is water-soluble or forms a gel, and thereafter dispersing said aqueous mixture in the form of droplets, into said fluid medium in which substantial polymerization of the monomer is carried out.

Abstract: A process for producing catalysts to hydrotreat petroleum fractions containing, after thermal treatment, an oxide or a sulphide of a Group VIII metal and an oxide or a sulphide of a Group VI B metal and a support consisting essentially of alumina, said process comprising preparing said catalyst in the form of beads by agglomeration of alumina by polymerizing in a hot and substantially water-immiscible fluid, an aqueous mixture which consists essentially of alumina hydrogel, alumina hydrosol and a water-soluble monomer whose uncrossed-linked polymer is water-soluble or forms a gel and then by dispersing said mixture as droplets, in a polymerization zone.

Abstract: A process for preparing spheroidal catalyst particles having an alumina support, which comprises polymerizing, in a substantially water-immiscible, hot fluid medium, an aqueous mixture which comprises alumina hydrogel, a compound capable of generating an active catalytic agent and a water soluble monomer whose uncross-linked polymer is water soluble or forms a gel, said aqueous mixture being dispersed in the form of droplets into the hot fluid medium wherein substantial polymerization of said monomer is performed.

Abstract: Disclosed is a process for the preparation of high-impact vinyl aromatic polymers by mass pre-polymerizing a vinyl aromatic hydrocarbon in the presence of a rubber, and suspension polymerizing the mass pre-polymer in the presence of hydroxyapatite and at least one ethoxysulphate of the formula RO (C.sub.2 H.sub.4 O).sub.x SO.sub.3 M, wherein R is an alkyl radical containing from 10 to 16 carbon atoms, x is from 2 to 6, and M is Na, K, N, NH.sub.4, an amine group, or an alkanol amine group.

Abstract: A process for producing ethylphenol comprising reacting in liquid phase, diethylbenzene with a molecular oxygen containing gas, at a temperature between 100.degree. and 180.degree.C, until 5 to 30% of the diethylbenzene feed is converted into diethylbenzene hydroperoxide, withdrawing the reaction mixture, evaporating the unconverted diethylbenzene therefrom to obtain a concentrate containing at least 40% of diethylbenzene hydroperoxide, and recycling the unconverted diethylbenzene to the oxidation stage, mixing the diethylbenzene hydroperoxide concentrate with a solvent selected from the group consisting of low molecular weight aliphatic alcohols, ketones and mixtures thereof, decomposing said hydroperoxide by intimate contact with a strong acid which is used in an amount of between 0.

Abstract: A process for preparing aluminium oxide beads from alumina hydrogel, which comprises polymerizing, in a hot and substantially water-immiscible fluid, an aqueous mixture comprising alumina hydrogel and alumina hydrosol and a water-soluble monomer whose uncross-linked polymer is water-soluble or forms a gel, this mixture being dispersed as droplets into a hot fluid in which substantial polymerization of the monomer occurs.

Abstract: A process for preparing aluminum oxide beads from alumina hydrogel, comprising polymerizing in a hot and substantially water-immiscible fluid, an aqueous mixture which contains alumina hydrogel and a water soluble monomer whose uncross-linked polymer is water soluble or forms a gel, this mixture being dispersed as droplets into said fluid in which substantial polymerization of said monomer is performed.

Abstract: A lubricating composition for 2-stroke, internal combustion engines comprising 90 to 97% by weight of a lubricant mixture comprising 15 to 80% by weight of a polymer selected from the group consisting of hydrogenated and non-hydrogenated polybutene, polyisobutylene and mixtures thereof, with a mean molecular weight ranging from 250 to 2000, and 0.5 to 10% by weight of a triglyceride of an unsaturated aliphatic carboxylic acid containing 18 carbon atoms, and the remainder being a lubricating oil, and 3 to 10% by weight of conventional lubricating oil additives for 2-stroke engines.

Abstract: A process for the oxidation of a diethylbenzene feed which comprises passing a molecular oxygen containing gas into contact with said feed at a temperature between 100.degree. and 180.degree.C in the presence of a superbasic sulfonate of an alkaline-earth metal in an amount within the range of 0.01 to 5% by weight of the diethylbenzene feed.

Abstract: A plasticized polyvinyl chloride composition and method for its preparation, the plasticized polyvinyl chloride composition comprising polyvinyl chloride and an organic phosphate selected from the group consisting of the phosphates of the formula (C.sub.6 H.sub.5).sub.x (m-C.sub.2 H.sub.5 C.sub.6 H.sub.4).sub.y PO.sub.4, wherein x is 0,1 or 2 and y is 1,2 or 3, x + y being 3, and mixtures of said phosphates, the amount of said organic phosphates being within the range of 20 to 100 parts by weight per 100 parts by weight of polyvinyl chloride.