Abstract: The invention relates to a two-layer composite material comprising a metal foil and an adhesive layer.The adhesive layer is formed of a mixture of two compounds A and B, compound A being a copolymer of an aliphatic monoolefin and a monoethylenically unsaturated carboxylic acid which has good adhesion for the metal foil and the container, and compound B being a compound adapted to reduce the adhesion of compound A for the metal foil and/or the container.Said composite material is intended in particular for the fabrication of caps serving as closures for containers.

Abstract: The invention relates to a process for the preparation of suspensions of at least one polymer, said process comprising as a first step the preparation of a first suspension of at least one polymer in an organic liquid by chilling a solution of said polymer.In accordance with the invention, there is added to the first polymer suspension in a second step a powder of at least one polymer, which may be the same as or different from the first.Use of said process in the production of two-layer composites formed of an aluminum sheet and a polymer layer.

Abstract: The invention relates to a process for the separation of a hydrocarbon charge into a fraction which precipitates at the operating temperature and a fraction which remains liquid at that temperature.This process is of the incremental-dilution type and entails the use of a solvent whose composition changes at least once in the course of the various dilutions and of an antisolvent whose proportion in the solvent diminishes from at least one of the dilutions to the next dilution.Application: Dewaxing of oils.

Abstract: These catalysts comprise:A refractory oxide-mineral carrier;a halogen element, present in combined form; and,in free or combined form,(a) a platinum-group metal, and(b) tin.They are characterized in that they contain, moreover, a metal from groups Ia and IIa of the periodic table of the elements.Specifically, said metal from groups Ia and IIa may be sodium, lithium, potassium, calcium or barium.

Abstract: An improved method of depositing zirconium on a refractory oxide-mineral carrier.Said method comprises contacting the refractory-oxide mineral carrier with a solution of a least one complex zirconium ion, the latter being formed by means of at least one organic acid and/or a salt of an organic acid.Also carriers and catalysts prepared by said method.

Abstract: These catalysts comprise: A refractory oxide-mineral carrier; a halogen element, present in combined form; and, in free or combined form,(a) a platinum-group metal, m1(b) tin,and additionally a metal, M1, from groups Ia and IIa of the periodic table of the elements in such an amount that: 0.2.ltoreq.M2/M1.ltoreq.10.Specifically, said metal from groups Ia and IIa may be sodium, lithium, potassium, calcium or barium.

Abstract: Heat, particularly solar heat, is stored by a eutectic composition containing at least one saturated aliphatic hydrocarbon and at least one fatty acid having at least 10 carbon atoms.

Abstract: Dienic and/or aromatic hydrocarbons are separated from hydrocarbon fractions employing known liquid-liquid extraction and/or extractive distillation procedures and at least one sulfonamide solvent conforming to the general formula ##STR1## wherein R', R" and 4'" can be linear or branched, saturated or unsaturated, aliphatic groups possessing from 1 to 18 carbon atoms, wherein two or three of groups R', R" and R'" can be identical, wherein one of the groups R" and R'" can be replaced with a hydrogen atom, and wherein at least one of groups R', R" and R'" is unsaturated.

Abstract: Apparatus for distribution of particulate matter in a tank or similar enclosure, comprising a feed hopper, a discharge conduit integral with the hopper, a motor-driven rotating shaft disposed axially of the outlet opening of the conduit, and downstream of said outlet opening is at least one fairly soft deflecting means carried on the shaft and articulated thereto so as to diverge angularly by the effect of the centrifugal force when driven in rotation. The apparatus is for use particularly in charging a chemical reactor with catalyst particles and in the storage of grains in silos.

Abstract: Hydrocarbon isomerization catalysts comprising typically refractory mineral oxide carrier such as alumina and a halogen element present in combined form, together with, in the free or combined state:A platinum-group metal;second element from the group consisting of titanium, zirconium, tungsten and molybdenum; anda metal halide such as AlCl.sub.3.

Abstract: Process for, and composites made by, coating a polymer layer onto a support, obtained by quenching a solution of the polymer to form a polymer suspension, by spreading the suspension on the support, and thereafter eliminating the solvent. The resulting coating of polymer preferably may thereafter be fused. Application of said process to the production also composites comprising an aluminum film and a film thermally bonded to said support by a thin intermediate layer of a copolymer formed of acrylic acid grafted with polyethylene or polypropylene, said layer having been applied by the foregoing process.

Abstract: Catalysts particularly useful for hydroreforming and isomerization of hydrocarbons formed of a refractory mineral oxide carrier having a halogen in combined form and the following metals in free or combined state:(a) A metal from the platinum group (0.02 to 2%);(b) tin (0.02 to 2%); and(c) at least one metal selected from the group of scandium, yttrium, thorium, uranium, and the rare earths metals (0.01 to 5%)--said percentages being based upon the total weight of the catalyst, said catalyst preferably having platinum and chlorine. Also the use of said catalyst in the aforementioned hydrotreatments.

Abstract: The invention relates to anti-fouling agents capable of decreasing the fouling of equipment in contact with a hydrocarbon charge.These agents comprise at least one compound selected from the group consisting of substances having the formula: ##STR1## where R and R' are linear or branched alkyl radicals having between 4 and 12 carbon atoms and where M is a metal atom of Groups IA and IIA of the Periodic Table, withn=1, when the metal M is a metal of Group 1A, andn=2, when the metal M is a metal of Group IIA.An example of such an agent is sodium di-2-ethylhexylsulfosuccinate.

Abstract: The improvement of the preferred Pt-Sn on alumina bimetallic catalyst (and similar catalysts) for hydrotreatment of hydrocarbons, comprising the catalyst further containing silicon in combined form.

Abstract: Hydrocarbon isomerization catalysts comprising typically refractory mineral oxide carrier such as alumina and a halogen element present in combined form, together with, in the free or combined state:a platinum-group metal;second element from the group consisting of titanium, zirconium, tungsten and molybdenum; anda metal halide such as AlCl.sub.3.

Abstract: The preparation of hydrogen reserves by mixing magnesium with at least one other appropriate element, compacting the mixture obtained, and hydrogenating it. Such additional element includes at least one element selected from the group consisting of group IIIB, including the rare earths, and groups IVB, VIB, VIIB, VIII, and IA of the periodic table.In particular, the mixture is subjected to a heat treatment between the compacting and hydrogenation steps.Such reserves prepared have reversible capacities even at moderate temperatures.

Abstract: In a combined process for the storage and production of hydrogen from a hydrogen reserve containing magnesium in the free or combined state, said process consisting of storing the hydrogen in the supply, decomposing the supply to produce hydrogen, and reconstituting the supply of hydrogenation; the use of a dope comprising two elements in the free or combined state selected from the group consisting of cerium, nickel, titanium and molybdenum.Said process may be applied to hydrogen reserves used to fuel internal-combustion engines and for similar applications.

Abstract: A process for desalting crude petroleum comprises breaking down a stable emulsion of water and crude petroleum when formed in a desalter, by injecting a demulsifying agent, such as di-2-ethyl hexyl sulphosuccinate, into the desalter at a predetermined level, when the sample taken at this level contain a predetermined content of stable emulsion.An apparatus for carrying out this process continuously is also included.

Abstract: N-substituted acrylamidines having the general formula: ##STR1## in which R.sub.1 is an isopropyl group, R.sub.2 and R.sub.3 each is hydrogen, ethyl, propyl, butyl, pentyl, octyl, or octadecyl. The acrylamidine is copolymerized with at least one ester of acrylic and/or methacrylic acid esters, and the copolymer has use as an oil additive and for the manufacture of molded articles, paints and adhesives.

Abstract: Method of utilizing lithium borohydride for the storage and generation of hydrogen where the lithium borohydride is thermally decomposed to generate hydrogen and the remaining decomposition products (contaning boron in free or combined form and lithium in free or combined form) are hydrogenated from a separate source of hydrogen so as to reconstitute at least partially the composition as a hydrogen reserve. A further embodiment contemplates the utilization of aluminum in the composition which lowers the reconstitution temperature and increases the hydrogen capacity of the hydrogen reserve.