Abstract: A process is provided for the polymerization of olefins in the gas phase wherein olefins are contacted with a catalyst system consisting of an active solid hydrocarbon having been prepared by forming a pulverulent composition by mixing a transition metal component, a porous organic or inorganic solid support and an organometallic compound of the organo-Al, organo-Mg or organo-Zn type, and polymerizing a controlled amount of one or more C.sub.2 to C.sub.12 olefins in the gas phase in contact with the pulverulent composition with a specific hourly conversion of the olefins to produce the active solid hydrocarbon.

Abstract: Heteropolymetallic clusters of the formula Pd.sub.2 (Fe).sub.x (CO).sub.4 [CO(NO).sub.2 ].sub.y [bis(diphenylphosphine)methane].sub.2 wherein x is 1 or 2 and y is 0 or 1; x=2 when y=1 and x=1 when y=0; to the method of making such clusters by reacting Pd.sub.2 Cl.sub.2 [bis(diphenylphosphine)methane] with MnFe(CO).sub.3 Z wherein M is an alkaline metal and Z is CO (n=2) or NO (n=1); and to the novel catalysts formed utilizing said clusters.

Abstract: A process for the removal of gases dissolved in an aqueous solution containing up to about 15% by weight of ethylene oxide and up to about 0.5% by weight of dissolved gases which are selected from carbon dioxide and at least one other compound that is normally gaseous, comprising contacting said aqueous solution of ethylene oxide with water and at least one gas selected from one of said dissolved normally gaseous compounds; other than carbon dioxide or oxygen, for a time and at a temperature and pressure sufficient to effect substantially complete removal of said dissolved gases; said contact taking place in a separation column having an upper and a lower zone and up to 15 theoretical placed in each zone with said aqueous solution of ethylene oxide being added intermediate said zones, said gas being added to the bottom of said lower zone, and said water being added to the top of the upper zone.

Abstract: Unsaturated polyamide polymers are provided which are comprised of a polyamide chain terminated at one end by a group containing at least one double bond. The polymers are particularly useful in the preparation of molded object coatings, water tight joints, grafting onto thermoplastic polymers or copolymers, and the like.

Abstract: Low melting point compositions, comprising a mixture of diisocyanate isomers having the diphenylethane structure, and containing by weight about:35 to 55% of 2,4' isomer,15 to 40% of 4,4' isomer,10 to 25% of 2,2' isomer,3 to 10% of 3,4' isomer, and3 to 8% of 2,3' isomer;to the method of making such compositions by the nitration of aromatic diphenylethane rings, followed by a hydrogenation and phosgenation; and polyurethanes formed utilizing such compositions.

Abstract: Process for the decomposition of complexes of orthobenzoyl-benzoic acid, hydrogen fluoride, and boron trifluoride in which the complex is subjected to the action of sulfuric acid in a concentration of at least about 96% by weight or to the action of an oleum, under atmospheric pressure or under a pressure lower than atmospheric pressure.

Abstract: Process for the preparation of aminophenols with an increased proportion of the meta isomer comprising reacting hydrogen peroxide in a superacid liquid medium with anilines, N-alkylaniline, or N,N-dialkylanilines for a time and a temperature, ranging from about -50.degree. C. to 0.degree. C., sufficient to form the aminophenols.

Abstract: A lubricant composition comprising a lubricating oil having dispersed therein particles of lithium fluoride, calcium fluoride, and barium fluoride, or mixtures thereof.

Abstract: Disclosed is a continuous catalytic process for the preparation of hexafluoroacetone comprising reacting in a first fluorination step a mixture of hydrofluoric acid and a chlorofluoroacetones recyclate, then in a second fluorination step, a mixture containing the effluent issuing from the first step and fresh hexachlorofluoroacetone, on a catalyst comprising gamma alumina impregnated with chromium sesquioxide Cr.sub.2 O.sub.3 in an amount of 1.5 to 4 atoms of chromium per liter of alumina and activated between 300.degree. C. and 400.degree. C. by means of a mixture of hydrofluoric acid and 1,1,2-trichloro-1,2,2-trifluoro-ethane.

Abstract: There is disclosed a continuous catalytic process for the preparation of trifluoroacetaldehyde through fluorination in the gaseous phase of trichloroacetaldehyde in a single reaction zone at a temperature between 230.degree. C. and 260.degree. C., on a catalyst comprising a gamma alumina impregnated by Cr.sub.2 O.sub.3 in an amount of 1.5 to 4 atoms of chromium per liter of alumina and activated at a temperature between 300.degree. C. and 400.degree. C. by a mixture of hydrofluoric acid and 1,1,2-trichloro-1,2,2-trifluoro-ethane.

Abstract: Decane-1,10-diisocyanates corresponding to the formula ##STR1## wherein R.sub.1 is an alkyl or cycloalkyl radical, and R.sub.

Abstract: Apparatus for cutting thermoplastic filaments or rods with multiple blades in a granulation head of the type which is completely immersed in a cooling liquid, the blades acting with an extrusion die having extrusion orifices arranged in one or more rings centered on the axis of the die and coaxial with a rotary cutting means carrying cutting blades, wherein the cutting blades have an extrados surface inscribed within a regular convex polygon having an apex angle of 7.degree. or less and an intrados surface having a point of inflection situated at a distance between one quarter and one half of the width of the blade, the remainder of the intrados beyond the inflection point having a profile pattern similar to that of the extrados, and methods for chopping thermoplastics with such apparatus.

Abstract: Waste water to be analyzed is brought into a reactor continuously supplied with samples of activated sludge taken from the biological treatment plant; oxygen is also constantly supplied to the reactor and the content of oxygen dissolved inside the reactor is measured in order to automatically regulate the waste water flow admitted into the reactor in relation the measured value of dissolved oxygen content and thus keep the load applied to the reactor substantially constant; a toxicity alarm is released in case of abnormal reduction of respiration when the waste water admission flow is maximum.

Abstract: A homogeneous composite material comprising at least one external layer of thermosetting polymer, a layer of lightened thermoplastic polymer, and intermediate between the two layers, a homogeneous layer formed by polymerizing a monomer which is a diluent for the said lightened polymer; such that the monomer polymerizes to form an intimate blend at the interface of said polymers. The invention also comprises a process for producing the above said composite material.

Abstract: Process for the preparation of an active solid hydrocarbon which can be used to polymerize olefines.This process comprises forming a pulverulent composition by mixing a transition metal component, a porous organic or inorganic solid support and an organometallic compound of the organo-Al, organo-Mg or organo-Zn type, and polymerizing a controlled amount of one or more C.sub.2 to C.sub.12 olefines in the gas phase in contact with the pulverulent composition with a specific hourly conversion of the olefines to produce the active solid hydrocarbon.The above active solid hydrocarbon can be used, by itself or together with an organometallic cocatalyst, as a catalytic system for polymerization of olefines, in particular in the gas phase.

Abstract: A composition for the alkaline bleaching of textiles during washing comprising a washing product and at least one peroxide derivative of the general formula: ##STR1## where R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are hydrogen, a linear alkyl radical containing from 1 to 12 carbon atoms, a cycloalkyl or branched alkyl radical containing from 3 to 12 carbon atoms, or an aromatic hydrocarbon radical having from 6 to 12 carbon atoms; said radicals being unsubstituted or substituted by chlorine, bromine, fluorine, a nitro group, hydroxy group, alkoxy group, ethylenic derivatives, or carboxylic ester and R.sub.1 and R.sub.2 and/or R.sub.3 and R.sub.4, respectively, capable of forming only a single linear or branched radical having from 3 to 12 carbon atoms and the process of alkaline bleaching using the same.

Abstract: The present invention relates to supported superacidic catalysts comprising C.sub.4 -C.sub.18, preferentially C.sub.6 to C.sub.12, perfluorinated alkanesulfonic acid absorbed on suitable supports, such as fluorinated alumina, alumina silica and other chalcides having bonded thereto subsequently a Lewis acid compound selected from the higher valency fluorides of the elements of Groups IIA, IIIA, IVB, VA or VIB of the Periodic Table. The invention includes a process for catalytic transformation of hydrocarbons.

Abstract: Process for improving the stability of aqueous solutions containing hydrogen peroxide, metal ions and hydrofluoric acid which can be partially in the form of salts, comprising adding to the said solution at least one hydroxide selected from alkali metal hydroxides, ammonium hydroxide, or mixtures thereof in an amount which is insufficient to neutralize all the acidity present. The resultant novel stabilized solutions according to the invention are used in the surface treatment of metals especially of stainless steels.

Abstract: A bath for the simultaneous desizing and bleaching of fabrics comprising hydrogen peroxide, a sequestering agent, an amylase, a surfactant, and a buffer consisting essentially of sodium tetraborate decahydrate. Also, the method for the simultaneous desizing and bleaching a fabric comprising saturating a fabric with the above destarching and bleaching bath, maintaining the saturated fabric for a time and at a temperature sufficient to desize and bleach to the desired degree, and washing the fabric.

Abstract: A process for preparation of a transition metal component of a catalytic system for the polymerization of olefins, wherein an organo-magnesium-aluminum reaction product is formed by bringing into contact, a halogenated, alkylated or alkoxylated magnesium compound with an organo-aluminum compound, then subjecting the reaction product to a chlorination and to a treatment by a compound of a transition metal such as Ti, V, Zr and Cr.As an organo-aluminum compound there is used one or several aluminoxane compounds of the formula ##STR1## wherein R' is an alkyl or from C.sub.1 to C.sub.16, the R"s form together a radical --O-- or designate each a radical R' and n is an integer of from 0 to 20.The transition metal component obtained can be used in combination with a co-catalyst and eventually an electron donor to form a catalytic system apt to polymerize the alpha-olefins.