Abstract: A process for forming a stable and processable polymer comprised of methacrylonitrile (10 to 80 percent) and acrylonitrile (20 to 90 percent) by controlling the ratio of the monomers in the reaction mixture.

Abstract: This invention relates to a process for the production of a polyoxyalkylene derivative of a phenolic resin, by reacting under base-catalyzed conditions the phenolic resin with the appropriate alkylene oxide(s) so that the polyoxyalkylation is carried out by: A) using a phenolic resin which has a water content of less than 0.5% w/w, B) reacting the phenolic resin initially with about one mole of the alkylene oxide(s) per mole of the resin in the absence of a base catalyst in an inert atmosphere at a temperature below 140.degree. C. until the partial pressure of the alkylene oxide(s) reactant is substantially neutralized, and C) reacting the product from step (B) above with the remainder of the alkylene oxide(s). These derivatives are good emulsifiers and demulsifers.

Abstract: The flame luminosity of a methanol fuel is appreciably enhanced by the addition thereto of at least one flame luminosity enhancing agent selected from the group consisting of azine dye, triarylmethane dye, fluorescein dye, imine dye and anthraquinone dye, said dye excluding any metal component whose combustion product(s) tend to cause excessive wear in an engine operated with the fuel composition or tend to significantly interfere with normal operation of such engine or any of its associated systems, the flame luminosity of the fuel composition during burning being appreciably enhanced relative to the flame luminosity of the same burning fuel composition but to which no flame luminosity enhancing agent has been added.

Abstract: A method for inhibiting the formation of scale in waters having a high barium content and low pH comprises the addition of an aqueous solution of a phosphonate of formula: ##STR1## wherein Z=--CHR.sup.1 PO.sub.3 R.sub.2R=H, CH.sub.3, C.sub.2 H.sub.5 or MR.sup.1 =H, CH.sub.3, CR.sub.3, C.sub.6 H.sub.5, SO.sub.3 H.sub.2M=alkali metal or ammonium ionn=2-6, preferably 2-4m=2-6, preferably 2-4a=2-10, preferably 2-4b=2-10, preferably 2-6x=0-6, preferably 0-3y=0-6, preferably 0-2provided that when y=0 at least one of n or m is greater than 2.The phosphonates may be present in the form of a fully or partially neutralised salt and may be injected into production fluids obtained from an underground reservoir or injected into the reservoir via a wellbore as part of a squeeze technique.

Abstract: Disclosed is a method for ammoxidizing C.sub.3 to C.sub.5 mono-olefins to .alpha.,.beta.-mono-unsaturated acyclic nitriles having 3 to 5 carbon atoms and HCN by introducing such mono-olefins molecular oxygen and ammonia into a reaction zone into vapor phase contact with a solid ammoxidation catalyst, wherein the mol ratio of introduced molecular oxygen and ammonia to said introduced mono-olefin is at least 1.5 and 1.0, respectively, wherein said catalyst contains the elements and proportions indicated by the empirical formula:V1Sb.sub.a M.sub.m N.sub.n O.sub.xwherea=0.5 to 2M=one or more of: Sn, Ti, Fe, and Gam=0.05 to 3, usually at least 0.1 and at most 1N=one or more of: W, Bi, Mo, Li, Mg, P, Zn, Mn, Te, Ge, Nb, Zr, Cr, Al, Cu, Ce, Bn=0.0 to 0.5,and wherein the preparation of the catalyst includes contacting in an aqueous dispersion a vanadium compound and an antimony compound while said vanadium is in solution.

Abstract: A process for depositing a coating on a filament, which comprises heating the filament and passing the heated filament through a deposition chamber containing gases which on contact with the hot filament deposit the coating; characterized in that said gases comprise chloroform and a hydrocarbon having I to 6 carbon atoms, a carbon coating being produced.

Abstract: A process for fabricating multilayered high barrier film products providing gas and moisture barrier properties is provided. The film products comprise at least a first polymer film having low permeability to moisture and a polymer blend film containing a gas barrier polymer and a second polymer functionalized for compatibility with the gas barrier polymer and so as to allow the polymer blend film to adhere to the first polymer film. A method for the preparation of multilayered high barrier film products includes the steps of forming a gas barrier polymer film from a polymer blend containing a gas barrier polymer and a second polymer and, bonding a moisture barrier polymer film to at least one side of the gas barrier film.

Abstract: Olefins such as propylene and isobutylene are converted to the corresponding unsaturated nitriles, acrylonitrile, and methacrylonitrile, respectively, by reacting a mixture of the olefin, ammonia, and molecular oxygen-containing gas in the presence of a catalyst containing the oxides of molybdenum, bismuth, iron, cobalt, nickel, and chromium, and either phosphorus or antimony or mixtures thereof, and an alkali metal or mixture thereof, and optionally one element selected from the group of an alkaline earth metal, a rare earth metal, niobium, thallium, arsenic, magnesium, zinc, cadmium, vanadium, boron, calcium, tin, germanium, manganese, tungsten, tellurium, or mixtures thereof.

Abstract: Palladium complexes having the general formula Pd(R'CO.sub.2).sub.2 X where R' is C.sub.1 to C.sub.10 alkyl or C.sub.6 to C.sub.10 aryl and X is a chelating ligand of formula (R.sup.2).sub.2 PYP(R.sup.2).sub.2 where the R.sup.2 groups are independently selected from C.sub.1 to C.sub.4 alkyl, phenyl or alkoxy substituted phenyl, and Y is --(CH.sub.2).sub.n -- where n=2 to 4 are provided. The complexes may be prepared by reacting the compounds Pd(R'CO.sub.2).sub.2 and (R.sup.2).sub.2 PYP(R.sup.2).sub.2 together in an aromatic solvent at a temperature of less than 60.degree. C. in amounts such that the molar ratio of the two compounds is in the range 1.2:1 to 1:1.2.

Abstract: Disclosed is a process for the partial oxidation of propane to yield acrylic acid, propylene, acrolein and acetic acid by contacting propane in admixture with a molecular oxygen-containing gas in a reaction zone with an oxidic solid catalyst that1) contains the components and proportions represented by the empirical formulaBi.sub.b Mo.sub.c V.sub.v A.sub.a D.sub.d E.sub.e O.sub.xwhereinA is one or more of K, Na, Li, Cs and Tl,D is one or more of Fe, Ni, Co, Zn, Ce and La,E is one or more of W, Nb, Sb, Sn, P, Cu, Pb, B, Mg, Ca and Sr,a, d and e are each zero-10b is 0.1-10c is 0.1-20v is 0.1-10c:b is from 2:1 to 30:1v:b is from 1.5:1 to 8:1and2) is made by performing a bismuth molybdate containing composition having at least 0.67 atoms of Mo per atom of Bi, before combining with any vanadium compound.

Abstract: A process is disclosed which limits the corrosion of the materials of construction of a wet oxidation system treating wastewaters. The process is particularly useful in the wet oxidation treatment of ammonium sulfate containing wastes such as acrylonitrile wastewaters. The wastewater is mixed with an oxygen containing gas such that a substantial residual oxygen gas concentration is maintained from before the stream-gas mixture is heated for wet oxidation until after the oxidized stream-gas mixture is cooled and separated. Preferably, in the treatment of acrylonitrile waste water the shutdown procedure comprises cooling said waste stream by introducing an aqueous liquid substantially free of organic impurities and containing a basic material.

Abstract: A process for producing a dialkyl ester (i.e. BTDE) from its corresponding dianhydride (i.e., BTDA) comprising mixing the dianhydride, an organic solvent, solid catalyst and an alcohol capable of reacting with the dianhydride stirring the solution until the dianhydride and alcohol have reacted to form the dialkyl ester, separating the dialkyl ester from the catalyst and drying the ester to form a solid paticulate product. The product has a purity of over 85%.

Abstract: The flame luminosity of a methanol fuel is appreciably enhanced by the addition thereto of at least one azo dye flame luminosity enhancing agent.

Abstract: Improved inorganic ceramic papers comprising heterogeneous grades of ceramic fibers, namely small, high surface area fibers and at least one larger, lower surface area ceramic fiber are bonded into a matrix with the aid of an inorganic binder system having at least one metal oxide with an average particle size below 200 nm. Multiple different grades of inorganic ceramic fibers and small particle size inorganic binders impart good tensile strength and flexibility characteristics in the same sheet.

Abstract: Olefins such as propylene and isobutylene are converted to the corresponding unsaturated nitriles, acrylonitrile, and methacrylonitrile, respectively, by reacting a mixture of the olefin, ammonia, and molecular oxygen-containing gas in the presence of a catalyst containing the oxides of molybdenum, bismuth, iron, cobalt, nickel, and chromium, and either phosphorus or antimony or mixtures thereof, and an alkali metal or mixture thereof, and optionally one element selected from the group of an alkaline earth metal, a rare earth metal, niobium, thallium, arsenic, magnesium, zinc, cadmium, vanadium, boron, calcium, tin, germanium, manganese, tungsten, tellurium, or mixtures thereof.

Abstract: A reinforced metal composite comprised of a mixture of fused yttria and a metal matrix selected from the group consisting of Ti, Nb, Fe, Co, Ni, Ti alloy, Co based alloys aluminides of Ti, aluminides of Ni, aluminides of Nb and their mixtures. Preferably, the metal matrix is Ti or a Ti alloy which has a low Cl content (e.g. less than 0.15 wt. % Cl).

Abstract: A thermally conductive diamond metal composite comprising 5 to 80 volume percent diamond particles having a particle size ranging from about 1 to 50 .mu.m and a metal matrix comprising a thermally conductive metal. Preferably, a fine metal powder having particle size below 53 microns is utilized as the source for the metal matrix.

Abstract: Olefins such as propylene and isobutylene are converted to the corresponding unsaturated nitriles, acrylonitrile, and methacrylonitrile, respectively, by reacting a mixture of the olefin, ammonia, and molecular oxygen-containing gas in the presence of a catalyst containing the oxides of bismuth, molybdenum, iron, nickel and magnesium, at least one element selected from the group comprising potassium and cesium, and optionally one element selected from the group comprising cobalt, phosphorus, manganese, tellurium, sodium, cerium, chromium, antimony and tungsten wherein the sum of cesium and potassium is at least 0.1 to 0.4.

Abstract: A slurry of oil-impregnated cuttings from the use of oil based drilling mud and other unwanted slurries and fluids may be injected into the annulus of a sub-sea well and then into a porous formation through which the well has passed using apparatus on a guide base surrounding the sub-sea well head. The guide base comprises a coupling for a pipe extending down from the drilling rig, a one-way isolation valve and pipework leading to the outermost housing of the well. The outermost housing has ports to carry the slurry into the outermost annulus and inner housings may also have ports to carry this slurry into inner annuli. Inter housings also have a one-way check valve to control the injection. The guide base may have a cement circulation pipework and a cement and dump valve. The guide base may also be a retrievable base so that the injection apparatus may be reused.

Abstract: A thermally conductive diamond metal composite consisting essentially of 5 to 80 volume percent diamond particles having a particle size ranging from about 1 to 50 .mu.m and a metal matrix comprising a thermally conductive metal. Preferably, a fine metal powder having particle size below 53 microns is utilized as the source for the metal matrix.