Abstract: An oriented film structure of improved water vapor transmission rate is prepared from an extruded and stretched mixture of (1) high crystallinity polypropylene (HCPP) having intermolecular stereoregularity greater than 93% and (2) a moisture barrier improving amount of polyterpene resin.

Abstract: The invention relates to a coated film composition comprising:a) a biaxially oriented high density polyethylene (HDPE) film comprising at least 50 wt. % of HDPE having a density of 0.960 or greater; andb) a coating which is derived from the group consisting of polyvinylidene chloride polymer or copolymer, acrylic acid polymer or copolymer, and polyvinyl alcohol polymer (PVOH); and its method of manufacture.

Abstract: A peelable film comprising: (A) a core layer comprising an olefin polymer; (B) a skin layer on at least one surface of the core layer, the skin layer comprising: (i) a blend of a butylene polymer with another olefin polymer; or (ii) a polymer of butylene and at least one other olefin; and (C) a coating layer on the skin layer.

Abstract: A process is provided for synthesis of dialkylcarbonate, e.g., dimethylcarbonate, by reacting an alcohol, e.g., methanol, with a cyclic carbonate, e.g., propylene carbonate, in the presence of a catalyst comprising an alkaline earth metal halide, e.g., magnesium iodide, and a solid support having a high surface area and controlled surface hydroxyl concentration.

Abstract: This invention is a crystallization process for p-xylene recovery. A single temperature crystallization stage is used for producing p-xylene from a feed having an above equilibrium p-xylene concentration, such as from toluene disproportionation.

Abstract: A catalyst precursor is formed by providing in slurry: (1) a carrier, which is porous and in the form of particles, or spheres, preferably particles of a crosslinked polymer, having a particle diameter of about 1 to about 300 microns, a porosity of about 0.001 to about 10 cc/gm, and a surface area of about 1 to about 1,000 m.sup.2 /gm; (2) a metallocene complex having an empirical formulaCp.sub.m MA.sub.n B.sub.pin which Cp is an unsubstituted or substituted cyclopentadienyl group, M is zirconium, titanium, or hafnium; m is 1, 2, or 3 and each of A and B is a halogen atom, hydrogen or an alkyl group, and (3) an anion forming reagent comprising either a borate complex or a borane. An alkyl aluminum compound is used in conjunction with the catalyst as either a cocatalyst or an impurity scavenger.

Abstract: The invention provides a process for alkylating an olefin with an isoparaffin comprising contacting an olefin-containing feed in the presence of a thermally stable composition comprising a non-swellable layered chalcogenide of an element having an atomic number of 4, 5, 12 to 15, 20 to 33, 38 to 51, 56 to 83 and greater than 90, inclusive, said layered metal chalcogenide comprising an interspathic polymeric chalcogenide of an element selected from Groups IB, IIB, IIIA, IIIB, IVA, IVB, VA, VB, VIA, VIIA, and VIIIA of the Periodic Table.

Abstract: A process and catalyst for Shape Selective Hydrocarbon Conversions such as the regioselective disproportionation of toluene to para-xylene wherein hydrocarbon to be converted is passed over a catalytic molecular sieve which is trim selectivated with a reaction stream comprising toluene and a silicon-containing high efficiency p-xylene selectivating agent under toluene conversion conditions. The toluene disproportionation process attains a single-pass para-xylene product over 95% coupled with a toluene conversion of at least 15%. The present invention also includes the highly para-selective catalyst which results from the treatment of a catalytic molecular sieve with a high efficiency p-xylene selectivating agent under the recited conditions.

Abstract: The present invention provides a hydrogenation process for producing diamondoid compounds from a petroleum feedstream containing multiple ring naphthenes comprising the steps of:(a) converting multiple ring naphthenes to alkyl substituted adamantanes in the presence of a zeolite catalyst having a Constraint Index of less than 1 in a first stage to form an intermediate product stream; and(b) selectively cracking non-diamondoid components of said intermediate product stream in the presence of a zeolite having a CI less than or equal to 2 to evolve a final product stream enriched in alkyl substituted adamantanes.

Abstract: Well fluids such as drilling muds, especially useful in offshore drilling, are formulated with a hydrocarbon oil blend of a low viscosity poly alpha-olefin (PAO) such as a low molecular weight oligomer of decene together with a C.sub.10 to C.sub.18 paraffinic hydrocarbon of petroleum origin and a C.sub.10 to C.sub.18 olefin such as dodecene-1 or tetradecene-1. The fluids exhibit good biodegradability and are non-toxic to marine organisms; they also meet viscosity and pour points specifications for formulation into oil based muds.

Abstract: Reaction products of hydrocarbylsuccinic anhydrides, hydroxyl-containing amines and triazoles have been found to be effective antirust, antioxidant, anti-corrosion, antiwear, dispersant/detergent and thermal color stabilizing additives.

Abstract: An improved oxygen barrier layer for coating a substrate, such as a polymeric film. The oxygen barrier is a layer of cross-linked polyvinyl alcohol and glyoxal, which exhibits improved barrier characteristics to the transmission of oxygen. The oxygen barrier is produced by coating a solution of polyvinyl alcohol, glyoxal and tensoactive agent onto at least one side of a substrate adapted for receipt of such solution. The polyvinyl alcohol is thereafter cross-linked in the absence of a catalyst to provide the oxygen barrier.

Abstract: A ex situ selectivated catalytic molecular sieve for enhanced shape selective hydrocarbon conversions in which a catalytic molecular sieve is modified by being exposed to at least two selectivation sequences, each sequence including an impregnation of the molecular sieve with a selectivating agent and a subsequent calcination of the impregnated molecular sieve. The ex situ selectivation method is also described, including the use of aqueous carriers for the selecting agent. Also a method for in situ trim-selectivating the modified catalytic molecular sieve. Also, a method for moderate steaming of the selectivated molecular sieve. Also a method for in situ trim-selectivating the modified catalytic molecular sieve. Also described is the process for shape selective hydrocarbon conversion comprising contacting a hydrocarbon feedstream under conversion conditions with the selectivated molecular sieve.

Abstract: A process for solvent dewaxing petroleum feedstock to separate crystallized wax from lubricant oil by filtration of a wax/oil/solvent mixture. The feedstock is sequentially cooled and mixed with cold polar solvent to form a wax crystal phase and oil-solvent phase, and-the oil-solvent filtrate stream is contacted with solvent permeable selective membrane at low temperature to recover an internal circulating permeate solvent stream and an oil-rich retentate stream containing dewaxed oil product and residual solvent. Improved operation is achieved by splitting the internal circulating solvent stream into a multiple cold solvent recycle streams and injecting a plurality of the cold solvent recycle streams into the waxy petroleum feedstock during sequential cooling and mixing. By initially injecting a cold recycle solvent stream in to the waxy petroleum feedstock at a small temperature differential near the wax crystallization temperature, shock cooling and excess small wax crystal formation is avoided.

Abstract: A multilayer laminated structure comprising an olefin film, preferably a polypropylene film having on a first side, of the olefin film, a highly printable blend of (A) alkylene acrylate copolymer and (B) an interpolymer of an alkyl acrylate, an alkyl methacrylate and an alkyl acrylate acid and a woven or nonwoven reinforcement laminated to a second side of the olefin film. The laminated structure is suitable for envelope stock, packaging film and label stock.

Abstract: A subsurface formation surrounding a borehole is hydraulically fractured when a fracturing fluid is supplied down through the borehole by way of a fluid injection line from the surface of the earth. Pressure drop is measured along the injection line as fracturing fluid flows therethrough. Both fracture closure and minimum in-situ stress are determined at the point where such pressure drop is equal only to a hydrostatic pressure difference along the injection line.

Abstract: Tolyltriazole derived esters of tri, tetra, and poly carboxylic acids or an acid generating compound have been found to be effective lubricity additives for lube oils, greases, or distillate fuels.

Abstract: A method for plugging a zone of a subterranean formation to block flow therethrough. A specific plugging solution comprised of an allyl monomer and an initiator is injected into the zone where it is allowed to set at an elevated temperature to harden and form a flow-blocking solid. The allyl monomer is an allyl ester selected from the group of diallyl orthophthalate, diallyl isophthalate, diallyl terephthalate, diallyl benzenephosphonate, diethylene glycol bis(allyl carbonate) and other known allyl monomers and the initiator is preferably a peroxy compound (e.g. benzoyl peroxide, diisopropyl peroxydicarbonate, etc.) or an azo compound (e.g. 4,4'-azobis(4-cyanovaleric acid). A diluent such as an alcohol (e.g. isopropyl alcohol or isobutyl alcohol) or a mutual solvent (e.g. ethylene glycol monobutyl ether, diacetin, triacetin, acetone, etc.) and a coupling agent (e.g. an organofunctional silane) may be added if needed.

Abstract: A method and apparatus for obtaining data for simultaneously measuring relative permeability (k.sub.r), static capillary pressure, dynamic capillary pressure (P.sub.c), and electrical resistivity (R.sub.t) of a core sample taken from a subterranean reservoir under simulated reservoir temperature and pressure. A core sample having a a simulated original water and oil saturation is waterflooded while (1) pressures at spaced points along the core are measured to determine k.sub.r, (2) capillary pressures of the oil and water are measured to determine P.sub.c ; and (3) R.sub.t is measured between points spaced on the core. At the same time, the core is scanned by microwaves to determine the water saturation existing in the core at the time a particular measurement is made.

Abstract: A method and system useful for the removal of contaminants such as sulfur oxides from waste gas streams using a graded-bed system is disclosed. The graded-bed system uses beds with solid sorbents of two or more particle sizes in separate sections of the bed. In one embodiment, the solid sorbents are arranged so that the larger sorbent particles are disposed in the entrance region of the graded-bed system. In operation, a waste gas stream is passed over and through the solid sorbents so that contaminants, such as sulfur oxides and/or nitrogen oxides are adsorbed. The sorbent bed is then contacted with a reducing gas to desorb the sulfur oxides.