Abstract: This invention provides a graft copolymer of at least one acrylic monomer and a random copolymer of a styrene and allyl alcohol, in which at least about 8 percent of the total weight of said graft copolymer is derived from acrylic acid, methacrylic acid, or both. It also provides anionic aqueous dispersions of such graft copolymers and coating compositions containing them.

Abstract: This invention discloses a method and system for continuously measuring the amount of solid cuttings picked up by a drilling mud being circulated in a well being drilled into subterranean formations and the amount of drilling mud carried over with the cuttings when the cuttings are separated from the drilling mud by a shale shaker. The cuttings and carryover mud discharged from the shale shaker are introduced into a vessel wherein the weight and volume of the solid cuttings and carryover mud are continuously measured and the volume fraction of solid cuttings .phi..sub.c is determined in accordance with the following equation: ##EQU1## wherein W is the weight of a fixed volume of solid cuttings and carryover mud discharged from the shale shaker, V is the volume of solid cuttings and carryover mud discharged from the shale shaker, P.sub.m is the density of the drilling mud, and P.sub.c is the density of the solid cuttings. The volume fraction of the carryover mud .phi..sub.

Abstract: This invention provides a graft copolymer of at least one acrylic monomer and a random copolymer of a styrene and hydroxyethyl (meth)acrylate, in which at least about 8 percent of the total weight of said graft copolymer is derived from acrylic acid, methacrylic acid, or both. It also provides anionic aqueous dispersions of such graft copolymers and coating compositions containing them.

Abstract: This invention provides a graft copolymer of at least one acrylic monomer and polystyrene, in which at least about 8 percent of the total weight of said graft copolymer is derived from acrylic acid, methacrylic acid, or both. It also provides anionic aqueous dispersions of such graft copolymers and coating compositions containing them.

Abstract: A process is described for minimizing accumulation of undesirable polythionates on an ion exchange resin used to recover uranium values from a leachate from an in situ mining operation by adding sulfite, either as a sulfite salt or as SO.sub.2, directly to the leachate or to the eluant.

Abstract: Recovery of oil in a subterranean oil-bearing formation comprising injecting a slug of an aqueous solution containing a water-soluble salt comprising sodium oxalate or sodium fluoride, injecting a slug of CO.sub.2 and injecting a driving fluid to displace the oil toward a production well for recovery. The water-soluble salt forms an insoluble precipitate with calcium ions in the formation and preserves more of the injected CO.sub.2 for oil displacement including preventing undesirable changes in formation permeability.

Abstract: A direct precipitation method based on the insolubility of uranyl phosphate in carbonate containing solutions at pH 6-6.5 and its insolubility at pH 8 is described. The method eliminates the use of ion exchange columns for removing uranium values from uranium leachates and can be readily applied to an integrated field operation.

Abstract: A simple harmonic oscillator for use in measuring dynamic elastic constants of rock material samples includes a pair of masses vertically suspended from a support position by a pair of wires. At least one mass is driven by a permanent magnet with the driving coil positioned in the air gap to the magnet. The rock sample is horizontally positioned between the pair of masses such that the rock sample acts as a spring element connecting the masses, thereby forming the simple harmonic oscillator. Resonance measurements are determined for various pore fluid contents by introducing various ratios of gas/water/oil into the rock sample.

Abstract: An in-situ combustion method for recovering viscous oil from a subterranean, viscous oil-containing formation comprising injecting a mixture of essentially pure oxygen and carbon dioxide into the formation to initiate an in-situ combustion operation followed by injecting essentially pure oxygen.

Abstract: An annular calibration unit employs a steady-state radioactive source. The calibration unit is slidably mounted about a radioactive logging tool and produces radioactive radiation for calibrating the radioactive radiation detectors within the logging tool.

Abstract: An electrode for use in telluric electrical energy measurements is disclosed which has the property of easy, rapid installation and retrieval while maintaining electrical stability. The electrode is durable and much more easily stored than prior art telluric electrical survey electrodes.

Abstract: Thermosetting polyesters and their preparation comprising diol, triol, benzenedicarboxylic acid and, as an essential ingredient are disclosed, as well as coating compositions containing those polyesters with cross-linking agents such as aminoplast.

Abstract: A flexible film laminate of (a) a polyacrylonitrile film containing a heterized ethylene oxide-propylene oxide copolymer; (b) contacting said film with an adhesive combination layer of a styrene-butadiene block copolymer and a terpolymer of 1,3-pentadiene, a monocyclic terpene and alpha methylstyrene; and (c) a second polyacrylonitrile film or a heat-sealable polyolefin film contacting said adhesive layer; a product pouch made therefrom; and a method of forming said laminate.

Abstract: Para-ethyltoluene dehydrogenation catalyst compositions and processes for using such catalysts are provided. The catalyst compositions comprise a catalytically active iron compound, e.g., iron oxide; a potassium catalyst promoter, e.g., potassium carbonate; an optional chromium compound stabilizer, e.g., chromic oxide, and a gallium compound, e.g., gallium trioxide. Utilization of particular amounts of gallium compound in dehydrogenation catalyst compositions of this type will provide a catalyst especially suitable for promoting the selective dehydrogenation of para-ethyltoluene to form para-methylstyrene with sustained catalyst activity, with minimized aromatic ring loss and with minimal formation of popcorn polymer from the reaction effluent. suBACKGROUND OF THE INVENTION1.

Abstract: A marine cable positioning system which includes a plurality of magnetic compasses and a plurality of lateral positioning devices spaced at known intervals along the cable being towed by a marine vessel. Readings from the compasses together with readings from a magnetic compass and gyrocompass onboard the towing vessel are gathered and used with a selected reference heading to generate X-Y coordinates of the lateral positioning devices with respect to the towing vessel and selected reference heading. These coordinates are recorded and provided to a cathode ray tube for visual display of the relative position of each lateral positioning device with respect to the vessel and selected heading. Coded digital commands are generated and transmitted to each lateral positioning device for adjustment of its control surfaces whereby the lateral thrust produced the device as it is towed through the water is varied and the horizontal position of the portion of the cable to either side of the device controlled.

Abstract: A single-ply polyolefin film coated on one side with a heat sealable acrylic-based interpolymer consisting essentially of an alpha-beta monoethylenically unsaturated carboxylic acid and neutral monomer esters comprising an alkyl acrylate and an alkyl methacrylate ester or mixtures thereof, and on the other side with a heat sealable polyvinylidene chloride-based multipolymer; said film being useful in diverse packaging applications.

Abstract: Arsenic and Nitrogen Removal from shale oil by delayed coking in the presence of carbonaceous materials.

Abstract: A flexible film laminate of (a) a polyacrylonitrile film containing a polyalkylene glycol ether adhesion promoter; (b) contacting said film with an adhesive combination layer of a styrene-butadiene block copolymer and a terpolymer of 1,3 pentadiene, a monocyclic terpene and alpha methylstyrene; and (c) a second polyacrylonitrile film or a heat sealable polyolefin film contacting said adhesive layer; a product pouch therefrom; and a method of forming said laminate.

Abstract: An improved method for three-dimensional seismic exploration of the subterranean structure of the earth is disclosed wherein arrays of sources of acoustic energy and of detectors of reflected energy are used. The configurations of both arrays are conjointly experimented with to improve the signal-to-noise ratio of the resultant data; the signals output by the detectors are summed, and are correlated with those output with respect to all acoustic energy emitted within a given array of sources.

Abstract: Polymer powder is dispersed in a combination of an organic solvent for the powder and sufficient water to prevent dissolution of the powder in the organic solvent. The system is heated and the powder is dissolved in the solvent-water system. Water is thereafter removed and the system concentrated.