Abstract: A film combination has a pair of polymeric substrate films. At least one surface of each has a surface free energy of at least 35 dynes/cm and a primer coating on each. Each primer coating has a layer of poly(vinylalcohol) containing a cross-linking means. Each film of the pair is positioned with the poly(vinylalcohol) layers in intimate contacting relationship before any substantial cross-linking occurs.

Abstract: There are disclosed novel, solid, elastomeric block copolymers having excellent oxidative and thermal stability, wherein the terminal blocks are each a polymer (D polymer) of at least one conjugated diene D, which is a hydrocarbon containing a 1,3-conjugated diene structure wherein the 2 and 3 carbon atoms are each additionally bonded to a hydrocarbyl side group, e.g., 2,3-dimethyl-1,3-butadiene, with a preponderance of polymerized D units being 1,4 units; and at least one interior block is a hydrogenated polymer (I polymer) of at least one conjugated diene I which is a hydrocarbon containing a 1,3-conjugated diene structure wherein one of the 2- and 3-carbon atoms is additionally bonded to a hydrocarbyl side group and the other is additionally bonded to a hydrogen atom, e.g. isoprene.

Abstract: There is provided a catalytic method for converting nitrogen oxides to nitrogen (i.e., N.sub.2). The catalyst for this method comprises an acidic solid component comprising a Group IVB metal oxide modified with an oxyanion of a Group VIB metal and further comprising at least one metal selected from the group consisting of Group IB, Group IVA, Group VB, Group VIIB, Group VIII, and mixtures thereof. An example of this catalyst is zirconia, modified with tungstate, and iron. This method may be used for reducing emissions of nitrogen oxides from waste gases, including industrial exhaust gases and automobile exhaust gases. In a particular embodiment, nitrogen oxides in waste gases may be reacted with ammonia before the waste gases are discharged to the atmosphere.

Abstract: In a borehole logging tool, a hot wire or hot film anemometer measures fluid flow entering or exiting the borehole at the wall of the borehole. The logging tool has open sensing pads mounted on the arms to place the sensor pads at the wall. The sensor pads are open to fluid flow to provide minimum disruption of flow. Other sensors measure flow direction, capacitance, and temperature.

Abstract: Polyalkylene amine coupled heterocyclic compounds are effective multifunctional additives, providing cleanliness to fuels and lubricants as well as anti-wear, friction-modifying, thermal and oxidative stabilizing properties. The beneficial effects of the product of the instant invention apparently result from an internal synergism between the polyalkylene amine groups and the heterocyclic groups.

Abstract: Monoalkylated diphenyl oxides are high-temperature stable lubricant fluids having excellent low temperature viscometrics, and excellent additive solubility. These monoalkylated products are obtained by the alkylation of diphenyl oxide using, for example, an olefin alkylating agent, usually in the C.sub.8 to C.sub.18 range, in the presence of an acidic zeolite alkylation catalyst such as USY, which provides the selectivity for the monoalkylated product.

Abstract: A method for recording and pre-processing high fidelity vibratory seismic data includes measuring the motion of the vibrator which is related to the vibrator applied force times a transfer function of minimum phase, causal, linear system relating the actual vibrator output with the measured vibrator motion, determining a ratio by dividing the vibratory seismic data by the measured motion of the vibrator to remove the unknown applied force leaving the earth reflectivity times a time derivative divided by a minimum phase function, minimum phase band pass filtering the resulting ratio and performing minimum phase deconvolution to remove the time derivative divided by the transfer function of minimum phase. The method may also include the steps of receiver ensemble deconvolution, statics correction, F-K filtering for noise, zero phase spiking deconvolution and model dephasing. The actual signal that the vibrator is sending into the ground is used in pre-processing.

Abstract: A catalyst composition for copolymerizing ethylene with alpha-olefins is prepared by supporting a magnesium compound and a titanium compound on a solid, inert porous carrier, and activating the precursor with a mixture of dimethylaluminum chloride and a trialkylaluminum compound. Products with a bimodal molecular weight distribution are produced which are free of alpha-olefin oligomers.

Abstract: Removing sulfur oxide and carbon monoxide in a flue gas stream by combusting fuel in the combustor with a reduced amount of oxygen to partially convert carbon monoxide therein to carbon dioxide and sufficient to convert all sulfur-containing species in the flue gas stream to sulfur oxide and thus form a sulfur oxide enriched gas stream having between at least about 500 ppm carbon monoxide. The sulfur oxide enriched gas stream is contacted with a solid adsorbent bed for adsorbing the sulfur oxides in the form of inorganic sulfates and/or sulfur oxides. The solid adsorbent contains a catalytic oxidation promoter for oxidizing the carbon monoxide gas stream to carbon dioxide, thus forming a sulfur oxide and carbon monoxide depleted stream for disposal. The adsorbent bed is then contacted with a reducing gas stream for regenerating the adsorbent bed to form a hydrogen sulfide and/or sulfur dioxide bearing stream.

Abstract: A method and system for cracking hydrocarbons and regeneration of the catalyst is described with particular emphasis directed to partially restoring the activity of the catalyst after an initial hydrocarbon conversion use by heat soaking the catalyst at an elevated temperature before use in a second hydrocarbon conversion zone.This case is a division of application Ser. No. 595,833, filed Jul. 14, 1975.

Abstract: The present invention is a method of producing low oxygen-transmissive films having PVOH coatings through the utilization of a PVOH solution which includes at least two PVOH resins having differing degrees of hydrolysis. The present invention is also a low oxygen-transmissive film manufactured by this method.

Abstract: The present invention relates to a process for alkylating a reformate feedstream containing benzene, toluene, xylenes, and ethylbenzene, said process comprising:1) contacting said reformate feedstream with a hydrocarbon stream comprising C.sub.2 -C.sub.5 olefins in the presence of a catalyst comprising an active form of synthetic porous crystalline MCM-49 under benzene alkylation conditions whereby an effluent stream is produced having a benzene content at least 50 wt % less than that of said feedstream, an octane rating no less than that of said feedstream, and a total liquid product greater than that of said feedstream; and2) collecting the gasoline boiling range fraction of said effluent stream.

Abstract: A process for hydrotreating a hydrocarbon feedstock, such as light cycle oil, using a catalyst composition containing a hydrogenation/dehydrogenation component and an acidic solid component including a Group IVB metal oxide modified with an oxyanion of a Group VIB metal. The hydrotreating process removes contaminants, such as sulfur and/or nitrogen, from the feedstock.

Abstract: The invention is a foam method for improving conformance during a steam flood or carbon dioxide flood in a subterranean, oil-containing formation penetrated by at least one injection well and at least one production well. In a steam flood oil recovery process, sweep efficiency is improved by injecting steam until steam breakthrough occurs at the production well after which a mixture of steam, a noncondensible gas, and an aqueous surfactant-polypeptide solution is injected into the formation. The aqueous surfactant-polypeptide solution forms a stable foam with the formation oil at formation conditions that reduce the permeability of the highly permeable steam swept zones thereby diverting the steam to other portions of the formation containing unswept oil. The polypeptide is used as a partial substitute for the surfactant to improve the cost of the foam-forming mixture without reducing its effectiveness in increasing sweep efficiency.

Abstract: A catalytic molecular sieve which has been preselectivated by agglomerating with an organosilicon compound. The invention also includes a method for agglomeration-preselectivation and the shape selective catalyst which results from the agglomeration preselectivation.

Abstract: An FCC process and apparatus operates with closed reactor cyclones and a catalyst stripper using H2 or recycled stripper vapor for stripping gas. Preferably stripper vapor is removed, cooled and condensed, and some vapor recycled to the stripper. Isolation of the stripper from the cracked product vapors permits use of large amounts of stripping steam, or stripping gases such as hydrogen.

Abstract: A method for synthesizing an ultra-large pore crystalline material which can be used as a sorbent or catalyst component for the conversion of organic and inorganic compounds is improved through the addition of an antifoaming agent. The addition of antifoaming agents reduces foaming without interfering with material synthesis. Elimination of foam allows for easier charging of autoclaves and processing of synthesis mixtures.

Abstract: Polyalkylene amine coupled heterocyclic compounds are effective multifunctional additives, providing cleanliness to fuels and lubricants as well as anti-wear, friction-modifying, thermal and oxidative stabilizing properties. The beneficial effects of the product of the instant invention apparently result from an internal synergism between the polyalkylene amine groups and the heterocyclic groups.

Abstract: The invention relates to lubricant and fuel additives having antiwear and friction reducing properties. The invention also relates to compositions of oils with viscosities appropriate for lubricants, greases produced therefrom, and fuels and methods for making these compositions. Described in this invention are products of nitrogen heterocycles, such as benzotriazole and tolyltriazole, with amines, such as alkyl amines, aliphatic diamines, alicyclic amines, heterocyclic amines, propylene amines, and aliphatic etheramines, that are linked using carbonyl compounds (e.g., aldehyde, ketone or glyoxal). Additionally, products generated by the reaction of carboxylic acids or carboxylic acid generating compounds (e.g., salts or esters) with carbonyl (e.g., aldehyde, ketone or glyoxal) coupled nitrogen heterocycles and amines, including those described above, are also included in this invention. These products can be used in fuels and lubricants to produce improved antiwear and friction reducing properties.

Abstract: Combinations of dimercaptothiadiazole-mercaptan coupled derivatives with amines have been found to be effective load-carrying additives for lubricants and fuels.