Abstract: A process for making a film of butene-1 homopolymer and copolymers of improved strength and clarity and the film made thereby. Such a film is produced by quenching an extruded poly(butene-1) homopolymer or copolymer while in the amorphous state, preferably at temperatures below O.degree. C., and biaxially stretching the quenched film before substantial crystallization occurs. Subsequent heat setting of the film at a temperature above the stretching temperature, but below its melting point, produces a heat stable film of high break strength and clarity, suitable as a food wrap or food container overwrapping material.

Abstract: A method of preparing aromatics processing catalysts which comprises incorporating a noble metal with a member or members of a useful class of zeolites, with such incorporation occurring after zeolite crystallization, but prior to final catalyst particle formation, i.e. extrusion into particles. Said useful class of zeolites is characterized by a silica to alumina mole ratio of at least 12 and a Constraint Index in the approximate range of 1 to 12.

Abstract: A solid product resulting from the nucleated growth of the product on solid material of either the same or different composition and having a density higher than the reaction medium is formed from one or more liquid phase reactants by a method which comprises tangentially introducing the liquid phase reaction medium into the lower, smaller end of an inverted, frusto-conical reactor-separator, thereby imparting an upward swirling motion to the reaction medium in the reactor-separator, the horizontal velocity at the bottom of the reactor-separator being sufficiently large to cause fluidization of larger, solid product particles and concentration of them in the central lower portion of the reactor-separator and the vertical velocity at the top of the reactor-separator being sufficiently small to avoid carry-over of the smaller solid particles but sufficiently large to concentrate them in the upper portion of the reactor-separator; at least periodically recovering the larger, solid product particles in spherical

Abstract: An improved process for alkylation of isoparaffins with olefins to yield a product which includes a high proportion of highly branched alkylates for blending into gasolines. The improved process comprises contacting the isoparaffins and olefins with a composite catalyst comprising a large pore zeolite and a Lewis acid.

Abstract: A zeolite catalyst composition suitable for para-selective conversion of substituted aromatic compounds, i.e., conversion of aromatic compounds to dialkylbenzene compounds rich in the 1,4-dialkyl-benzene isomer. Such a composition comprises a zeolite catalyst component having a silica to alumina mole ratio of at least 12 and a constraint index of about 1 to 12, and a minor amount, e.g, at least 0.25 weight percent of the element cadmium and optionally the element phosphorus, said elements being present in the form of their oxides.

Abstract: The present invention provides a process which is adapted for cyclodimerization of 1,3-butadiene to 4-vinylcyclohexene-1 under Diels-Alder conditions in the presence of a low acidity form of a large-pore zeolite such as ZSM-20, beta or Y.

Abstract: A flexible pipe comprising a first set of stress bearing elements extending substantially the whole length of the pipe, for accommodating maximum hoop stress resulting from flow of pressurized fluid through the pipe, and a second set of stress bearing elements extending substantially the whole length of the pipe for accommodating longitudinal stress resulting from a flow of pressurized fluid through the pipe.

Abstract: Stable water dispersions of relatively low molecular weight poly-(hydroxyethyl methacrylate) and thermosetting coating compositions thereof with aminoplast cross-linking agents are disclosed. These coating compositions are particularly suitable for heat sensitive substrates such as hardboard, plywood plastics and paper since they are capable of rapid cure at low temperatures.

Abstract: A solid product resulting from the nucleated growth of the product on solid material of either the same or different composition and having a density higher than the reaction medium is formed from one or more liquid phase reactants by a method which comprises tangentially introducing the liquid phase reaction medium into the lower, smaller end of an inverted, frusto-conical reactor-separator, thereby imparting an upward swirling motion to the reaction medium in the reactor-separator, the horizontal velocity at the bottom of the reactor-separator being sufficiently large to cause fluidization of larger, solid product particles and concentration of them in the central lower portion of the reactor-separator and the vertical velocity at the top of the reactor-separator being sufficiently small to avoid carry-over of the smaller solid particles but sufficiently large to concentrate them in the upper portion of the reactor-separator; at least periodically recovering the larger, solid product particles in spherical

Abstract: Methylation of coal-derived liquids and other polynuclear aromatic distillate feed stocks for improving distillate fuel quality is achieved by contacting the feed stock with hydrogen sulfide and carbon monoxide over conventional sulfur-resistant hydrotreating catalysts. The resultant product comprises methylated aromatic and hydroaromatic molecules of increased diesel quality. Further hydrogenating of the methylated hydrocarbons further increases the cetane number of the methylated product. A major product of the methylation reaction is elemental sulfur.

Abstract: A method and system are described for determining the dip of subsurface formations penetrated by a borehole. The well is logged using a borehole tool that has at least three antennas spaced approximately equally around the borehole tool for transmitting electromagnetic energy into the earth and receiving electromagnetic energy therefrom. Each antenna array contains a single transmitting antenna and a single receiving antenna. Individual signals are generated representative of the characteristics of the electromagnetic energy detected by each individual receiving antenna. These signals are then compared one to the other to determine the dip of the subsurface formations penetrated by the borehole.

Abstract: Non-gelled compositions containing amine groups and substantially free of oxirane groups are disclosed which are the reaction product of(a) addition copolymer containing primary or secondary amino groups; and(b) a polyepoxide. The resulting composition is self-emulsifiable in water and is useful for coatings, particularly for metal.

Abstract: Novel acoustic logging tools are disclosed for logging unconsolidated formations. These tools include point force shear wave, and multidirectional compressional wave transmitters. A plurality of receivers with sensitivities matched to these transmitter types are provided for selectively gathering P wave and S wave information. The transmitters and receivers are located, sequenced and gated to ensure that high quality wave data is rapidly and reliably collected.

Abstract: Ethoxylated amines and their borated derivatives are effective friction modifying additives when incorporated into various hydrocarbyl lubricants. In general the borated derivatives possess superior friction modifying capability.

Abstract: A method for determining the fluid saturation conditions of a porous material containing a liquid hydrocarbon. An insoluble displacing liquid is pumped into such porous material and displaces the liquid hydrocarbon. The amount of displaced liquid hydrocarbon is monitored as a measure of the saturation condition of the porous material at any given time.

Abstract: A system for measuring ultrasonic (50 Khz-10 Mhz) velocity and attenuation in core samples employs transmitting and receiving transducers for generating and receiving ultrasonic energy in a core sample. The transducer and core sample are contained in a high pressure cell. The transducers are isolated from the high pressure of the cell by suitable housings, allowing the transducers to operate at ambient pressure.

Abstract: A process for converting phenolic compounds to aniline by passing them over ammonia in the presence of ZSM-5 type zeolites under conversion conditions whereby high conversion, high selectivity and improved rates of production are achieved.

Abstract: A zeolite catalyst composition suitable for para-selective conversion of substituted aromatic compounds, e.g. conversion of aromatic compounds to dialkylbenzene compounds rich in the 1,4-dialkylbenzene isomer. Such a composition comprises a zeolite catalyst component having a silica to alumina mole ratio of at least 12 and a constraint index of about 1 to 12, and a minor amount, e.g., at least 0.25 weight percent of the elements iron and/or cobalt and optionally the element phosphorus, said elements being present in the form of their oxides.

Abstract: A confining pressure system includes a pressure cell containing a mechanical oscillator and a gas supply for carrying out resonance measurements of rock material under confining pressure at seismic frequencies. An appropriate gas is used to avoid significant damping of oscillations under confining pressures of various ranges.

Abstract: Multiple reflections are filtered from seismograms by transforming them into an f-k array representing amplitude as a function of frequency and wave number. The inverse of the f-k transform of the multiple reflections is generated. The f-k array of the seismograms is filtered by weighting all samples with the inverse of the f-k transform of the multiple reflections.