Abstract: An oriented heat sealable multilayer structure. The structure comprises a substrate having a first surface and a second surface, the substrate comprising a polyolefin film; a polymeric heat sealable layer on the first surface of the substrate, the layer comprising a polymeric material selected from the group consisting of a terpolymer of ethylene, propylene and butene-1, a random copolymer of ethylene and propylene, and blends thereof; a primer coating on the second surface of the substrate; and a water vapor and gas barrier layer on the primer coating, the water vapor and gas barrier layer selected from the group consisting of a vinylidene chloride copolymer containing at least about 50% of vinylidene chloride and an interpolymer comprising a minor amount of acrylic acid, methacrylic acid or mixtures thereof and a major amount of neutral monomer esters comprising methyl acrylate, ethyl acrylate, methyl methacrylate or mixtures thereof.

Abstract: This invention relates to a novel synthetic crystalline molecular sieve composition, MCM-37, which may contain framework +3 valence element, e.g. aluminum, and +5 valence element, e.g. phosphorus or with an addition +4 valence element, e.g. silicon, and to use thereof as a support and in catalytic conversion of organic compounds. The crystalline composition of this invention can easily be converted to catalytically active material.

Abstract: A multilayer opaque, biaxially oriented polymeric film structure.

Abstract: A sand consolidation method is provided for use in a borehole having an unconsolidated or loosely consolidated oil or gas reservoir which is likely to introduce substantial amounts of sand into the borehole and cause caving. After perforating the borehole's casing at an interval of the formation where sand will be produced, an aqueous solution of potassium silicate is injected into said interval. Thereafter, an alcoholic solution of hydrated calcium chloride is injected into the interval. A permeability retaining calcium silicate cement is formed in the interval. Injection of the potassium silicate and hydrated calcium chloride solutions is continued until the interval has been consolidated by the calcium silicate cement to an extent sufficient to prevent sand migration and thereby prevent caving.

Abstract: A novel method of injecting or squeezing a cross-linked scale inhibitor down a well into a subterranean formation which significantly lengthens its effective life is accomplished by cross-linking a carboxylic acid-containing polymeric or organophosphorus-containing inhibitor with a polyalcohol. The significant extension of life afforded by cross-linking with a polyalcohol improves the overall economics of oil production in fields prone to mineral scale.

Abstract: A liquid leak detector for use with above-ground storage tanks. The liquid leak detector includes a vertically upright standpipe for filling with a liquid to a level that generates a hydrostatic head pressure substantially equivalent to that exerted by the liquid in the storage tank; a first pipe connected to the standpipe at about the bottom end thereof and adapted to be connected to the tank at about the bottom of the tank; a pressure transducer disposed within the first pipe for sensing hydrostatic head pressure differential between the liquid in the storage tank and the liquid in the standpipe to determine a change in pressure differential resulting from a change in the amount of liquid in the storage tank; and a hose connected above the level of the liquid in the standpipe and adapted to be connected to the tank above the level of the liquid in the tank.

Abstract: A fuel additive having detergency, solubility and thermal stability is a mixture of polyalkenyl succinimides, polyalkylenes, i.e., polyisobutylene or polypropylene, an ester and a polyether; namely a polybutylene oxide, polypropylene oxide or polybutylene/polypropylene oxide copolymer, and an optional amount of a mineral oil or synthetic oil.

Abstract: A method is disclosed for making end terminations for a plastic reclosable fastener or zipper, which incorporates a stop for the zipper slider wherein the zipper profile is cut apart with a hot knife which forces the melted material into cavities forming the end stops.

Abstract: A system and method for determining multi-phase relative permeability characteristics of a porous media sample obtained from a subterranean reservoir. The porous media is placed in a confining flow cell assembly and the pressure drop across the porous media is measured during multi-phase fluid flooding. A computed tomography (CT) scanning system provides images of the density distribution within the core sample. Fluid saturation is determined from these CT images as well as from material balance and pressure drop data to determine the relative permeability of the subterranean reservoir.

Abstract: A food storage container for dry or liquid foods and other open air perishable products provides a leak-resistant seal when the lid is in a closed position and easy pouring of contents when in the open position. The container is easy to open, employing rocker points to allow for a rocking action effective to release the lid from a closed position when a downward force is exerted upon an upper surface of the lid thereby providing an effective opening for pouring. A leak-resistant seal is achieved through the use of a plug section of the lid having a continuous outer peripheral surface which effects a close conforming fit with a similarly positioned surface area on the container body in a continuous and positive manner.

Abstract: Barium sulfate scale is dissolved by contacting the scale with an aqueous solvent having a pH of about 8 to about 14, containing a chelating agent comprising a polyaminopolycarboxylic acid or salt of such an acid, and a synergist anion. The aqueous solvent containing the dissolved scale is regenerated by first acidifying the aqueous solvent sufficiently to generate free alkaline earth metal ions. The aqueous solvent is then mixed with a liquid membrane emulsion enveloped around droplets of an internal aqueous phase containing an anion that forms an insoluble precipitate with the free alkaline earth metal ions. The scale-free aqueous solvent is separated from the emulsion by gravity and recovered for reuse.In another embodiment, the internal aqueous phase may contain a chelating agent to remove the free alkaline earth metal ions by forming a stable complex with the ions.

Abstract: A utility caddy is provided which can be used for transporting cleaning supplies and the like. The caddy includes a pair of triangular compartments separated by a double-walled partition. A handle formed integrally with the partition allows the caddy to be easily carried. The caddy is preferably provided as part of an assembly including a similarly configured bucket. The caddy can be inserted within the bucket so that both items can be stored in a minimal amount of space, or carried together.

Abstract: The disclosure reveals that aromatic structures can be introduced into the molecular structure of polyalpha-olefin lubricant oligomers by subjecting the polyalpha-olefin to a dehydrocyclization reaction which converts a portion of the pendant or branching alkyl groups in the recurring polymeric unit of PAO to aromatic structures. When the starting material for dehydrocyclization is PAO prepared by oligomerization of C.sub.6 -C.sub.20 alpha-olefins in contact with reduced chromium oxide catalyst on porous support the dehydrocyclization reaction produces a lubricant oligomer with increased aromaticity without significantly degrading the viscometric properties of the feedstock lubricant, particularly the high VI of the starting material. The aromatic structures introduced lend increased thermal stability, wear resistance and solubilizing characteristics to the liquid lubricant oligomers so modified.

Abstract: An olefin polymerization catalyst composition contains:(1) a zirconium compound, containing pi-bonded organic ligands of the formula:Cp.sub.m ZrA.sub.n X.sub.qwherein Cp is unsubstituted or substituted cyclopentadienyl, m is 1, 2 or 3, A is a halogen, hydrogen, a C.sub.1 -C.sub.6 alkyl group, a metalloalkyl or a group of the following general formula: ##STR1## where R is a C.sub.1 -C.sub.10 alkyl group, hydrogen, a halogen or a metalloalkyl group and n is 0, 1 or 2, X is a halogen, hydrogen or a C.sub.1 -C.sub.6 alkyl group, providing that q+m+n=valence or Zr; and(2) a catalyst activator which contains a mixture of(i) an organoaluminum compound having the formula:R.sub.p 'AlX.sub.(k-p) ' or R.sub.3 'Al.sub.2 X.sub.3 'where R' is a C.sub.1 -C.sub.6 alkyl group, p is 1 or 2, X' is a halogen and k is the valence of aluminum; and(ii) a dialkylmagnesium compound, preferably soluble in hydrocarbons, having the formula:MgR.sub.t " or MgR.sub.r "R.sub.(t-r) "where R" is a C.sub.2 -C.sub.

Abstract: Emission of noxious nitrogen oxides with the flue gas from the regenerator of a fluid catalytic cracking plant are reduced by incorporating into the circulating inventory of cracking catalyst separate additive particles that contain a copper-loaded zeolite material having a characteristic structure with a defined X-ray diffraction pattern. The preferred material of this type is zeolite MCM-22. The copper may be exchanged onto the zeolite or impregnated into the catalyst. In addition, the catalyst may include titanium or zirconium to provide stability and further improvements in stability may be obtained with the addition of rareearth metal cations, especially cerium or yttrium. NOX and CO emissions from the regenerator are reduced, and the gasoline produced in the unit may have an improved octane number.

Abstract: Natural gas processing equipment and sorption media such as charcoal, silica or alumina, contaminated with adherent scale deposits of alkaline earth metal sulfates may include radioactive components, especially radium sulfate and thorium sulfate, which render the equipment radioactive. The scale is removed from the processing equipment by washing with an aqueous chemical composition including a polyaminopolycarboxylic acid such as EDTA or DEPA as a chelant in combination with a synergist, preferably oxalate or monocarboxylate acid anion such as salicylate. The washing may be carried out with the equipment in place or by immersion of the equipment in a body of the solution in a suitable treatment tank.

Abstract: A process for use with a polymer which is crosslinkable by reaction with an amino resin, which comprises the steps of determining a period of time within which full gelation of the polymer is to be achieved; preparing a gel-forming aqueous-based mixture comprising the polymer, a rapid amino resin crosslinking agent and a delayed amino resin crosslinking agent, the gel-forming aqueous-based mixture capable of complete gelation within the period of time so determined; partially gelling the aqueous-based mixture by reacting the polymer with the rapid amino resin crosslinking agent which is effective to complete the partial gelation by crosslinking the polymer within four hours; and fully gelling the aqueous-based mixture by reacting the polymer with the delayed amino resin crosslinking agent which is effective to complete the full gelation by crosslinking the polymer within the period of time so determined. A method of enhancing the recovery of oil from a subterranean oil-bearing formation is also provided.

Abstract: Grease compositions, wherein the grease is thickened with a metal hydroxy-containing soap grease thickener are provided. Other essential ingredients of the compositions include borated hydrocarbylamines.

Abstract: Alkaline earth metal scales, especially barium sulfate scale deposits are removed from oilfield pipe and other tubular goods with a scale-removing composition comprising an aqueous alkaline solution having a pH of about 8 to about 14, preferably about 11 to 13, of a polyaminopolycarboxylic acid, preferably EDTA or DTPA and a catalyst or synergist comprising a monocarboxylic acid, preferably a substituted acetic acid such as mercaptoacetic, hydroxyacetic acid or aminoacetic acid or an aromatic acid such as salicylic acid. When the scale-removing solution is contacted with a surface containing a scale deposit, substantially more scale is dissolved at a faster rate than is possible without the synergist.

Abstract: A dual function composite catalyst for isomerizing an isomerization feed containing an aromatic C.sub.8 mixture of ethyl benzene and xylene, comprises (a) a crystalline aluminosilicate zeolite having a low acid activity as measured by an alpha value of from 0.02 to 11, an average crystal size of not more than 0.4 microns for at least 50% by weight of the crystals, a silica to alumina ratio of at least about 12, a constraint index of about 1 to 12, a xylene sorption capacity greater than 1 gram per 100 grams of zeolite, and an ortho-xylene sorption time for 30 percent of said capacity less than 10 minutes, said sorption capacity and sorption time being measured at 120.degree. C. and a xylene pressure of 4.5.+-.0.8 mm of mercury, and (b) a supported metal of Group VIII of the Periodic Table having a high hydrogenation/dehydrogenation activity to provide the catalyst with a dehydrogenation activity of at least 10. The catalyst has an alpha value of 0.005 to 3.