Abstract: A method for the dissolution of amorphous dithiazine buildup on a surface is presented. The method consists of treating the dithiazine buildup with a solution of hydrogen peroxide, which reacts and breaks apart the buildup for easy removal.

Abstract: Methods of using an aldimine of formula (I) as cleaning agent or ingredient of a cleaning agent composition for reactive polyurethane compositions, especially for reactive polyurethane hot melt adhesives. It has been found that such cleaning agents can greatly reduce the quantity of wastes and in particular mixtures of blocked and nonblocked reactive polyurethane compositions can be used without problem for gluing, without the gluing being negatively influenced in its properties, especially its thermal stability.

Abstract: The invention relates to a class of novel surfactants that have utility in the recovery and/or extraction of oil.

Abstract: This invention relates to solvent systems useful for foam nozzle cleaning, which solvent systems are formed by combining at least a brominated compound, an alcohol and a stabilizer in amounts such that the solvent system has no flash point.

Abstract: A process is provided for removing polymeric fouling on process equipment surfaces to restore the efficiency of such equipment. This is accomplished by contacting the fouled equipment with a solvent comprising at least one non-aromatic hydrocarbon compound, or a mixture of one or more non-aromatic organic compounds and one or more aromatic hydrocarbon compounds, for a period of time sufficient to remove the polymeric fouling.

Abstract: The present invention relates to a agent for cleaning metal drawing oil, which contains alcohol, glycol ether, water, and one or more compounds selected from hydrocarbon or ester compounds. The cleaning agent according to the present invention is environmentally friendly because it does not contain halogen elements such as chlorine. The agent can reduce toxicity on the human body due to low volatility; is economical due to the long change period resulting from the reduction of evaporation; and removes drawing oil having high viscosity and polarity effectively during metal processing.

Abstract: The invention relates to a process for removing fouling on a surface, wherein the surface is contacted with an aqueous solution of a guanidine of formula R1R2N—C(?NH)—NR3R4??(I) wherein R1, R2, R3 and R4 may be the same or different and each of R1, R2, R3 and R4 is hydrogen or hydrocarbyl.

Abstract: The present invention comprises an iron complexing mixture and method of using same wherein beneficial performance and natural gas pipeline cleaning methods are employed. The synergistic improvement of combining two water-soluble metal complexing agents, THPS and IDS, prove to offer advantages in performance over the individual use of either chemical.

Abstract: The invention relates to a concentrate for the effective, environmentally friendly treatment of oil-polluted stretches of ground and the cleaning of oil-contaminated surfaces, said concentrate containing an emulsifier, a vegetable oil and ethanol. The emulsifier is preferably a non-ionic surfactant with an HLB value between 7 and 8. The vegetable oil is preferably selected so that it is liquid at temperatures above 5 DEG C. Oils containing unsaturated fatty acids, in particular germ oils are especially suitable. For its application as a treatment for stretches of ground, the inventive concentrate is diluted with water to form a cleaning solution and is applied to the oil-contaminated surface that is to be treated. The oil is emulsified in the inventive cleaning solution and is detached from the particles of the ground. The oil degrades in a significantly easier manner in the emulsified state. To clean oil-contaminated surfaces, the cleaning solution is sprayed onto the latter.

Abstract: A method of cleaning and flushing a fast-set material spray gun 10 is disclosed which uses, in the preferred embodiment, a mixture of approximately 62.5% DMSO, 32.5% DBE and 5% water. This mixture 12 is non-toxic when atomized and lowers the freezing point of the liquid to below 10° F. Because the solvent is mixed with the purge air and expelled from the gun in atomized form, it is important that a non-toxic solvent be utilized and also important that the freezing point of the mixture be low enough to allow use in colder climates without freezing.

Abstract: A method for treating a contaminated substrate comprising the steps of contacting an emulsion to a substrate surface soiled with one or more contaminants, the emulsion comprising a blend of dibasic esters, whereby the emulsion is capable of emulsifying all or some of the contaminants, forming a resulting emulsion; removing substantially all of the resulting emulsion from the substrate surface; and, optionally, in recovering the contaminant, adding an amount of water or a solvent to the resulting emulsion effective to form at least a first phase layer comprising a substantial amount of the contaminant and a second phase layer comprising a substantial amount of the emulsion. The dibasic esters can be a blend of adipic, glutaric, and succinic diacids, and, in one particular embodiment, the blend comprises dialkyl methylglutarate and dialkyl ethylsuccinate, wherein the alkyl groups individually comprise a C1-C12 hydrocarbon group. The one or more surfactants and additional components can be added.

Abstract: The present invention relates to reactive purge compound for cleaning polymer processing equipment wherein the reactive purge compound that includes i) at least about 50 wt.% of a polymeric carrier component based on the total weight of the reactive purge compound; and ii) a chain scission catalyst component dispersed in the polymeric carrier component; wherein a) the chain scission catalyst component includes a chain scission catalyst selected from the group consisting of at least one alkali metal hydroxide, at least one alkaline earth metal hydroxide, and any combination thereof; b) the reactive purge compound further comprises a water generating component; or c) both (a) and (b); wherein the reactive purge compound is a feedstock material in the form of a plurality of pellets, granules, rods, powder or other particles.

Abstract: The present invention comprises an iron complexing mixture and method of using same wherein beneficial performance and natural gas pipeline cleaning methods are employed. The synergistic improvement of combining two water-soluble metal complexing agents, THPS and IDS, prove to offer advantages in performance over the individual use of either chemical.

Abstract: The present invention relates to a method for producing an organic composition containing a functional component selected from the group consisting of a thermoplastic polymer, an enzyme, a setting agent, a paraffin, an oil, a colorant and a hair or skin care substance. The method includes providing an n-nonyl ether, a functional component which is able to react with an n-nonyl alcohol component, and, if appropriate, at least one further additive substance; and mixing the n-nonyl ether, the functional component and the at least one further additive substance. The invention further relates to a method for producing and using a molded article, a method for producing an item to be packaged, the use of at least one n-nonyl ether, a method for producing and/or cleaning the surfaces of boreholes, drilling devises or drill cuttings, and also to methods for producing an oil or a gas.

Abstract: The present invention addresses a problem with conventional techniques for recycling electrical equipment that have a hardened epoxy resin and electroconductive material where a catalyst is degraded to an extent that it can no longer be reused when water is present in a dissolving system. Moisture, when present in the dissolving system for treating electrical equipment including electroconductive material of aluminum, may react with aluminum to produce an aluminate compound which is transformed into aluminum oxide (alumina) under heating, which, in turn, may cause abnormal temperature rise to melt aluminum. This may be accompanied by formation of hydrogen which can cause danger of explosion. The present invention manages moisture content in a dissolving system by drying an object to be treated with a catalyst and a solvent prior to the dissolving treatment.

Abstract: The present invention provides a cleaning composition used for cleaning a device for producing a liquid crystalline polyester, the composition comprising (A) glycols, (B) amines and (C) a compound selected from the group consisting of cyclic esters, amides and sulfoxides, wherein the content of the component (B) is 5 to 40% by weight and the content of the component (C) is 5 to 30% by weight, both being with respect to the total weight of the cleaning composition.

Abstract: A method and a composition for remediating reticulation equipment such as a bore having biocontamination deposits is disclosed. In its most preferred form, the composition is formed by mixing dry solid oxalic acid, a cupric salt such as copper sulphate, and a solid acidic compound such as sodium bisulphate. Proportions of 94%, 2% and 4% respectively are suitable, while avoiding toxicity and contamination problems. After thorough mixing this mixture can be stored in a dry sealed container for future use. In use, the reticulation equipment is dosed with from 3 kg to 7 kg of mixture per hundred litres of water contained within the reticulation equipment.

Abstract: The present invention has an object to provide a cleaning agent that has excellent cleaning properties and replacement properties and can further improve the workability during the cleaning of a resin-molding machine, a process for cleaning a resin-molding machine using the same, and the like. A cleaning agent comprising a pellet containing a thermoplastic resin, and 5 to 50 parts by weight of a substance that is liquid at use temperature, based on 100 parts by weight of the thermoplastic resin is used. Such a cleaning agent is introduced into the cylinder of a resin-molding machine, heat is applied to the cleaning agent to hold it in a plasticized state, and the cleaning agent held in a plasticized state is discharged from the cylinder of the resin-molding machine.

Abstract: The present invention relates to the use of a mixture, comprising one or more alkyl esters of fatty acids and one or more esters of fatty acids of glycerol carbonate, as a fuel or solvent.

Abstract: The conventional techniques for recycling an electrical equipment including a hardened epoxy resin and electroconductive material has involved conventional problems that a catalyst is degraded to an extent that it can be no longer reused when a water is contained in a dissolving system. Moreover, moisture, when present in the dissolving system for treating an electrical equipment including an electroconductive material of aluminum, may react with aluminum to produce an aluminate compound which is transformed into aluminum oxide (alumina) under heating, which, in turn, may cause abnormal temperature rise to melt aluminum. This may be accompanied by formation of hydrogen which can cause danger of explosion. The present invention manages moisture content in the dissolving system by drying an object to be treated, a catalyst and a solvent prior to the dissolving treatment.

Abstract: The present invention comprises an iron complexing mixture and method of using same wherein beneficial performance and natural gas pipeline cleaning methods are employed. The synergistic improvement of combining two water-soluble metal complexing agents, THPS and IDS, prove to offer advantages in performance over the individual use of either chemical.

Abstract: One exemplary embodiment can be a process for removing one or more scale deposits formed on a surface. The process can include contacting the surface with a composition for a period of time sufficient to remove the one or more scale deposits. Generally, the composition includes an effective amount of an organic acid and/or a salt thereof, and an effective amount of an oxidizing agent.

Abstract: The invention relates to a class of novel surfactants that have utility in the recovery and/or extraction of oil.

Abstract: An aqueous fluid useful for the recovery of crude oil from a subterranean formation, including water and one or more organophosphorus materials and methods for using same.

Abstract: The present invention relates to methods using cleaning compositions for the reduction of nucleic acid contamination. More particularly, the present invention relates to cationic compositions that bind to, and can remove, extraneous nucleic acids, polynucleotides, and DNA from the surface of a substrate. Preferably, the cationic compositions include a substance with a molecular weight of 500 Da or more. The present invention finds utility as a surface decontamination agent in PCR and other related DNA amplification techniques.

Abstract: The invention relates to an environmentally friendly oil binding agent based on comminuted plastic or inorganic material, which is obtained for use as an adsorption material from the comminuted plastic or inorganic material and at least one vegetable oil, vegetable oil constituent or vegetable oil derivative. The plastic can be polystyrene, preferably in fine chips, and the vegetable oil is selected from rapeseed oil, sunflower oil, soya oil, castor oil, olive oil, linseed oil, coconut oil, palm oil, a constituent or derivative of said oils and mixtures thereof. In addition, the oil binding agent can contain a filler, such as silica sand. The areas of application for the oil binding agent are manifold and relate to the binding of oil on water, the cleaning of water in harbour basins or similar, in containers filled with liquid, the cleaning of oil-contaminated birds, the binding of oil on street surfaces and sandy soil and the cleaning of oil containers.

Abstract: The present invention relates to a detergent composition containing (a) 2 to 30% by weight of an inorganic alkali, (b) 0.5 to 20% by weight of at least one surfactant selected from an anionic surfactant and a nonionic surfactant, (c) 0.01 to 2% by weight (based on calcium ion) of a calcium salt, (d) 0.1 to 15% by weight of a calcium ion-sequestering agent, (e) 1 to 30% by weight of a water-soluble organic solvent and (f) 20 to 95% by weight of water.

Abstract: A mixture comprising A) a copolymer comprising from about 70 to about 79% by weight of units derived from ethylene, and having (a) Mw measured by gel permeation chromatography employing polystyrene standard ranging from about 50,000 up to less than 130,000 and/or (f) SSI?18; (b) density (D) ranging from about 845 to about 895 kg/m3; (c) Mw/ Mn less than 3; (d) melting point (Tm) measured by differential scanning calorimeter ranging from about 15° C. to about 60° C.; and (e) degree of crystallinity?15%, and B) an amorphous polymer having Mw ranging from about 130,000 to about 1,000,000 having degree of crystallinity?5%. In one embodiment the density and the melting point of the copolymer A) fulfill the expression Tm?1.247 D?1037. In another embodiment, the percentage content (E: % by weight) of repeating units derived from ethylene and melting point (Tm: ° C.) of the copolymer A) fulfill the expression 3.44E?206?Tm.

Abstract: A composition for cleaning a fluid delivery system includes an agent which controls the rheology of the fluid so that its apparent viscosity decreases as the fluid is subjected to a shear force. In particular applications, the viscosity of the composition is greater than 600 centipoise when it is not subject to any shear and less than 600 centipoise when subject to a shear of at least 10 1/sec. The fluid may be thixotropic or a Bingham plastic, in some instances. In a specific embodiment, the viscosity of the composition is greater than 3000 centipoise when it is not subject to shear, less than 3000 centipoise at a shear of 10 1/sec, less than 1000 centipoise at a shear of 30 1/sec, and less than 600 centipoise at a shear of 60 1/sec. Also disclosed are methods for cleaning a fluid delivery system with these compositions.

Abstract: A viscoelastic surfactant composition having improved rheological performance comprising one or more quaternized amidoamine surfactants, one or more tertiary amine amides, one or more polymeric acids and one or more electrolytes, viscosified aqueous fluids comprising the surfactant composition and methods of making and using the viscosified aqueous fluid for treating subterranean formations.

Abstract: An additive package for removing oil from solid material recovered from a well bore, e.g., drill cuttings and produced sand, is provided. The additive package includes an aqueous acidic solution containing a polymer substituted with an amino group, a halogenating agent, and optionally one or more surfactants. The polymer substituted with an amino group is preferably chitosan, and the halogenating agent is preferably a sodium hypochlorite solution. A product of the reaction of the polymer and the halogenating agent, in conjunction with the surfactant when present, is capable of causing the separation of at least a portion of the oil from the solid material.

Abstract: Cleaning compositions and methods of use thereof are described. A representative cleaning composition includes about 0.2% to about 25% of a surfactant and one or more of the following components: about 5% to about 99% of a builder, bout 5% to about 95% of a hydrotrope, about 2% to about 60% of a water conditioner, about 0.1% to about 35% of an alkali, and about 2% to about 85% of a processing aid.

Abstract: Compositions and methods for emulsifying a petroleum product that has been spilled upon a portion of the earth's surface or that is burning are based upon use of a nonionic, primary surfactant composition comprising a first ethoxylated sorbitol oleate and, preferably, a second ethoxylated sorbitol oleate, and a nonionic, secondary surfactant that is capable of stabilizing and solubilizing the primary surfactant composition such that the resulting emulsifying compositions have a hydrophilic/lipophilic balance between about 12.0 and about 13.5.

Abstract: The present invention is a composition comprising a surfactant blend of nonionic and anionic surfactants useful for the removal of oligomer deposits from polyester fibers and polyester processing equipment. The composition of the present invention includes a surfactant blend of an ethoxylated sorbitan ester and at least one additional nonionic or anionic surfactant. The combination of the ethoxylated sorbitan ester and additional surfactants used in the invention surprisingly has a synergistic effect on the removal of oligomer deposits from polyester fibers and polyester processing equipment.

Abstract: A process for removing residual polymer from polymerization equipment by combining a degelling agent, residual polymer, and solvent.

Abstract: Disclosed is a process for preparing a foamer composition having an anionic surfactant and a neutralizing amine. The process includes the steps of estimating an extent to which the anionic surfactant will decompose into acidic components under an elevated temperature range, determining an effective amount of neutralizing amine needed to sufficiently neutralize the acidic components upon the decomposition of the anionic surfactant and mixing the effective amount of neutralizing amine with the anionic surfactant. Also disclosed is a foamer composition having from about 5% to about 70% by weight anionic surfactant, from about 1% to about 20% by weight neutralizing amine, from about 2% to about 10% by weight amine-based corrosion inhibitor, from about 0% to about 20% by weight solvent, from about 1% to about 10% by weight scale inhibitor and from about 0% to about 30% water.

Abstract: The present invention relates to a chemical additive for use with treatment fluids suitable for removing contaminants from oil and gas wells. In one preferred embodiment, the additive includes: a first surface-active agent having an HLB in a range of about 5 to about 9; a second surface-active agent having an HLB in a range of about 11 to about 13; a third surface-active agent having an HLB in a range of about 14 to about 33; a coupling agent; and a coalescing solvent.

Abstract: The present invention relates to a facility parts cleaning solution for the processing of (meth)acrylic acid and/or (meth)acrylic esters and a cleaning method using the cleaning solution. An aqueous cleaning composition comprising 5 to 50 wt % of at least one alkali metal hydroxide selected from the group consisting of sodium hydroxide and potassium hydroxide, 0.01 to 1 wt % of a water-soluble amino acid, 0.001 to 0.05 wt % of N,N?-methylene bisacrylamide, and 0.001 to 0.05 wt % of azobisisobutyronitrile is used to clean facility parts for manufacturing (meth)acrylic acid and/or (meth)acrylic esters in order to easily remove polymers and deposits.

Abstract: The invention provides a method for the removal of contaminating materials from pipework, the contaminating materials comprising deposits on the pipework which cause a reduction in the effective internal diameter of the pipes and thereby effect a reduction in the rate of flow of a fluid through the pipework, the method comprising treating the contaminating materials with at least one carbamate salt. The methods is also suitable for the treatment of contaminating materials which have a particularly deleterious effect on fluid flow and comprise partial or total blockages of the pipework. The carbamate is preferably in the form of an aqueous solution, and a preferred carbamate salt is ammonium carbamate. The treatment may be carried out in the presence of an additive such as caesium carbonate or ammonium bicarbonate. Optionally the treatment may be accompanied by a pre-treatment or post-treatment with aid, this being followed by a water wash.

Abstract: A resin composition for purging away contaminants in a plastic processing machine and a method of purging contaminants from a plastic processing machine that involves the use of the resin composition. The resin composition includes a thermoplastic resin and borate ester of polyoxyalkylene.

Abstract: Acid based micro-emulsions are disclosed comprising water, an acid blend, an anionic surfactant, a nonionic surfactant, a co-solvent, a solvent and an oxidizer. The micro-emulsions have particular utility in cleaning oil sludges and drilling mud residues from well cuttings, well formations and down hole and surface oil well drilling and production equipment.

Abstract: A composition for removing paraffin, wax, or asphaltine deposits from the surface of a crude oil transmission system, such as a downhole tubular, a pipeline, or a surface tank, includes an aqueous sodium hydroxide solution containing from 18% to 25% by weight sodium hydroxide. The composition further includes an acetic acid solution containing from 30% to 55% by weight acetic acid compared to the sodium hydroxide, and a liquid aromatic hydrocarbon having from 6 to 10 carbon atoms and from 15% to 40% by weight compared to the sodium hydroxide. According to the method of the invention, the aqueous sodium hydroxide solution may be metered in a downhole tubular or a pipeline separate from the acetic acid solution, such that heat generated by the mixed composition is generated within the downhole tubular or the pipeline.

Abstract: A multi-functional concentrate composition which can be utilized to impart a desired color to a polymeric material and improve the processability thereof. The composition comprises at least one pigment, a blowing or foaming agent, and a binder component which at least allows the polymeric material to be processed at lower pressures than would otherwise be necessary for the same composition without the blowing agent.

Abstract: An apparatus containing a composition suitable for eliminating a thermosetting resin is disclosed. In the composition, tetra methyl ammonium hydroxide (TMAH) is included so as to eliminate the thermosetting resin. Accordingly, the composition is suitable for removing a dielectric layer, an organic protective layer, an insulating layer, an alignment layer, black matrices and color filters, etc. made form a thermosetting resin in an LCD or a semiconductor, and permits a reproduction or a rework of the thermosetting resin film.

Abstract: The present invention is a composition comprising a surfactant blend of nonionic and anionic surfactants useful for the removal of oligomer deposits from polyester fibers and polyester processing equipment. The composition of the present invention includes a surfactant blend of an ethoxylated sorbitan ester and at least one additional nonionic or anionic surfactant. The combination of the ethoxylated sorbitan ester and additional surfactants used in the invention surprisingly has a synergistic effect on the removal of oligomer deposits from polyester fibers and polyester processing equipment.

Abstract: The first chamber cleaning gas and the first silicon-containing film-etching gas of the present invention comprise at least one compound selected from the group consisting of FCOF, CF3OCOF and CF3OCF2OCOF, and O2 in the specific amount, and optionally other gases. The second chamber cleaning gas and the second silicon-containing film-etching gas comprise CF3COF, C3F7COF or CF2(COF)2 and O2 in specific amounts, and optionally may comprise other gases. The chamber cleaning gases and silicon-containing film etching gases of the present invention have a low global warming potential and hardly generate substances in the exhaust gases such as CF4, etc, which are harmful to the environment and have been perceived as contributing to global warming. Therefore, the gases are friendly to the global environment, and have easy handling and excellent exhaust gas treating properties. Further, the chamber cleaning gases of the invention have excellent cleaning rate.

Abstract: The present invention is a composition comprising a surfactant blend of nonionic and anionic surfactants useful for the removal of oligomer deposits from polyester fibers and polyester processing equipment. The composition of the present invention includes a surfactant blend of an ethoxylated sorbitan ester and at least one additional nonionic or anionic surfactant. The combination of the ethoxylated sorbitan ester and additional surfactants used in the invention surprisingly has a synergistic effect on the removal of oligomer deposits from polyester fibers and polyester processing equipment.

Abstract: Method for processing an article by contacting the article with a dense fluid. The article is introduced into a sealable processing chamber and the processing chamber is sealed. A dense fluid is prepared by introducing a subcritical fluid into a pressurization vessel and isolating the vessel, and then heating the subcritical fluid at essentially constant volume and essentially constant density to yield a dense fluid. At least a portion of the dense fluid is transferred from the pressurization vessel to the processing chamber, wherein the transfer of the dense fluid is driven by the difference between the pressure in the pressurization vessel and the pressure in the processing chamber, thereby pressurizing the processing chamber with transferred dense fluid. The article is contacted with the transferred dense fluid to yield a spent dense fluid and a treated article, and the spent dense fluid is separated from the treated article.

Abstract: A surfactant composition for use in well treatment, particularly for removing oil-based mud deposits from a well prior to cementing, comprises an alkylpolyglucoside in a solution of a mutual solvent for water and hydrocarbon. The composition can be used to formulate a chemical wash by dissolving the composition at a concentration of about 1%-10% (e.g. 5%) by weight in water or brine.

Abstract: The invention relates to a cleaning composition for apparatus for processing thermoplastic melts, which composition essentially comprises discrete particles capable of plastic deformation and made from a thermoplastic (A) with a melting point above 200° C. and with a crystallinity of not more than 50%, and comprises an amorphous or semicrystalline thermoplastic (B) with a processing temperature below the melting point of the thermoplastic (A). The proportion of the thermoplastic (A) is from 1 to 95% by weight and that of the thermoplastic (B) is from 5 to 95% by weight. The total of the percentage proportions by weight of (A) and (B) is always 100% or less.