Abstract: The present invention relates to methods and compositions for removing resin coatings. More particularly, the present invention relates to methods and compositions for removing coatings comprising epoxy and/or furan. Some embodiments of the methods of the present invention comprise removing a resin coating from a surface comprising the step of applying to the surface a cleaning solution comprising: a pH-adjusting agent, a solvent, and water. Other embodiments of the present invention comprise cleaning solutions comprising a pH-adjusting agent, a solvent, and water wherein the cleaning solution is suitable for use in cleaning a resin from a surface.

Abstract: A flushing composition comprising 50% to 95% by weight n-butanol, 0.1% to 3% by weight of a primary amine alkoxylate, and one or more secondary solvents. The flushing composition can also include 0.005% to 0.5% by weight of an aminated organic fatty acid compound formed from the addition of an organic fatty acid. The flushing compositions can be used to remove coatings that adhere to spray coating equipment.

Abstract: An aqueous coating removal composition containing: a) an alkoxylated aromatic alcohol, b) an amine; and c) an inorganic base is provided. The coating removal compositions are useful in cleaning coatings such as paint from substrate surfaces and may be formulated to be essentially free (or, preferably, entirely free) of organic solvents classified as volatile organic compounds or HAPS.

Abstract: A water-in-oil emulsion composition is disclosed. The composition contains (A) a solvent, (B) water, and (C) a surfactant. This composition is suitable for removing non-aqueous coatings such as paints and the like as well as waxes and greases from substrates.

Abstract: A composition for stripping and cleaning organic coatings from substrates, comprising a solution of high-boiling alcohols, preferably polyglycols, a surfactant, preferably a nonylphenol ethoxylate, and an alkali metal hydroxide, said composition being essentially free of any amines. The composition aggressively and effectively strips paints and other organic coatings without harming underlying substrates damaged by prior art strippers, over conventional or lower time periods, and at conventional or lower temperatures. One embodiment of the invention comprises from about 40% to about 98.9% by weight of a high-boiling alcohol; from about 1% to about 60% of a non-ionic surfactant; and from about 0.1% to about 10% of an alkali hydroxide or mixture of alkali hydroxide.

Abstract: The present invention relates to a process for cleaning multi-product production plants for polyester polyols with a cleaning polyol. The cleaning polyol can be used as a raw material in the production of further polyols.

Abstract: A flushing solution containing: a) a solvent component, b) an alkaline source; and c) a corrosion inhibitor component is provided. The solvent component preferably contains an alkoxylated aromatic alcohol. The corrosion inhibitor component may contain a fatty acid salt, a mixture of an aliphatic phosphate ester and a buffering agent such as boric acid or phosphoric acid, a mixture of a fatty acid salt, aliphatic phosphate ester, and buffering agent, or a mixture of a fatty acid salt and buffering agent. Alkanolamines are preferably used to form the fatty acid salt and/or as the alkaline source. The flushing solutions can be prepared in stable concentrated form and are useful for removing coatings such as paint from substrate surfaces.

Abstract: The present invention is directed to methylene chloride-free, and optionally methanol-free, paint stripper and gasket remover formulations as alternatives to methylene chloride-based paint strippers and gasket removers.

Abstract: A process for removing paint from a plastic substrate that typically includes immersing and optionally agitating the painted plastic substrate in a first chemical fluid, removing the substrate from the first chemical fluid, typically immersing and optionally agitating the substrate in a second chemical fluid, removing the substrate from the second chemical fluid, optionally immersing and optionally agitating the substrate in a third chemical fluid, where the third chemical fluid typically includes substantially the same chemicals as the second chemical fluid, rinsing the substrate, and drying the substrate. The present invention also includes a method for recycling an initially painted plastic substrate.

Abstract: An aqueous solution that has the capacity for removing tarnish and other soil from copper, silver, gold and other noble metals and alloys thereof comprises an acid, thiourea and a transition metal salt. The aqueous material can be used to treat the surfaces of such articles for the purpose of removing tarnish. Such tarnish is removed by the composition and the composition treats the metal surface to retard the re-appearance of tarnish contaminants.

Abstract: A composition for removing resist, polymeric material and/or etching residue from a substrate comprising titanium or an alloy thereof, the composition comprising hydroxylamine or a derivative thereof and at least one compound having the general formula (I) wherein: R1 and R3 are each independently selected from H, OH, CO2H, halogen, C1–C3 alkyl, C1–C3 alkoxy or (CH2)nOH wherein n is 1, 2 or 3; and R2 is selected from C9–C16 alkyl, or C9–C16 alkoxy

Abstract: An aqueous non-toxic biorational or environmentally safe composition to reduce or inhibit corrosion, rust and scale on metal surfaces comprising effective amounts of sorbic acid, salts of sorbic acid and/or derivatives thereof and a variety of hydrocarbons, esters, acids, alcohols and/or saponified fatty acids or combinations thereof derived from beeswax, vegetable waxes and/or derivatives thereof.

Abstract: A cured resin dissolving composition comprising a cellulosic gelling agent prepared in n,n-dimethylacetamide, known for its high penetration and solvency to polar resins, with a glycol-ether co-solvent, 1,8-diazabicyclo(5.4.0)undec-7-ene as a soluble amine, and a surfactant. The mixture of components form a gel-form composition while maintaining high dissolution character for cured polysulfide resins. The optimum thickness of the gel form is dependent upon the amount of the cellulose gelling agent present in the mixture. The product may be used to remove coatings and sealants present on vertical and horizontal surfaces and hard to reach areas commonly encountered when performing maintenance on aviation fuel tanks and similar equipment. Once the system has been in contact with the resin and dissolution has been allowed for a period of time, the reacted material may be wiped away or can be easily rinsed with water, an alcohol, or another hydrophilic rinse.

Abstract: A nail polish remover is formulated from a combination of solvents derived from naturally occurring materials, which combination consists essentially of a (i) a major proportion by weight (“by wt”) of esters of fatty acids having from 16 to 18 carbon atoms wherein the content of linoleic acid ester in the source vegetable oil is less than 60%, and (ii) a minor proportion by weight of a lower (C1–C5) alkyl lactate. The nail polish remover is highly effective yet has good skin conditioning properties, is non-toxic and non-flammable. A visible residue several micrometers thick provides a desirable gloss on the cleaned nails unless it is washed off.

Abstract: A composition and method is provided capable of removing contaminants from the surface of a gelatin capsule, such as a paint ball, to allow the gelatin capsules to be used for their intended use. The composition comprising, by weight, about 70 to 99.9 percent of a water-soluble alcohol, about 0.1 to 30 percent water, about 0.1 to 10 percent of a volatile silicone, and about 0.1 to 1 percent of a non-volatile silicone. Furthermore, the composition prevents excessive swelling of the gelatin outer shell of the gelatin encapsulated product. A method is also provided for cleaning a gelatin encapsulated product comprising the steps of contacting the gelatin encapsulated product with a cleaning composition, separating the gelatin encapsulated product from the cleaner, and drying the gelatin encapsulated product. The gelatin capsule may be a paintball. The composition may include additives to improve the performance of the gelatin capsules.

Abstract: Silane type polyfunctional coupling agents and adhesion promoters are added to major amounts by volume of environmentally-safe organic wipe solvents generally having a low vapor pressure to form novel wipe solvent compositions for cleaning and priming the surface of a substrate such as that of metal, composite, glass, plastic or other material prior to the application of coatings of paint, adhesive and/or similar layers and/or prior to the lamination of such substrates to each other or to support structures such as honeycomb bodies, while simultaneously depositing and bonding the coupling agent and adhesion promoter to the cleaned surface of the substrate.

Abstract: A purge solution for removing water-based dehydrated paint residues from a paint delivery system includes 2–15 total weight percent of a purge concentrate diluted with solvent. The concentrate includes 20–99.5 total weight percent of a C4 alcohol or an alkoxylated C4 alcohol, and 0.5–30 total weight percent of an amine.

Abstract: A composition for removing a copper-compatible resist includes about 10% to about 30% by weight of an amine compound, about 10% to about 80% by weight of a glycolether compound, and about 10% to about 80% by weight of a polar solvent.

Abstract: A solvent composition for dissolving plastic comprises at least either isopropyl bromide or n-propyl bromide, and at least either nitromethane or nitroethane. The content of the above-mentioned at least either nitromethane or nitroethane is 5 through 50 wt % with respect to the entire amount of the solvent.

Abstract: This invention relates to a method to facilitate the removal of adherent polymeric films from a hard surface occasioned by the evaporation of solvent from compositions containing an anionic acrylates copolymer, the method comprising incorporating a phosphate ester surfactant into the compositions, and washing the film from the surface to which it adheres.

Abstract: This invention concerns paint stripping compositions which are particularly suitable for stripping paint off aircraft. The basic composition consists of a mixture of specific amounts of the following substances: aromatic hydrocarbons, dimethyl formamide; N-methylpyrrolidone; benzyl alcohol; alkanolamine; wax; wetting agent; and thickening agent. A modified composition may also contain dimethyl sulfoxide and a terpene solvent. The invention also includes the method of stripping paint from an aircraft by applying the new stripping composition onto the surface of the aircraft allowing the paint to soften and loosen under the action of the composition, or to penetrate under the paint coating, and then gently removing both the loosened paint and the stripping composition from the aircraft surface without damaging the surface.

Abstract: The present invention relates to, inter alia, a composition for stripping photoresist from substrates comprising: about 5% to about 50% by weight of an alkyl substituted pyrrolidone, an alkyl substituted piperidone, or a mixture thereof, about 0.2% to about 20% of one or more alkanolamines, and about 50% to about 94% of a sulfoxide, sulfoxone, or mixture thereof. Advantageously, the composition can remove copper from a copper substrate at a rate of less than about 10 ? per minute when the substrate is immersed in the composition which is held at 70° C. for 30 minutes and rotated relative to the composition at about 200 revolutions per minute.

Abstract: An aqueous solution that has the capacity for removing tarnish and other soil from copper, silver, gold and other noble metals and alloys thereof comprises an acid, thiourea and a transition metal salt. The aqueous material can be used to treat the surfaces of such articles for the purpose of removing tarnish. Such tarnish is removed by the composition and the composition treats the metal surface to retard the re-appearance of tarnish contaminants.

Abstract: The cleaning agent described above comprises a surfactant and an organic solvent, and the cleaning method described above is characterized by allowing the cleaning agent described above to flow on the surface of the material to be treated at a high speed to thereby clean the above surface. According to the present invention, deposits adhering firmly to a surface of a material to be treated can readily be removed without damaging the material to be treated.

Abstract: Compositions of the invention include: a surfactant having an HLB value from 1 to 10; and a compound of formula (I): where; x is an integer from 2 to 6, y is an integer from 0 to 5, R is a bond or (C1-C4)alkylene, R1 is a hydrogen, halo, aryl, (C1-C4)alkyl, heteroaryl, cycloalkyl, or heterocycyl, R2 is independently selected from hydrogen, halo, (C1-C4)alkyl, (C1-C4)alkoxy, (C2-C4) alkenylene. Methods forming stable aqueous and non-aqueous solutions of the same are also provided.

Abstract: A concentrate composition for removing coatings from surfaces such as paint application equipment is provided, which comprises:

Abstract: This invention concerns a composition useful as a paint remover, comprising: an organic carbonate, an alcohol, an activator, hydrogen peroxide, and water. The alcohol may be benzyl alcohol. The organic carbonate may be propylene carbonate, ethylene carbonate, or combination thereof. The activator may be an alkyl-substituted cycloalkane (naphthene), a soy oil, an alkyl soyate, or combination thereof.

Abstract: A composition useful as a paint remover which may include a carbonate, a dibasic ester and a mono-ester. The paint stripping composition may also contain an organic sulfur-containing compound such as dimethyl sulfoxide (DMSO), a glycol ether, a ketone, or combination thereof. The composition may be used in a process for removing paint by applying it to a painted surface. A degreasing composition is also disclosed which may comprise a carbonate and a alkyl-substituted cyclo-alkane such as naphthene. The compositions have several important attributes, including low toxicity and high efficacy in removing paint and coatings.

Abstract: A UV cured floor finish can be removed from a floor by applying to the cured finish an inhomogeneous stripper composition containing at least one polar solvent, allowing the stripper composition to contact the finish for sufficient time to soften the finish, and removing the softened finish from the floor by mopping, vacuuming, mild abrasion or other measures that do not remove substantial portions of the floor. Preferably the polar solvent is denser than water and preferably the stripper composition has a diffusion rate through the cured finish greater than about 7×10−7 g/cm2/sec. Strippable floor finish kits can be manufactured by combining a UV curable floor finish composition and an inhomogeneous stripper composition containing at least one polar solvent.

Abstract: An aqueous non-toxic biorational or environmentally safe composition to reduce or inhibit corrosion, rust and scale on metal surfaces comprising effective amounts of sorbic acid, salts of sorbic acid and/or derivatives thereof and a variety of hydrocarbons, esters, acids, alcohols and/or saponified fatty acids or combinations thereof derived from beeswax, vegetable waxes and/or derivatives thereof.

Abstract: A cleaning solution is used to remove a byproduct derived from a decomposed substance of a process gas containing C and F. The cleaning solution contains 75 wt % N-methyl-2-pyrrolidone, 15 wt % ethylene glycol monobutyl ether, 0.5 wt % surfactant, and 9.5 wt % water. The content of an alkali metal in the cleaning solution is set to be less than 10 ppb.

Abstract: A method is provided for removing paint from plastic parts by treating the painted part with a solvent mixture. The solvent mixture used to remove the paint is a mixture of a high-boiling pyrrolidone or piperidone (lactam) solvent and an aqueous mineral acid, optionally with a surfactant added.

Abstract: A silicone dissolving composition includes an organo-acid compound such as sulfonic acid or phosphinic acid, a solvent miscible with the organo-acid and able to swell a silicone, a thickener and a small amount of mineral acid. Silicone films dissolve to a liquefied mass capable of being wiped from a substrate in a matter of minutes. The removal of automotive, electrical, and construction sealants and gaskets is simplified with the use of such a silicone dissolving composition.

Abstract: An aqueous composition suitable as an automobile exterior cleaner comprising about 1% to about 5% by weight of an alkyl glycoside surfactant; from about 0.05% to about 5% by weight of an antioxidant; from about 0.02 to about 5% by weight of an ultraviolet absorber; from about 0.01 to about 10% by weight of a commercially available surfactant blend; from about 0.005% to about 1% by weight of an antimicrobial preservative; from about 0% by weight to about 8% by weight of magnesium chloride or magnesium sulfate heptahydrate, and the balance of the formulation being water with less that 2% by weight of the formulation being fragrance and colorant components. The composition reduces dulling of the gloss caused by antioxidants and ultraviolet light.

Abstract: A water-in-oil emulsion composition is disclosed. The composition contains (A) a solvent, (B) water, and (C) a surfactant. This composition is suitable for removing non-aqueous coatings such as paints and the like as well as waxes and greases from substrates.

Abstract: Improved stripper formulations for use on metal cross linked floor finishes comprise a compound selected from the group consisting of a chelant containing an amine functionality and a metal chelating ligand, an alkali metal salt of the chelant, an aliphatic or aromatic polyamine, the aromatic polyamine having the amine functionality outside the aromatic ring, and mixtures of the chelant and polyamine. The stripper formulations are applied to metal cross linked floor finishes in a process for stripping such finishes.

Abstract: Compositions of the invention include: (a) a terpene compound; (b) a surfactant; and (c) an ethoxylated aryl alcohol.

Abstract: A cleaning composition for removing organic deposits from hard to reach surfaces. In its basic embodiment, the cleaning composition comprises: a) a water miscible solvent; b) an inorganic salt in crystal form; and c) water. The inorganic salt in crystal form comprises from about 30 to about 70% weight of the total composition.

Abstract: This invention concerns paint stripping compositions which are particularly suitable for stripping paint off aircraft. The basic composition consists of a mixture of specific amounts of the following substances: aromatic hydrocarbons, dimethyl formamide; N-methylpyrrolidone; benzyl alcohol; alkanolamine; wax; wetting agent; and thickening agent. A modified composition may also contain dimethyl sulfoxide and a terpene solvent. The invention also includes the method of stripping paint from an aircraft by applying the new stripping composition onto the surface of the aircraft allowing the paint to soften and loosen under the action of the composition, or to penetrate under the paint coating, and then gently removing both the loosened paint and the stripping composition from the aircraft surface without damaging the surface.

Abstract: An aqueous coating removal composition containing: a) an alkoxylated aromatic alcohol, b) an amine; and c) an inorganic base is provided. The coating removal compositions are useful in cleaning coatings such as paint from substrate surfaces and may be formulated to be essentially free (or, preferably, entirely free) of organic solvents classified as volatile organic compounds or HAPS.

Abstract: A composition and method for treating oversprayed paints in paint spray booths is provided. The composition includes an aqueous solution of a compound such as chitosan, and a complex metal salt, such as aluminum chlorohydrate, capable of flocculating the oversprayed paint, and optionally, bentonite clay. The composition is useful for detackifying and flocculating oversprayed paint, and is particularly useful as a liquid concentrate for the addition to wash systems in paint spray booths for water-based and solvent-based paints. The composition is also useful in decreasing the time for phase separation of the organic phase and the aqueous phase in solvent-based removal processes.

Abstract: A terpene-free cleaning composition containing: (a) an oil-soluble anionic surfactant; (b) a water-soluble anionic surfactant; (c) a primary solvent consisting of a C1-4 alkyl ester; (d) a short-chain cosurfactant; and (e) water.

Abstract: The present invention is directed to methylene chloride-free, and optionally methanol-free, paint stripper and gasket remover formulations as alternatives to methylene chloride-based paint strippers and gasket removers.

Abstract: A method of enhancing removal of photoresist and/or resist residue from a substrate includes exposing the substrate to an environmentally friendly, non-hazardous co-solvent mixture comprising a carbonate, an oxidizer and an accelerator. The stripping process may be performed under ambient conditions, or in the presence of a supercritical fluid such as supercritical carbon dioxide with the supercritical cleaning step itself being a desirable “green” process. In one embodiment, the co-solvent mixture includes propylene carbonate, benzyl alcohol, hydrogen peroxide and an accelerator such as formic acid. If desired, supercritical carbon dioxide in combination with a second co-solvent mixture may be subsequently applied to the substrate to rinse and dry the substrate. In one embodiment, the second co-solvent mixture includes a lower alkyl alcohol such as isopropyl alcohol.

Abstract: A method of cleaning a microelectronic substrate is carried out by providing a cleaning fluid, the cleaning fluid comprising an adduct of hydrogen fluoride with a Lewis base in a carbon dioxide solvent; and then cleaning the substrate by contacting the substrate to the cleaning fluid for a time sufficient to clean the substrate.

Abstract: The cleaning composition of the present invention is characterized by containing N-hydroxyformamide. The cleaning composition is capable of easily removing patterned photoresist masks or resist residues remaining on substrates after the etching process or removing resist residues remaining after the etching process and the subsequent ashing process within a short period of time without causing the corrosion of wiring materials and insulating films, thereby ensuring the fine processing to provide high-precision wiring circuits.

Abstract: Composition for removal of nail polish, plaster, adhesives, discolorations or other adhesive products on the skin and/or nails, which to at least 20% includes one or more esters of one or more natural oils, which further includes one or more synthetic esters, and which is substantially free from volatile solvents. The invention also refers to a composition of the same type for paintbrush wash and/or removal of industrial paint or other adhesive products on objects.

Abstract: An aerosol UV dye cleaner. In a described embodiment, an apparatus for cleaning UV dye from an air conditioning system includes a UV dye cleaner, a propellant and an aerosol can having the cleaner and the propellant pressurized therein. The apparatus is particularly useful in servicing automotive air conditioning systems in which access to system components is restricted.

Abstract: Particulate and metal ion contamination is removed from a surface, such as a semiconductor wafer containing copper damascene or dual damascene features, employing aqueous composition comprising a fluoride containing compound; a dicarboxylic acid and/or salt thereof; and a hydroxycarboxylic acid and/or salt thereof.

Abstract: The invention relates to a method for stripping paint from surfaces, comprising: a) contacting a painted surface with a paint stripping composition, and b) separating at least some of the paint contacted with the paint stripping composition from the painted surface; c) wherein the paint stripping composition comprises: i) from about 60 to about 99% by volume of one or more environmentally acceptable esters selected from the group consisting of t-butyl acetate, a carboxylic acid methyl ester having a caboxylate residue of at least three carbon atoms, an ester of lactic acid, an ester of oxalic acid having two alkoxy residues wherein each alkoxy residue has at least three carbon atoms, diethyl tartrate, triethyl citrate, tributyl citrate, and one or more sugar esters; and ii) dimethyl sulfoxide which is present in an amount from about 1 to about 40% by volume of the composition.