Paints, varnishes, lacquers, or enamels, removal

A film removing composition consisting essentially of at least one halogenated hydrocarbon solvent as a major solvent and a pressure-sensitive adhesive component such as synthetic resins, and mixtures of natural rubber or synthetic rubbers and tackifiers. When the film removing composition is applied...     

Constant boiling admixtures are formed with 1,2-dichloro-1-fluoroethane, acetone, and methanol and applied to painted surfaces to remove paint therefrom.

A stripping solution comprising between 80 and 98% H.sub.2 SO.sub.4, between 0.5 and 4% HClO.sub.4, between 0.5 and 4% CrO.sub.3 and H.sub.2 O. The principal application of the solution is to remove polymerized photoresist layers formed during the manufacture of semiconductor devices.

Porous articles impregnated with certain anaerobic polymerizable sealants and having a coating of such sealant on their surface can have such coating removed by dissolving the sealant in an aqueous solution of a surfactant having the general formula X.sup.1 --O(C.sub.2 H.sub.4 O).sub.x X.sup.2. The removal...     

Disclosed is a method and composition useful for stripping paint films. The stripping composition is phenolfree and contains a synergistic combination of amine compounds in an aqueous alkaline solution and stripping is effected by contacting the surface with the solution.

An acidic wood finish remover formulation which consists essentially of a mixture of hydroxyacetic acid in methylene chloride solution. A vapor pressure depressant is present, such as paraffin and a solubilizer for the wax, such as toluene is present. An anionic detergent consisting essentially of linear...     

The photoreceptor cleaning composition is provided which includes a lower alcohol, ultrapure water and a surfactant, 3,5-dimethyl-1-hexyn-3-ol. This cleaning solution is 100% volatile, water-clear, and is found to contain no solids or colloidal matter, in addition to being contaminant- and particulate-free,...     

An aqueous solution for alkaline stripping of metallic surfaces having a resist coating on at least a portion of the surface thereof, the resist coating normally being based upon polyvinyl chloride, such as polyvinyl chloride contained in a base emulsion for a photo resist material. The alkaline stripper...     

Disclosed is a method of conducting under selected temperature conditions and with agitation a chemical operation which requires agitating a liquid phase under selected conditions, by enclosing the involved starting materials in a liquid-tightly enclosed cylindrical operating zone by a zone-enclosure...     

A process for removing a photoresist stripper from a substrate comprising rinsing the substrate with a composition comprising from about 65 to about 98.5 weight percent methylene chloride and from about 1.5 to about 35 weight percent of an alcohol selected from the group consisting of isopropanol, tertiary...     

Residual pressure-sensitive adhesive is removed from surfaces by applying a composition containing a swelling agent for the adhesive and a detackifying agent for the adhesive to the residual material, allowing the composition to remain in contact with the adhesive long enough to swell and detackify the...     

Polypropylene glycols having an average molecular weight of from 100 to 1,000 have been found useful in increasing the operational efficiency of paint and lacquer detackifying compositions consisting of a cationic polymer and the water-soluble salt of an amphoteric metal used in paint and lacquer spray...     

Constant boiling binary admixtures are formed by 1,2-dichloro-1,1,2-trifluoroethane with trichlorofluoromethane, with diethyl ether, and with dichloromethane. A constant boiling ternary admixture is formed by 1,2-dichloro-1,1,2-trifluoroethane, diethyl ether, and 1,2-dibromo-1,1,2,2-tetrafluoroethane.

Vinyl halide polymers are removed from the internal surfaces of reaction equipment with a solvent and the solvent recovered by: (1) contacting the polymer-containing solvent with steam forming a slurry; (2) cooling the slurry to form a crumbly precipitate; (3) separating the resulting slurry into an...     

A solvent composition which comprises 1,1,1-trichloroethane and an aliphatic alcohol containing at least two carbon atoms in amounts such that the composition boils in the range from the boiling point of the constant boiling mixture of 1,1,1-trichloroethane and the alcohol up to 10.degree. C above the...     

Constant boiling binary admixtures are formed by 1,2-dichloro-1,1-difluoroethane (F-132B) with acetone, with methanol, and with ethanol; and a constant boiling ternary admixture is formed with diethyl ether and ethanol. Constant boiling binary admixtures are formed by 1,1,2-trifluoroethane (F-143) with...     

Constant boiling binary admixtures are formed by 1,2-dichloro-1,1,2-trifluoroethane with trichlorofluoromethane, with diethyl ether, and with dichloromethane. A constant boiling ternary admixture is formed by 1,2-dichloro-1,1,2-trifluoroethane, diethyl ether, and 1,2-dibromo-1,1,2,2-tetrafluoroethane.

This invention relates to azeotropic compositions of 1,2-dichloro-1-fluoroethane or of 1,2-dichloro-1,2-difluoroethane with certain alcohols, ethers, or ketones.

In the aqueous polymerization of vinyl chloride and vinylidene chloride polymers and copolymers in reactors having exposed metal surfaces, undesirable thin polymer build up is noted on the metal surface exposed to the polymerization media. Such polymer build up is substantially reduced if before the...     

Constant boiling binary admixtures are formed by 1,2-dichloro-1,1-difluoroethane (F-132B) with acetone, with methanol, and with ethanol; and a constant boiling ternary admixture is formed with diethyl ether and ethanol. Constant boiling binary admixtures are formed by 1,1,2-trifluoroethane (F-143) with...     

Azeotropic mixtures of 3-methylpentane and 1,2-dichloro-1,1-difluoroethane useful in solvent cleaning applications.

This composition includes 50 to 85% by weight water, 10 to 25% relatively non-volatile inert organic solvent, 0.1 to 5% of a medium foamer detergent and 5 to 15% of a N-alkyl-2-pyrrolidone lubricant.

An automatic method and system for removing organic contaminants from glassware and metals, wherein preset timers and a temperature controller direct a three-stage pyrolysis-oxidation process continually monitored by combustion detection systems and applied within a high temperature oven incorporating...     

Constant boiling binary admixtures are formed by 1,2-dichloro-1,1,2-trifluoroethane with trichlorofluoromethane, with diethyl ether, and with dichloromethane. A constant boiling ternary admixture is formed by 1,2-dichloro-1,1,2-trifluoroethane, diethyl ether, and 1,2-dibromo-1,1,2,2-tetrafluoroethane.

Hardened photolacquer on semi-conductors and integrated circuits for etching purposes are stripped therefrom employing, preferably at a temperature above 75.degree. C., a stripping composition consisting essentially of 20-50 weight percent of at least one alkylbenzenesulfonic acid of 12-20 carbon, and...     

This invention relates to azeotropic compositions of 1,2-dichloro-1-fluoroethane or of 1,2-dichloro-1,2-difluoroethane with certain alcohols, ethers, or ketones.

Gelled polyamides are contacted with organic hydroxyl group-containing compounds to so modify the physical nature of the gels as to permit their flushing from process equipment.

A coating remover comprised of a substantially uniform mixture of about 5 to 35 percent by weight of N-methyl-2-pyrrolidone and the balance comprised of a water-base carrier containing about 10 to 35 percent by weight organic surfactants therein so that when such liquid mixture is admixed with a gas,...     

Constant boiling binary admixtures are formed by 1,2-dichloro-1,1-difluoroethane (F-132B) with acetone, with methanol, and with ethanol; and a constant boiling ternary admixture is formed with diethyl ether and ethanol. Constant boiling binary admixtures are formed by 1,1,2-trifluoroethane (F-143) with...     

This relates to a method and solution for removing exposed photopolymer film resist from a substrate. The substrate having the photoresist thereon is contacted with a solution consisting essentially of acid selected from the group consisting of the first three carboxylic acids and their halogenated derivatives,...     

This invention relates to azeotropic compositions of 1,2-dichloro-1-fluoroethane or of 1,2-dichloro-1,2-difluoroethane with certain alcohols, ethers, or ketones.

Solvent mixtures which are eminently useful for the removal of toner from items used in copying and duplicating processes consist of 1,1,2-trichloro-1,2,2-trifluoroethane, acetone and methylal.

Constant boiling binary admixtures are formed by 1,2-dichloro-1,1-difluoroethane (F-132B) with acetone, with methanol, and with ethanol; and a constant boiling ternary admixture is formed with diethyl ether and ethanol. Constant boiling binary admixtures are formed by 1,1,2-trifluoroethane (F-143) with...     

Foundry sand particles are regenerated by contact with a liquid containing ither a peroxide oxidant or an oxidizing salt to remove resinous binder material accumulated around each of the particles.

A composition for trapping and removing paint from a paint spray booth characterized by an aqueous solution-suspension containing at least 4 percent by weight of a water softener, a concentration within the range of 4-25 percent by weight of a colloid that will pick up moisture and swell and remain stable...     

An elongated, hollow, cylindrical body is provided with an end wall at one end through which a liquid inlet opens and the other end of the body is open. The inside diameter of the body is of a size to snugly and slidably receive a paint roller therein and the length of the interior of the body is greater...     

Used carrier particles having combustible resinous material on the surface of the core are treated by heating the particles in a fluidized condition to a temperature such as to ignite and burn off the resinous material therefrom.

Carboxylate cement is removed from dental products by use of a solution containing an organic acid having a COOH radical. A preferred organic acid is citric acid.

This invention relates to azeotropic compositions of 1,2-dichloro-1-fluoroethane or of 1,2-dichloro-1,2-difluoroethane with certain alcohols, ethers, or ketones.

This invention relates to azeotropic compositions of 1,2-dichloro-1-fluoroethane or of 1,2-dichloro-1,2-difluoroethane with certain alcohols, ethers, or ketones.

This invention relates to azeotropic compositions of 1,2-dichloro-1-fluoroethane or of 1,2-dichloro-1,2-difluoroethane with certain alcohols, ethers, or ketones.

Constant boiling binary admixtures are formed by 1,2-dichloro-1,1-difluoroethane (F-132B) with acetone, with methanol, and with ethanol; and a constant boiling ternary admixture is formed with diethyl ether and ethanol. Constant boiling binary admixtures are formed by 1,1,2-trifluoroethane (F-143) with...     

This invention relates to the impregnation of rigid porous articles, particularly metal castings. In its preferred form the impregnant is a liquid mixture of monofunctional (meth)acrylic ester and a relatively small proportion of polyfunctional (meth)acrylic ester to provide a cross linked product on...     

Mixtures of 1-propanol, water and certain perfluoro compounds form excellent drying agents for silicon based devices. The mixtures have good wetting properties and form azeotropic mixtures in the vapor phase.

An improved surfactant system comprising a mixture of a non-ionic detergent, a tertiary amine oxide, and a quaternary ammonium halide. The surfactant system of the invention is combined with other ingredients to yield 14 different commercially useful cleaners. Each of these cleaners has improved detergent...     

A composition for trapping and removing paint from a paint spray booth characterized by an aqueous solution-suspension containing at least 4 percent by weight of a water softener, a concentration within the range of 4-25 percent by weight of a colloid that will pick up moisture and swell and remain stable...     

A solution of tetramethylammonium hydroxide and a surfactant in a lower alcohol solubilizes photoresist films without attacking materials found in integrated circuit devices so that a subsequent 1,1,1-trichloroethane rinse completely removes the photoresist.

This invention relates to a cleaning composition for records, tape heads, magnetic surfaces, film, and the like. The cleaning composition comprises a mixture of fluorinated hydrocarbon, alcohol, antistatic agent, and lubricant in specific proportions. By the use of the cleaning solution of the present...     

A method for removing a reflective decal from a vehicle's body surface, especially a baked enamel surface as would be found on a truck or an automobile. The method includes the steps of contacting the decal, for a period of time sufficient to loosen the decal from the surface, with a composition consisting...     

Coatings, such as paint or oil, are stripped from the surface of a coated object by circulating a stream of a stripping composition in a gaseous state at ambient temperature and pressure into contact with the surface. The stripping composition is normally a liquid at ambient temperature and pressure...     

Coatings, such as paint or oil, are stripped from the surface of a coated object by circulating a stream of a stripping composition in a gaseous state at ambient temperature and pressure into contact with the surface. The stripping composition is normally a liquid at ambient temperature and pressure...     

Stripping solutions, free from phenol compounds, comprising at least 30 weight percent of an unsubstituted or alkyl substituted aryl sulfonic acid have been found effective for removal of organic polymeric substances from inorganic substrates. The novel compositions comprise 30-80 percent of one or more...     

A drum-type rotary scraper, for use in a corner, scraping a surface by the snapping reformation of elastically restrained portions of flexible fingers deformed from their normal circular path by the constraint of the planes forming the corner. By way of an example, a cylindrical bird-cage broom whose...     

A high flash point solvent for dissolving a copolymer of vinylidene fluor and hexafluoropropylene. The solvent is comprised of acetone, methylene chloride and either amyl acetate or butyl acetate.

A composition suitable for cleaning printed circuit boards consists of 89.5% to 96.9% 1,1,2-trichloro-1,2,2-trifluoroethane, 2.5% to 8% ethanol, 0.1% to 3% methyl acetate and preferably 0.01% to 0.5% nitromethane.

A developer for use with a lithographic photo-sensitive medium of a polyether resin, comprising a compound of the formula: RO--CH.sub.2 --CH.sub.2 --O--.sub.k R.sup.1 or ROCH.sub.2 CH.sub.2 OR.sup.2 (wherein R represents an alkyl group with carbon number of 1 to 4, R.sup.1 represents hydrogen or an acyl...     

A composition for cleaning printed circuit boards contains 92 to 95 weight percent 1,1,2-trichloro-1,2,2-trifluoroethane, 5 to 7 weight percent methanol and 0.05 to 1 weight percent methyl acetate.

A paint stripper composition able to remove a variety of paint systems employing methylene chloride as the active solvent for the composition further includes an amine-glycolate acid salt having a pH of 5 which aids in the swelling of the subsurface of the paint system that is to be removed, thus allowing...     

A composition containing organic compounds for plasticizing resins, an emulsifying agent, a thickening and suspending agent and possibly an inert filler and/or water, is applied to an emulsion-painted wallpaper surface and left for several hours to allow the compounds to act on the binder resins in the...     

A cleaning composition which includes N-methyl-2-pyrrolidone and an alkanolamine, and use thereof for cleaning substrates.

Protective and residual organic coatings are stripped from a surface by substantially sealing the surface from the atmosphere to provide a stripping zone, forming a stream of gaseous stripping composition in an evaporation zone, contacting the surface with the stripping composition in the gaseous state...     

A non-flammable, non-acid, non-caustic stripper for paint and varnish which is thixotropic and suitable for application by brush or spray. A method for making the stripper easily and inexpensively is also disclosed.

A method for removing unwanted films from surfaces is described in which the unwanted film is first dissolved in a suitable composition, the properties of the composition then changes so that the dissolved, unwanted film no longer remains soluble in the composition and comes out of solution in a form...     

The invention disclosed provides a new improved paint repellent composition and method of using same such as, for example, a coating in a spray booth. In particular, the present paint repellent composition includes a mixture of hydrocarbon oils, sodium chloride, sugar, aluminum silicate, sand and acetic...     

A method and formulation for removing stains from vinyl surfaces which comprises the use of a formulation containing a solvent selected from the group consisting of ethylene glycol monoalkyl ethers and ethylene glycol monoalkyl ether acetates, along with an aqueous solution of sodium hypochlorite or...     

Vinyl decals are removed from a painted surface without damaging the painted surface by contacting the decal with a composition consisting essentially of one or more of the following aromatic solvents: toluene, xylene and aromatic naphtha; and methyl ethyl ketone or a mixture of glycol ethers. The composition...     

A cavitation nozzle assembly is described for discharging a high velocity jet of liquid with cavitation bubbles therein. The nozzle assembly includes a supply chamber having an upstream portion divergent in a downstream direction, a downstream portion convergent in the downstream direction, and a central...     

An aqueous composition which produces a clear, protective coating on a wide variety of surfaces, consisting essentially of a suspension of vinylidene polymers, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, a halogenated polysilane surfactant, sodium benzoate rust proofer, defoamer...     

An aqueous alkaline composition having increased effectiveness and bath life when used at elevated temperatures to remove siccative coatings from substrates coated therewith containing one or more alkaline compounds and at least two of the following three materials: tetrahydrofurfuryl alcohol, an ethoxylated...     

Paint is removed from a painted surface by applying to the surface a solution containing an alkali metal hydroxide and a polyacrylate thickening agent having a viscosity which decreases above a predetermined transition pH. The initial pH of the composition is adjusted to just above the transition pH...     

A paint roller is cleaned by being slowly rotated while immersed in a body of cleaning liquid within a container. The container is then drained and jets of rinse liquid are directed against the roller while it is rapidly rotated to free it of cleaning liquid. A final rapid rotation of the roller is conducted...     

Vinyl decals are removed from a painted surface by contacting the decal with a composition consisting essentially of ethylene glycol monobutyl ether and one or more of the following aromatic solvents: toluene, xylene and aromatic naphtha. The composition may optionally contain ethylene glycol monoethyl...     

A stripper system comprises: a stripper composition for treating a surface so as to give removable treatment product for stripping at least a portion of said surface, said composition comprising at least one component chosen from: alkali metal oxides, alkali metal hydroxides, alkali metal carbonates,...     

A process for the removal of poly(arylene sulfide) deposits on metal surfaces is provided by contacting the deposit with at least one diaryl ether under temperature conditions and for a time sufficient to remove said poly(arylene sulfide) deposits. A process for the cleansing of metal parts having poly(arylene...     

A method of removing coatings from glass fibers in which the fibers are introduced into a bed fluidized by a gas at elevated temperatures, the gas converting the coatings to substances which leave the bed with the gases.

The present invention relates to a membrane remover/etchant solution including an organic solvent, a strong ionizable acid, a weak acid and an acid stable surfactant. The present invention further includes a method for removing a membrane and etching a concrete surface in which the membrane remover/etchant...     

The fingernail water removal activity of aqueous acetone based polish removers is lowered by incorporating therein an amine salt of an anionic amidized hydrolyzed collagen, preferably in combination with an acid addition salt of amidized trialkylamine cationic surfactant.

A cryogenic liquid is used to directly or indirectly cool solid or liquid contaminants adhering to apparatus surfaces to effect a change in the physical characteristics of the contaminants and thereby render them more susceptible to removal operations. The direct technique contemplates providing a source...     

Cleaning solutions and processes for removing contaminating sealants used in the automotive and allied industries from water-insoluble surfaces. The cleaning solutions are aqueous solutions containing at least one C.sub.5 -C.sub.9 alkanoic acid, and optionally, other ingredients such as alkali metal...     

A cold paint stripper composition and replenisher composition for removing paint from solid surfaces comprising an aqueous composition containing a chloroacetic acid, a relatively low concentration of a C.sub.1 -C.sub.3 chlorinated hydrocarbon, an anionic sulfonate, naphthenic acid, a sorbitan C.sub.12...     

As a stripper for a radiosensitive resist formed of a poly(fluoroalkyl .alpha.-haloacrylate) or a copolymer thereof, there is used a solution which contains 0.1 to 40 wt. % of an alkali metal alkoxide, an alkali metal hydroxide or a tetraalkylammonium hydroxide in a substantially non-aqueous polar solvent...     

Superior solder flux, e.g., rosin flux, removal compositions are disclosed which have no flash point and are substantially non-corrosive toward aluminum. These compositions consist of about 0.5 to less than 2% methanol with about 3 to 10% of one or more alcohols containing 2-5 carbon atoms the balance...     

A fingernail refinishing product and method for dissolving and removing old lacquer nail polish, for softening and conditioning fingernails, cuticles and surrounding skin, and for depositing a clear nail-strengthening priming coat, all simultaneously, in preparation for the application of fresh nail...     

There is disclosed a nail lacquer and enamel remover, composed primarily of methylene chloride combined with various other ingredients such as amyl acetate, butyl acetate, ethyl acetate or acetone and kaydol, aerosol, methyl glucose ether or water. The improvement of the invention as compared with other...     

A system is provided for decomposing and removing cured coatings of paint or varnish or the like from surfaces by first applying a stripper composition to the surface to be stripped, thereupon applying cover means over the applied stripper composition, permitting the stripper composition to react with...     

Acid-reactive organic and inorganic matter, such as stains and/or deposits, is removed from substrates by contacting such matter with a composition containing urea and sulfuric acid in which the urea/sulfuric acid molar ratio is less than 2. The urea-sulfuric acid compositions may optionally contain...     

The liquid detergent composition of the invention comprises a halogenated hydrocarbon solvent, e.g. methylene chloride, an anionic and/or non-ionic surface active agents, a quaternary ammonium hydroxide, e.g. tetramethyl ammonium hydroxide and choline, and, optionally, a lower aliphatic alcohol, e.g....     

A liquid phase cleaner-solvent consisting essentially of from about 50% to about 90% by weight of water, less than 10% by weight of sodium chloride, from about 1/2 to 1% to about 10% by weight of coconut amide, from about 1/2 of 1% to about 8% by weight of a tall oil fatty acid, from about 1% to about...     

A detergent cleaning composition which includes a combination of a furan type alcohol, a substance having an aroma, a non-ionic surfactant and an emulsifier. The cleaner is biodegradable, meets environmental and health standards and is an effective cleaner of graffiti and other filth from the surface...     

A paint roller cleaning device comprising an annular sleeve adapted to have an interference fit with a pad on a roller of a paint roller, liquid passage means within the sleeve, liquid entry means to said liquid passage means and liquid outlet means communicating with the liquid passage means on the...     

Liquid, solvent-free, aqueous compositions for the removal of film-forming polymeric protective coatings. The compositions contain a combination of alkanolamines and hydrotropic substances acting as solution promoters. Optionally, pH-regulating acids, thickeners, surfactants, corrosion inhibitors, biocides...     

An aqueous alkaline paint stripper composition which forms a foam when dispersed from an aerosol container comprising: A. from 47 to 94% by weight of an aqueous solution containing from about 5 to about 40% by weight of at least one strongly alkaline substance, B. from 1 to 8% by weight of at least one...     

A cleaning agent for use as an industrial heavy duty cleaner, as well as being a hand cleaner and an all purpose cleaner. The cleaning agent has citric oil as its basic ingredient, and preferably includes a distilled, stabilized citric oil mixture including distilled D-Limonene, stearic and oleic acids,...     

Paint spray booth wastes which have been collected in a water wash are easily detackified and removed from the wash water by adjusting the pH of the wash water to a pH of about 7.0 to 12.0 with an alkali metal silicate and contacting the paint wastes in the wash water with an amphoteric metal salt and...     

Alkaline paint stripper compositions contain either a fibrous material or a combination of a xanthan gum and hectorite clay so as to provide a peelable skin over a painted surface.

A method of removing organic coatings from scrap aluminum which includes passing a bed of the scrap metal supported on a gas-permeable conveyor through a pyrolysis zone and passing an oxygen-containing hot gas downwardly through the scrap metal bed, the conveyor advancing continuously through the pyrolysis...     

A chemical cleaning composition consisting essentially of water, a hydroxycarboxylic acid and a peroxymonosulfate compound is useful for cleaning processing tanks used in silver halide based photographic processing systems.

A composition containing ethanolamine, a silicate and a protective colloid is useful to restore broken, crazed, or alligatored finishes without removing the intact finish beneath.

A method is described for blast cleaning paint and other adhesive coatings from composite surfaces formed of a reinforced matrix material. A special soft media is used at a relatively low pressure to prevent damage to the soft composite material. The preferred method calls for the use of a media having...     

A method of conditioning sludge formed in paint spray booths, where the detackifier is a melamine-formaldehyde, polyvinyl alcohol and styrene-acrylate paint detackier by adding a water conditioner that includes acrylamide/dimethylaminoethylmethacrylate methylsulfate quat.