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5639311 |
Method of cleaning brushes used in post CMP semiconductor wafer cleaning operations
A method of cleaning brushes used in post chemical-mechanical polishing of semiconductor wafers employs water blanks treated with a hydrofluoric acid to render the surface hydrophobic. When an...
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5633175 |
Process for stripping photoresist while producing liquid crystal display device
A liquid crystal display device is produced by effecting in the course of its production steps a resist-peeling method including the steps of (a) changing the quality of a resist layer on a...
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5632856 |
Method for removing toner from copy paper
A method of removing plastic ink film from a sheet of copy paper by preheating the paper sheet in a preheating chamber to loosen the plastic ink film from the paper sheet followed by contacting the...
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5631303 |
Process for removing plastics from microstructures
A process for removing plastics from microstructures is disclosed. The metallic microstructure is treated with a high-boiling fluid at a temperature above 140° C. for 10 to 90 minutes and...
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5629277 |
Paint removing composition
A composition for removing paint, particularly graffiti, is described which contains an alkylene carbonate, which may be propylene carbonate, butylene carbonate or mixtures thereof; propylene...
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5628833 |
Two-step cleaning or dewatering with siloxane azeotropes
A process for cleaning or dewatering a surface in which there is applied to the surface a washing composition containing a volatile methyl siloxane such as hexamethyldisiloxane or...
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5617800 |
System for cleaning fixtures utilized in spray painting
A method for cleaning a fixture utilized in an electrostatic spray painting process to remove adhered paint particles from the fixture utilizing inductive heating to heat the paint particles to a...
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5618781 |
Azeotrope-like compositions of dichloropentafluoropropane and methylpentane
Stable azeotrope-like compositions consisting essentially of dichloropentafluoropropane and a hydrocarbon containing six carbon atoms which are useful in a variety of industrial cleaning...
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5616183 |
Method of cleaning tubes or conduits
A method for cleaning tubes or vessels utilizes a composition which contains a ceramic particulate spherical or conical in shape in an amount of 1-20 wt % of the total composition, and a liquid...
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5614032 |
Terpene-based method for removing flux residues from electronic devices
In a method for cleaning using terpene compositions, the generation of harmful precipitates is substantially eliminated or significantly reduced by adding a polar solvent, such as isopropyl...
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5613984 |
Process for laundering paint soiled garments
A process for laundering garments soiled with a one component paint, a two component paint, a waterborne paint, a powder coat paint or a mixture thereof comprising the steps of exposing the soiled...
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5609693 |
Methods for removing acrylic-based polymer coatings
Methods useful for removing an acrylic-based polymeric material located on a surface, for example, a surface of a piece of process equipment. The method includes contacting an acrylic-based...
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5607512 |
Electrical contact cleaner and method
A method for maximizing electrical contact between contact surfaces, consisting essentially of a volatile cleaning agent and an oxidation occluding agent. The method uses an applicator device for...
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5604193 |
Adhesive and enamel remover, and method of use with d-limonene, dibasic ester, an N-methyl pyrrolidone
A composition useful for removing adhesives and enamels from surfaces consists of d-limonene, dibasic acid ester, and N-methyl pyrrolidone.
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5604196 |
Nonflammable mild odor solvent cleaner with (m)ethyl lactate and propylene glycol propyl ether
Disclosed are three organic solvent cleaning formulations. In one embodiment, the formulation is methyl or ethyl lactate and propylene glycol methyl ether. In another embodiment, the formulation is...
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5597788 |
Paint stripping compositions and methods
The present invention relates to light and heat reactive paint or polymer stripping compositions preferably employing biodegradable components such as conjugated terpenes and related polyenes in...
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5597420 |
Stripping composition having monoethanolamine
The invention teaches an aqueous stripping composition that is essentially free of any hydroxylamine compounds. The composition consists essentially of an aqueous mixture of monoethanolamine and...
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5588901 |
Cleaning method and apparatus utilizing sodium bicarbonate particles
A method and apparatus for effecting the continuous reliable supply of sodium bicarbonate particles to a blasting nozzle employing pressured air or water for conveying such particles into contact...
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5590238 |
Horizontally and vertically movable radiant heater for removing paint from a surface
A device for removing layers of paint from a surface including layers of paint which may comprise a base layer of oil paint. The paint is softened by radiation by means of at least one heating...
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5582650 |
Process for cleaning parts soiled or encrusted with polyester resin
A process using primarily aqueous-based surfactants for cleaning machinery, tools, containers and the like to remove polyester resin residue. This process involves four stages, each having one or...
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5580906 |
Ternary azeotropic compositions
Azeotropic or azeotrope-like compositions of effective amounts of 1,1,1,2,3,4,4,5,5,5-decafluoropentane, heptane and an alcohol such as methanol, ethanol, n-propanol or isopropanol, to form an...
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5578135 |
Chemo-mechanical stripping of paint from plastic parts
A process for stripping of used parts or reject parts, in particular of polycarbonate (PC) or of a polycarbonate blend, preferably with polybutylene terephthalate (PBT/PC), for the purpose of...
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5578137 |
Azeotropic or azeotrope-like compositions including 1,1,1,2,3,4,4,5,5,5-decafluoropentane
Compositions of 1,1,1,2,3,4,4,5,5,5-decafluoropentane, bis(fluoromethyl) ether, 2,2,4,4-tetrafluorooxetane, 2,2,3,3-tetrafluorooxetane, 1,1,1,2-tetrafluoro-2-(fluoromethoxy)ethane,...
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5575859 |
Method for removing printing and screen printing ink
A liquid for removing printing and screen printing inks consists of an essentially anhydrous mixture of (a) γ-butyrolactone and/or N-methyl-2-pyrrolidone in an amount of up to 25% (v/v) and/or (b)...
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5571337 |
Method for cleaning and drying a semiconductor wafer
A method for drying articles with flat surfaces such as a semiconductor wafer. The method includes steps of immersing a semiconductor wafer in a liquid such as water, and displacing the liquid with...
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5571335 |
Method for removal of surface coatings
A method for removing a surface coating by impinging an area of impingement of the surface coating with photon energy while simultaneously impinging the area of impingement with a cryogenic...
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5567574 |
Removing agent composition for photoresist and method of removing
A removing agent composition for a photoresist is disclosed which comprises 5 to 50% by weight of an alkanolamine, an alkoxyalkylamine or an alkoxyalkanolamine, 1 to 30% by weight of a glycol...
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5563119 |
Stripping compositions containing alkanolamine compounds
The invention teaches an aqueous stripping composition that is essentially free of any hydroxylamine compounds. The composition is an aqueous mixture of an alkanolamine, tetraalkylammonium...
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5562833 |
Dual feed paint detackification program
In a paint spray booth wherein water is used to collect oversprayed paint, a process is disclosed for detackifying and coagulating oversprayed paint by the independent and concurrent addition of...
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5560781 |
Process for non-contact removal of organic coatings from the surface of paintings
The present invention discloses a method of removing organic protective coatings from a painting. In the present invention degraded protective coatings such as lacquers, acrylics, natural resins,...
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5560934 |
Cleavable diepoxide for removable epoxy compositions
A cleavable epoxy resin composition suitable for encapsulating electronic chips comprising the cured reaction product of a diepoxide containing a cyclic anhydride curing agent and an amine promoter.
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5560860 |
Water-based paint spray booth flood sheets and methods of reclaiming paint using the same
A composition for reclaiming paint and volatile organic paint carrier from industrial paint spray booths without increasing VOCs has been developed. The improvement over the existing booths...
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5561105 |
Chelating reagent containing photoresist stripper composition
A non-corrosive photoresist composition containing: (a) 20-70% by weight of an organic polar solvent having a dipole moment of more than 3.5; (b) 70-20% by weight of selected amine compounds;...
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5556482 |
Method of stripping photoresist with composition containing inhibitor
Organic stripping composition for photoresists comprising organic polar solvents and basic amines which includes an inhibitor which forms a coordination complex with a metal.
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5547587 |
Process for denaturing and coagulating paints
The invention is an improved process for denaturing and coagulating paint in an aqueous medium in which denatured and coagulated paint must remain in a dispersion in the aqueous medium. The aqueous...
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5542985 |
Method of recycling a waste recording member
A method for cleaning waste paper by removing toner-images formed thereon. An emulsion formed cleaning solution, which has a water component, an organic solvent dissolving a resin component, and a...
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5542986 |
Paint strippers process
Aqueous paint stripper formulations containing a solvent system comprised of an ester such as benzyl formate and methods for using the same to strip paint.
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5542982 |
Method of removing coating films
Improved methods of removing coating films from resin substrates includes first treating the resin substrates in an aqueous alkali solution with a concentration of 0.1 wt % or more at a temperature...
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5536439 |
Non-abrasive line cleaning composition
A cleaning composition for removing paint deposits includes, by weight, 20-80% of a solution of 2-30% of an alkali metal hydroxide dissolved in a glycol ether together with 80-20% of an organic...
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5529887 |
Water soluble fluoride-containing solution for removing cured photoresist and solder resist mask
A coating-removing solution for photo-cross-linked and thermally cross-linked photoresist masks and solder resist masks cross-linked by exposure to light and heat and which solution contains a...
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5522938 |
Particle removal in supercritical liquids using single frequency acoustic waves
A method and apparatus for particle removal in supercritical fluids using a single frequency acoustic wave. A wafer (114) is placed in a process chamber (110) and cleaning gas is introduced through...
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5522939 |
Method of removing plastic material from optical fiber cable
A method of removing a cured plastic matrix material from a fiber optic ribbon includes applying thereto a composition of matter comprising a solvent and a filler. The filler is selected from the...
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5516450 |
Azeotropes of octamethyltrisiloxane and N-propoxypropanol
New binary azeotropes of octamethyltrisiloxane (MDM) with n-propoxypropanol, and the use of the binary azeotropes as environmentally friendly cleaning agents are disclosed. New azeotrope-like...
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5512105 |
Method of removing dried paint from a surface
A window scraper and method are provided wherein a scraping brush has filaments and wherein the tips of the filaments are moved linearly across the work surface as the brush rotates. Preferably,...
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5509969 |
Abatement process for contaminants
A process for cleaning a surface contaminated with an organic, acidic or basic contaminant. In the process, a liquid-state composition including an agent selected form the group consisting of an...
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5509971 |
Process for removing coatings from hard surfaces
A process for removing coatings from hard surfaces includes blasting the surfaces with a free-flowing particulate blast media entrained in a pressurized fluid, the blast media containing a major...
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5507978 |
Novolak containing photoresist stripper composition
A noncorrosive photoresist composition containing: (a) 20-70% by weight of an organic polar solvent having a dipole moment of more than 3.5; (b) 70-20% by weight of selected amine compounds; ...
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5507878 |
Azeotropes of octamethyltrisiloxane and aliphatic or alicyclic alcohols
Binary azeotropic and azeotrope-like compositions contain 1-heptanol, cyclohexanol, or 4-methylcyclohexanol, with octamethyltrisiloxane, and the compositions are useful for cleaning, rinsing, or...
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5505749 |
Abrasive coating remover
A blast media for removing coatings from hard surfaces such as steel includes a major amount of a granular relatively soft abrasive having a Mohs hardness of less than 4 and a minor portion of a...
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5501761 |
Method for stripping conformal coatings from circuit boards
In preparation for removing a protective adherent covercoat from a circuit board that is to be repaired, the surface integrity of the coating is altered (for example, by making incisions therein)....
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