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7337788 |
Compositions useful for cleaning solvent-based paint from paint delivery installations
Uncured solvent-based paint may be flushed from a paint delivery installation using a substantially non-aqueous composition containing one or more organic solvents and a polymer having acid and/or...
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7331354 |
Cleaning of tray columns which have been used for rectificatively treating liquids comprising (meth)acrylic acid and/or esters thereof
In process for cleaning tray columns which are used for the purposes of rectifiying liquids comprising (meth)acrylic compounds, a basic liquid is conveyed downward through the tray column and a gas...
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7293569 |
Alkylsilanes as solvents for low vapor pressure precursors
Compositions and methods for cleaning deposition systems utilizing alkylsilanes are described herein. In an embodiment, a method of cleaning a semiconductor fabrication system comprises flushing...
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7252720 |
Removal of prion infectivity
Prion infectivity adsorbed onto substrates (for example, chromatographic columns used to fractionate blood plasma) is removed by treatment with 2M sodium chloride. Optionally, the substrate is...
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7219675 |
Cleaning composition and method
A novel cleaning composition comprises a dilutant, a wetting agent, a chelating agent, an alkaline builder, and a chlorine provider. The dilutant is preferably water. The wetting agent is...
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7198052 |
Mobile flushing unit and process
In one embodiment of the invention, a method of cleaning a workpiece is disclosed. The method comprises providing a mobile flushing unit and servicing the workpiece as follows: a) connecting a...
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7115171 |
Method for removing engine deposits from turbine components and composition for use in same
A method and cleaning composition for removing engine deposits from turbine components, in particular turbine disks and turbine shafts. This method comprises the following steps: (a) providing a...
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7048803 |
Method of dissolving scale
A method of dissolving scale comprises contacting the scale with a solution of an alkali metal bisulfate. Another method of dissolving scale comprises contacting the scale with a solution of an...
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6986356 |
Beverage flow line cleaner with safety indicator and method of use
A method of cleaning potable liquid flow lines employing a high pH caustic cleaning solution or a low pH acid cleaning solution with a stable dye in sufficient concentration so as to have a visible...
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6982242 |
Aqueous detergent composition and method of use
An aqueous detergent composition is provided containing phosphoric acid or salt thereof, an organic phosphate surfactant, a nonionic surfactant, and water. The aqueous detergent composition may be...
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6926776 |
Method for cleaning pressurized containers containing chlorine gas or sulfur dioxide gas
The present invention relates to a method for cleaning a pressurized container having at least one chemical contained therein such as, for example, chlorine gas or sulfur dioxide gas. The...
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6905550 |
Method of removing organic materials using aqueous cleaning solutions
Removal of water-insoluble organic residues from inorganic surfaces can be accomplished in aqueous cleaning solutions containing an oxidant at a preselected temperature wherein the pH is adjusted...
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6902628 |
Method of cleaning a coated process chamber component
In a method of cleaning and refurbishing a process chamber component having a metal coating having a surface thereon, the surface of the metal coating is immersed in an acidic solution to remove at...
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6899767 |
Method of cleaning processing chamber of semiconductor processing apparatus
A method of cleaning the interior of a processing chamber first performs a halogenation treatment by supplying a treatment gas containing a halogenating gas into the processing chamber and heating...
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6863740 |
Cleaning method of ceramic member
Disclosed is a cleaning method of a ceramic member, which permits removing with a high accuracy the contaminants from a ceramic member contaminated with the contaminant. The cleaning method...
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6830629 |
Method for treating brass
Brass articles having leachable lead are contacted with an aqueous caustic solution that contains a chelating agent. A brass article can optionally be post-treated by contacting it with an aqueous...
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6772771 |
Decoke enhancers for transfer line exchangers
In a steam cracking operation the formation of coke is a problem which needs to be overcome. While significant work has been done on decoking of furnaces little work has been done regarding...
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6770150 |
Process for removing deposits from enclosed chambers
Alkaline and acid cleaning solutions ( 180, 182 ), are used sequentially for removing organic and inorganic residues, respectively, from the chamber. The two cleaning solutions are stored in...
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6761774 |
Composition and method for the in situ removal scale from a substrate
A composition and method for the removal of scale from a substrate are disclosed. The composition and method are more specifically utilized for the in situ removal of silicate-containing scale from...
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6743299 |
Method of cleaning infant feeding bottles
A method of cleaning articles, such as infant feeding bottles is disclosed. The method provides for the use of alkali metal chloride, more particularly sodium chloride. The salt is deposited into...
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6739380 |
Method and apparatus for removing ceramic material from cast components
The removal of ceramic material from the interior of cast metallic components is accomplished in a closed system. A vessel within the system is filled with a chemical leaching fluid that immerses...
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6722377 |
Process for cleaning reactors
This invention relates to a process for cleaning reactors. The process utilizes a solvent fed from multiple pressure sources to clean reactors of residual polymers. The reactors are equipped with...
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6712079 |
Process of cleaning the inner surface of a water-containing vessel
The present invention relates to a process of cleaning the inner surfaces of a liquid-containing vessel with an automatic cleaning device, wherein said process is performed by said device and...
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6695928 |
Method for production of (meth) acrylic acid and/or (meth)acrylic esters
A method for the production of (meth)acrylic acid and/or a (meth)acrylic ester is provided. This method for the production of (meth)acrylic acid and/or a (meth)acrylic ester includes washing the...
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6695927 |
Method and cleaning solution for cleaning a container
A method and a solution are provided for cleaning a container, in particular a boiler of a conventional power station. The container is degreased and pickled in one method step using an alkaline...
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6679274 |
Clean-in-place method for cleaning solution delivery systemes/lines
A method is taught for cleaning photographic chemistry product fouling, including a proteinaceous portion and a non-proteinaceous portion from a liquid delivery system. The method comprises the...
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6676769 |
Apparatus and method for cleaning a furnace torch
An apparatus and a method for cleaning a torch for a vertical furnace used in semiconductor processing are disclosed. The apparatus is constructed by two main components of a basket-shaped fixture...
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6663720 |
Method of prevent an etcher from being eroded
A method of prevention maintenance preventing parts of an etcher from being eroded is disclosed. First, a layer of hydrogen-free chemical compound is formed on surface of the parts of the etcher...
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6655394 |
Method and apparatus for reprocessing dialyzers
This invention provides a method for reprocessing a dialyzer for hemodialysis, the method comprising the steps of rinsing the dialyzer with water and cleaning it with electrolyzed strongly acidic...
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6652664 |
Oil pump screen cleaning method and apparatus
An oil-pump-screen ( 1 ) cleaning method and apparatus with which an oil pan ( 3 ) of an internal-combustion engine ( 2 ) is drained by removal of a drain plug ( 7 ) from a drain aperture ( 15 );...
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6638902 |
Stable solid enzyme compositions and methods employing them
The present invention relates to a solid enzyme cleaning composition in which the enzyme is stable in the presence of mixtures of carbonate and bicarbonate at alkaline pH, and methods employing...
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6630105 |
Method and apparatus for the gas phase decontamination of chemical and biological agents
An apparatus and method for decontaminating chemical and biological agents using the reactive properties of both the single atomic oxygen and the hydroxyl radical for the decontamination of...
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6585830 |
Method for cleaning tungsten from deposition wall chambers
An unwanted tungsten film deposit on a Chemical Vapor Deposition chamber is cleaned by adding a mixture of at least two cleaning gases into the chamber at a predetermined temperature and pressure...
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6581613 |
Alkylpolyglucoside with a high degree of oligomerization
The present invention provides a defined alkylpolyglucoside having a degree of oligomerization of at least 1.7 to 3 and an alkyl radical comprising 8 carbon atoms, and mixtures of this...
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6569253 |
Method of cleaning a chamber of a CVD machine and elements within
The present invention provides a method of cleaning a chamber of a CVD machine and elements within. A gas mixture of carbon tetrafluoride (CF 4 ) and perfluoro ethane (C 2 F 6 ) is first injected...
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6554912 |
Polymer remover
Compositions for the removal of polymeric material from a substrate are provided where the compositions include a polyol compound selected from (C 3 -C 20 )alkanediols, substituted (C 3 —C 20...
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6550487 |
Apparatus for removing deposits from enclosed chambers
A cleaning unit (A) includes a movable cart ( 20 ) which carries a cleaning system for cleaning baked-on residues from walls ( 10 ) of a sterilizer chamber ( 12 ). The cleaning system includes a...
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6544346 |
Method for repairing a thermal barrier coating
A method of repairing a thermal barrier coating on a component designed for use in a hostile thermal environment, such as turbine, combustor and augmentor components of a gas turbine engine. The...
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6524397 |
Method for removing an acidic deposit
A method for removing an acidic deposit containing a sulfur compound, which comprises contacting the acidic deposit with an aqueous solution of an alkali metal carbonate and/or an alkali metal...
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6524392 |
Use of water-soluble polymeric polycarboxylates in cleaner formulations with abrasive action
Cleaning compositions which, as powder or as aqueous formulation based on sodium bicarbonate, sodium chloride and/or sugar, comprise a water-soluble polymeric polycarboxylate as dispersant with the...
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6514352 |
Cleaning method using an oxidizing agent, chelating agent and fluorine compound
The cleaning method described above is characterized by allowing a cleaning agent comprising an oxidizing agent, a chelating agent and fluorine compound to flow on a surface of a material to be...
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6475289 |
Cleaning of internal passages of airfoils
A chemical cleaning method for cleaning an internal passage of an engine-run gas turbine engine airfoil wherein the airfoil is immersed in an inorganic hydroxide medium at superambient temperature...
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6428628 |
Paint-removing method, paint-removing device, and ship removed of paint
A paint-removing method comprises the steps of putting dimethyl sulfoxide into a tank, raising the dimethyl sulfoxide at a temperature of approximately 35° C. to 189° C. in the tank; and soaking...
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6398876 |
Process for pickling steel
Stainless steel is pickled by a chemical and/or electrochemical pickling process using an acid liquid, containing substantially no nitric acid. The process uses a spent electrolyte solution from an...
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6397862 |
Method of cleaning garbage disposals
A method for cleaning garbage disposals comprises the steps of: mixing the starting materials in order to form an effervescent tablet; packaging the tablet in a moisture resistant pouch; placing...
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6368419 |
Non-destructive oil recovery method
In the non-destructive recovery of oil or other petroleum hydrocarbon from a contaminated substrate, the hydrocarbon is separated intact from the substrate by applying a hydrocarbon removing agent...
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6357453 |
System and method for cleaning cathode ray tube funnels prior to application of interior coating
An improved chemical wash is used to cleanse the interior of an open Cathode Ray Tube (“CRT”) funnel before a coating of a carbon material is applied. The traditional ammonium bifloride wash...
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6344090 |
Metal loss inhibitors and processes therewith
An inhibitor especially useful for aqueous solutions being used at high temperatures to remove scale from boiler tubes and the like contains (1) amines including a substituent group with an abietyl...
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6340395 |
Salsa clean process
A wet spray cleaning process for removing thick organic layers including hardened photoresist from the surface of silicon wafers yields low residual particle counts for photoresist thicknesses up...
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6306223 |
Degreasing method using a surfactant-free composition
The present invention relates to a process for removing fatty substances. According to this process, the following steps are carried out:1) at least a first degreasing operation is carried out on...
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