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WO/1999/046425A1 |
Invention pertains to agents for chemical treatment of metal and metal-containing surfaces for the purpose of removing rust and corrosion products, and it may be used in various branches for preparation of surfaces prior to painting, pri...
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WO/1999/046427A1 |
A pickling device, wherein a pickling tank main body (11) is divided into first and second tanks (13 and 14) through a partition (12), the first and second tanks (13 and 14) are filled with acid liquids L1 and L2 of different concentrati...
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WO/1999/046426A1 |
A pickling device, wherein a pickling tank (11) is filled with acid liquid (L) and a cover (12) is attached thereto, a covering part (12b) formed by recessing downward the center portion of the cover (12) is positioned at a level lower t...
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WO/1999/046428A1 |
The invention concerns a method for treating a metal part (12) surface for deoxidising and/or degreasing it which consists in: filling a sealed chamber wherein is set the part to be treated, with a low pressure reducing gas; generating a...
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WO/1999/046353A1 |
A cleaning solution, method, and apparatus for cleaning semiconductor substrates after chemical mechanical polishing of copper films is described. The present invention includes a cleaning solution which combines deionized water, an orga...
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WO/1999/043070A1 |
The invention concerns a method for purifying the cooling circuit of an alternator stator, characterised in that part of the water of the closed cooling circuit is derived upstream of the alternator towards the deionization circuit suppl...
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WO/1999/041428A1 |
The invention provides azeotrope-like compositions consisting essentially of R¿f?OCH¿3? where R¿f? is a branched or straight chain perfluoroalkyl group having 4 carbon atoms, 1-bromopropane and an alcohol and cleaning and coating comp...
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WO/1999/038947A1 |
An azeotropic nonflammable liquid composition which has cleaning properties, which is substantially free of a chlorinated hydrocarbon solvent, and which has an ozone depletion factor of no greater than about 0.15 and which comprises the ...
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WO/1999/039045A1 |
The invention relates to aqueous compositions, comprising calcium ions and metal ions selected from the group comprising Cu, Fe, Zn, Ni and Co, and a specific complexing agent and applications for these aqueous compositions.
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WO/1999/036486A1 |
The present invention relates to compositions of 1,1,1,3,3-pentafluoropropane and a hydrocarbon such as cyclohexane, 2,2-dimethylbutane, 2,3-dimethylbutane, 2,3-dimethylpentane, 3-ethylpentane, heptane, methylcyclopentane, 2-methylpentan...
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WO/1999/036157A1 |
The present invention relates to a system for preventing the emanation of entrained substances such as: vapors, smoke, odors, or dusts, from open spaces. In particular, the invention relates to a system for collecting and recovering orga...
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WO/1999/035321A1 |
A cleaning system (10) and method utilizing sonic whistle agitation to enhance the soil removal and mass transport capacity of the liquid carbon dioxide (20) at low process temperatures. Sonic whistles (61) are within a cleaning chamber ...
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WO/1999/035210A1 |
Compositions of 1,1,1,2,3,4,4,5,5,5-decafluoropentane and n-propyl bromide, or 1,1,1,2,3,4,4,5,5,5-decafluoropentane, n-propyl bromide an alcohol such as methanol, ethanol, and isopropanol, are described. These compositions are useful as...
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WO/1999/035505A2 |
A method for removing deposits from a probing feature (72) of a probe card (70), the method includes the step of exposing the probing feature of a probe card to a composition (76) that chemically reacts with the deposits on the probing f...
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WO/1999/034940A1 |
An aqueous stripping composition comprising a mixture of an organic amine and a corrosion inhibitor which is benzotriazole alone or in combination with gallic acid, its ester or analog. The stripping composition is effective to strip pho...
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WO/1999/035209A1 |
The invention relates to novel compositions of 1,1,1,3,3-pentafluoropropane and chlorinated ethylenes and more particularly to azeotrope-like compositions based on these compounds which are useful as solvents in aerosol, refrigeration fl...
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WO/1999/032690A1 |
A process for pickling a scale covered solid surface of a metallic article includes contacting the substrate with a first liquid to loosen the scale but not completely remove it, followed by electrolysis in which the substrate with the l...
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WO/1999/031031A1 |
A stabilizer composition comprising a) an N-alkyl morpholine and b) a straight-chain or cyclic aliphatic amine containing no heteroatoms other than N with a boiling point of at least 150 °C. The stabilizer composition is useful for stab...
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WO1999021220A9 |
A cleaning solution, method, and apparatus for cleaning semiconductor substrates after chemical mechanical polishing of copper films is described. The present invention includes a cleaning solution which combines deionized water, an orga...
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WO/1999/031296A1 |
The invention relates to a method for pickling and/or passivating special steel. The steel is brought into contact with an aqueous treatment solution with a pH value that is below or equal to 2.5 at a temperature of 30-70 °C. Said solut...
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WO/1999/031214A1 |
The invention concerns azeotropic and pseudo-azeotropic compositions formed by perfluorobutyl methyl ether with esters capable of being used in particular as solvent for cleaning and removing flux from electronic components, degreasing m...
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WO/1999/030355A1 |
The present invention is directed to wet processing methods for the manufacture of electronic component precursors, such as semiconductor wafers used in integrated circuits.
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WO/1999/029928A2 |
The following description sets forth a process for steel band spray pickling and an apparatus suitable for carrying out said pickling process, wherein the steel band (7) to be pickled slides between two sets of pipes (6, 8) (each bearing...
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WO/1999/028520A2 |
One disadvantage of known plasma processing devices is that the current density and etching rate cannot be increased as desired if productivity is to be improved. Said devices are also operated at a high gas pressure. Devices operating a...
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WO/1999/027162A1 |
Method for pickling products made of steel, characterised in that within the pickling bath Fe?3+¿ is present, directly added in a controlled concentration, or produced in the pickling bath itself by adding an oxidising agent such as hyd...
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WO/1999/025798A1 |
Cleaning and deoxidizing aluminum surfaces can be accomplished simultaneously by contacting the surfaces with an aqueous liquid composition that contains as its cleaning active ingredients (i) alcohols and/or ether alcohols, (ii) alkalin...
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WO/1999/024642A1 |
The present invention relates to a method for separating layers from articles made of high-speed steel and comprising at least one layer of TiN, TiCN and TiAlN. This method comprises applying an alkaline solution containing hydrogen pero...
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WO1999014165B1 |
The object of the invention is a method comprising one or several steps for treating acid solutions containing metal arising from a surface treatment process. The inventive method consists of a) separation of free acid from said solution...
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WO/1999/024643A1 |
An apparatus for continuously measuring the acid concentration, comprising a combination of a main body having a flow passage for permitting a pickling liquid contained in a pickling bath to continuously flow in one direction, a densitom...
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WO/1999/023193A2 |
Aqueous alkaline cleaning solutions that are used to clean metal soap lubricants off the surfaces of water-resistant articles often develop a strong proneness to foaming which can make large scale cleaning operations impractical. Attempt...
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WO/1999/023283A1 |
The present invention discloses a composition and method for removing metal oxide deposits, in particular rust from a metal surface by coating the surface with an aqueous solution of a polyvinyl alcohol, allowing the solution to dry to f...
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WO/1999/022878A2 |
The invention relates to a method for corrosion-resistant coating of metal substrates by means of plasma polymerisation, wherein the substrate is subjected to mechanical, chemical and/or electrochemical smoothing in a pre-treatment step ...
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WO/1999/020408A1 |
An aqueous stripping composition comprising a mixture of a polar amine, an organic or inorganic amine and a corrosion inhibitor which is gallic acid, its ester or analog. The stripping composition is effective to strip photoresists, resi...
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WO/1999/019541A1 |
The invention concerns a basket-like container (1A) for treating in a dishwasher silverware or silver-plated objects (104, 105) to strip them, and related means. The container enables a controlled temporary stagnation of a liquid around ...
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WO/1999/016933A1 |
The invention relates to a method and device for etching a metal strip (2), especially a rolling strip, by means of an etching facility (1) through which the metal strip (2) passes and in which the metal strip (2) is etched by means of a...
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WO/1999/002642A1 |
This invention provides a stabilized alkyl bromide based solvent system that is useful for cleaning and degreasing a wide variety of metal objects. The solvent is stabilized with a stabilizer system that includes a dialkyl carbonate such...
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WO/1999/002616A1 |
This invention provides a solvent composition comprising 1-bromopropane and a decafluoropentane for use as a cleaning and degreasing solvent. Preferably the decafluoropentane consists essentially of 1,1,1,2,3,4,4,5,5,5-decafluoropentane....
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WO/1999/002615A1 |
A cleaning and degreasing solvent comprising 1-bromopropane and a dichloropentafluoropropane. Preferably the dichloropentafluoropropane consists essentially of a mixture of 3,3-dichloro-1,1, pentafluoropropane and 1,3-dichloro-1,1,2,2,3-...
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WO/1998/058632A1 |
Biofilm/debris is removed from interior and exterior surfaces of small bore tubing by passing an aqueous cleaning solution of water, one or more surfactants and preferably a hydrogen peroxide source, optionally including small inert soli...
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WO/1998/051769A1 |
A process for removing tarnish from tarnished silverware comprising contacting the tarnish silverware with an anti-tarnish composition in an automatic dishwasher. The anti-tarnish composition comprises an alkaline electrolyte and a metal...
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WO/1998/050600A1 |
Methods and apparatus (104) for generating uniform ion bombardment and plasma cleaning over the entire surface of an object or collection (116) of closely spaced objects having a high aspect ratio by use of a low pressure plasma. The par...
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WO/1998/050516A1 |
The present invention is directed to a non-corrosive photoresist stripping and cleaning composition, comprising: (a) about 5 % to about 50 % solvent selected from the group consisting of N-methyl-2-pyrrolidinone, N-hydroxyethyl-2-pyrroli...
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WO/1998/049368A1 |
The invention relates to a method for cleaning or activating electrically conductive structured layers. According to the invention, a dielectrically impeded discharge is used for this purpose.
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WO/1998/048080A1 |
Method of taking off iron oxides and hydroxides from steel product surfaces, comprising the steps of treating the surfaces by the mixture of mono (alkyl, dioxyalkyl) ethers of carboxylic acids and monoalkyl ethers of sulphuric acid, in w...
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WO/1998/045059A1 |
The invention relates to a device and method for cleaning and drying work pieces in a treatment vessel (1) in which it is possible to produce a negative pressure. During the cleaning process, a liquid bath (50) is formed in the treatment...
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WO/1998/045399A1 |
An ethylenediaminetetraacetic acid or a mono- di- tri- or tetraammonium salt 5 thereof residue cleaning composition removes photoresist and other residue from integrated circuit substrates. The balance of the composition is desirably mad...
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WO/1998/044083A1 |
The invention provides a solvent mixture comprising n-propyl bromide, a mixture of low boiling solvents and, preferably, a defluxing and/or ionics removing additive and/or at least one saturated terpene. The invention also provides a met...
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WO/1998/044168A1 |
A hot rolled steel strip having no dechrominized layer on the surface thereof, exhibiting a high corrosion resistance even when used after rolled and pickled, and having no shot seam, and its production method are disclosed. A steel mate...
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WO/1998/044167A1 |
A cleaning composition having a pH of about 4 to about 9 and consisting essentially of the following ingredients present in proportions effective to clean from a metallic surface contacted therewith metal oxide and other soil adhered to ...
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WO/1998/041606A1 |
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 nucleus, (2) organic compounds or polym...
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