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| Number | Title | Issue Date |
| 7037379 | Anti-tarnish aqueous treatment 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 ... | 05/02/2006 |
| 6896739 | Anti-tarnish aqueous treatment 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 ... | 05/24/2005 |
| 6891056 | Branched primary alcohol compositions and derivatives thereof A detergent composition having cold water solubility and exhibiting high calcium tolerance can be produced from biodegradable branched ether derivative compositions derived from a branched ether primary alcohol represented by the formula: | 05/10/2005 |
| 6440917 | Cleaning metal salts of intermediate length carboxylic acids from surfaces Problems of extensive foaming and/or of sticky deposits on process equipment that often arise when metal soaps from metal articles that have been given a metal soap containing surface to aid in drawing are removed with aqueous alkaline clearners can be av... | 08/27/2002 |
| 6355605 | Composition and method for removing iron stain and scale A cleaning composition and method are provided for removing iron stains and scale from the external surfaces of duck decoys. An illustrative composition contains hydrochloric acid, stannous chloride, ammonium bifluoride, and water. The compositions are ap... | 03/12/2002 |
| 6194369 | Pickling/activation solution for the pretreatment of aluminum-steel composites prior to dip tinning The invention relates to an aqueous preparation for the pickling and activation of aluminum-steel composites prior to electroless dip tinning. Specifically, the invention provides pickling/activation solutions for the pretreatment of aluminum-steel compos... | 02/27/2001 |
| 6083896 | Aqueous cleaning solution and method for cleaning aluminum-based metals The present invention provides an aqueous cleaning solution for aluminum-based metals which comprises an inorganic acid in an amount to provide a pH value of 2 or less, an oxidized form metal ion and a surfactant represented by the following formula (I) R... | 07/04/2000 |
| 5932024 | Decoating titanium and other metallized glass surfaces Glass surfaces having titanium, stainless steel and/or other metals metallized thereon are denuded or reconditioned for a repeat of the initial metallization by contacting the initially metallized surface with an aqueous mixture of one or more strong mine... | 08/03/1999 |
| 5780404 | Detergent compositions containing enduring perfume A detergent composition containing efficient enduring perfume composition is provided. Specifically, the detergent composition comprises: an enduring perfume composition comprising at least about 70% of enduring perfume ingredients. The perfume is substan... | 07/14/1998 |
| 5695679 | Detergent compositions containing an organic silver coating agent to minimize silver training in ADW washing methods There is provided a bleaching composition containing (a) an oxygen-releasing bleaching agent as a source of available oxygen and (b) a non-paraffin oil organic silver coating agent. In one aspect the rate of release of available oxygen is carefully contro... | 12/09/1997 |
| 5688755 | Acidic cleaning aqueous solution for aluminum and aluminum alloy and method for cleaning the same An acidic cleaning aqueous solution for carrying out a low temperature acidic cleaning of aluminum and aluminum alloy and a cleaning method for the same free from harmful fluorine and chromium ions. The acidic cleaning aqueous solution includes oxidized m... | 11/18/1997 |
| 5575863 | Process for the chemical cleaning of metal components A process for chemical cleaning of metal components having an iron oxide deposit upon a layer of compounds having a high silica content. The process includes the step of preparing an aqueous mixture including an agent for complexing Si(OH)4 and... | 11/19/1996 |
| 5393447 | Composition and process for desmutting and deoxidizing without smutting A chromium and ferricyanide free aqueous deoxidizer/desmutter for aluminum and magnesium alloys contains nitric acid, ferric ions, persulfate, and molybdate and preferably also sulfate, fluoride, and ethoxylated acetylenic diol surfactant.... | 02/28/1995 |
| 5198141 | Process for cleaning a photographic process device Photographic processing devices such as stainless steel racks and tanks are cleaned to remove contaminants such as silver by contacting the devices with a cleaning solution comprising water, a mineral acid such as nitric acid, a soluble cerium (IV) salt s... | 03/30/1993 |
| 5100571 | Additive for engine cooling system The additive of the invention can be used as an additive to a liquid cooling system or as a metal cleaning compound. The additive removes rust and other oxidized materials from the cooling system without having to be flushed from the system. The additive ... | 03/31/1992 |
| 4778617 | Acid cleaner composition An acid cleaner composition to remove deposits capable of reacting with the acid and also forming thereby hydrogen sulfide, comprising from about 5 to 95% by weight of an acid having an ionization constant of at least about 1.75×10-5, and an e... | 10/18/1988 |
| 4678518 | Non-aqueous degreasing and chromating solution for metal treatment A non-aqueous chromating treatment solution comprising a chlorofluorocarbon solvent, chromic acid anhydride, an alcohol solubilizer, and an organic carboxylic acid reaction promotor gives a higher coating amount of chromate film and better corrosion resis... | 07/07/1987 |
| 4610798 | Method and composition of matter for conditioning and passivating certain metals A method for preparing and using a certain conditioning and passivation composition on metals and the composition of matter used for such conditioning and passivation, which method involves immersing the metal in a bath consisting of specified quantities ... | 09/09/1986 |
| 4530735 | Wet-process phosphoric acid brightening reagent for aluminum This invention teaches the development of a chemical reagent useful as an aluminum brightening bath. The reagent's composition is primarily wet-process phosphoric acid to which has been added small quantities of nitric acid, copper, and optionally traces ... | 07/23/1985 |
| 4496466 | Wet-process phosphoric acid brightening reagent for aluminum This invention teaches the development of a chemical reagent useful as an aluminum brightening bath. The reagent's composition is primarily wet-process phosphoric acid to which has been added small quantities of nitric acid, copper, and optionally traces ... | 01/29/1985 |
| 4460479 | Method for polishing, deburring and descaling stainless steel A metal polishing composition and method using same by suspending a metal article in a hydrochloric-nitric acid solution containing an ethoxylated carboxy-containing quaternary ammonium surfactant. Addition of the present surfactant greatly improves the e... | 07/17/1984 |
| 4400289 | Composition and process for pickling and removing rust from metal A pickling and rust-removing paste composition suitable for cleaning metal surfaces, including surfaces of steel and aluminum. The composition contains fluoride ions and a mixture of calcium compounds and tervalent iron and/or aluminum compounds and has a... | 08/23/1983 |
| 4339282 | Method and composition for removing aluminide coatings from nickel superalloys Nickel aluminide and like coatings are stripped from nickel base superalloy substrates using a 60°-71° C. solution consisting essentially by volume percent of 43-48 nitric acid, 7-12 hydrochloric acid, balance water, and containing 0.008-0.025 mole/lite... | 07/13/1982 |
| 4290819 | Method and composition for the removal of phenolic resin coatings from aluminum A composition and process for the removal of phenolic resin composites from aluminum and its alloys which results in a minimum of corrosion to said metals. The process uses a solvent solution of nitric acid, a hexavalent chromium and incidental water in t... | 09/22/1981 |
| 4270932 | Polishing of silver-plated articles The invention relates to the polishing of silver-plated, in particular electro-plated silver. The feature of the invention is the provision of a formulation which in the dry, solid state has a high storage life and is free of any toxic components and ther... | 06/02/1981 |
| 4162229 | Decontamination process Radioactive contaminants are removed from metal surfaces by treating the metal surfaces with an aqueous solution containing cerium (IV) salt.... | 07/24/1979 |
| 4108680 | Process for removing calcium oxalate scale A mixture of nitric acid and manganese dioxide is effective in removing calcium oxalate scale from metal surfaces.... | 08/22/1978 |
| 4032466 | Acid cleaner and process for disposal thereof A thickened acid cleaner concentrate composition comprising an inorganic acid, e.g., hydrochloric, an organic acid, e.g., oxalic, a nonionic surfactant, an anionic surfactant, a flocculating agent such as iron or aluminum ion and water is useful in cleani... | 06/28/1977 |
| 4014804 | Corrosion removal composition A composition comprising 2 to 10% by weight of a sulfate of copper, 0.05 to 1.0% by weight of an alkali metal bichromate, 0.05 to 1.0% by weight of a surfactant, 15 to 35% by weight of phosphoric acid (based on contained phosphoric acid) and 50 to 85% by ... | 03/29/1977 |
