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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7799485 | Fuel cell system and composition for electrode According to the invention, a fuel cell system features a fuel cell (1) having an electrode (5, 6), and an antioxidant residing in or contacting the electrode (5, 6), for inactivating active oxygen. ... | 09/21/2010 |
| 7125497 | Reactive formulations for a neutralization of toxic industrial chemicals Decontamination formulations for neutralization of toxic industrial chemicals, and methods of making and using same. The formulations are effective for neutralizing malathion, hydrogen cyanide, sodium cyanide, butyl isocyanate, carbon disulfide, phosgene gas, capsai... | 10/24/2006 |
| 7052683 | Composition to detoxify formaldehyde in gaseous state, in aqueous solutions, and to protect human cell lines against formaldehyde A chemical compound is disclosed herein for performing a complex enzymatic neutralization and fixation of formaldehyde, providing a method for instantaneous neutralization of formaldehyde vapors and offering a complete and rapid control of incidental releases, and a... | 05/30/2006 |
| 6953535 | Initiator system for acid dental formulations The invention relates to a redox initiator system which allows dental formulations to be cured in acidic medium by way of a free-radical polymerization and which ensures a high level of adhesion of the polymerizing composition to the hard substances of the teeth, na... | 10/11/2005 |
| 6605234 | Polysulfide solutions and hydroxalkylaminium ions for stabilizing elemental sulfur Hydroxalkylaminium polysulfides are used to provide cold stability to ammonium polysulfide solutions. Hydroxyalkylaminium sulfides or polysulfides also are used to solubilize unwanted sulfur. Preferred aminium ions are monohydroxyalkylaminium ions, prefer... | 08/12/2003 |
| 6383254 | Treatment solution and treatment method for reducing copper oxides There are provided a treatment solution for reducing a copper oxide formed on the surface of copper to copper, wherein dimethylamine borane is contained in an amount of 0.3 to 2.0 g/L and the relationship yࣙ0.232x-0.185 holds between the conc... | 05/07/2002 |
| 6322656 | Method and composition for amine borane reduction of copper oxide to metallic copper An improvement in a method of bonding copper and a resin together wherein a copper oxide layer is formed on the surface of copper by the oxidation of metallic copper, the copper oxide layer is reduced to metallic copper with an aqueous reducing solution c... | 11/27/2001 |
| 6319288 | Formamidinesulfinic-acid compositions A blend is disclosed containing formamidinesulfinic acid, an scale-inhibiting agent that can be neutral or acidic, and/or finely divided silica having good flowability to be used for the purpose of reductive bleaching in the paper and textile industries, ... | 11/20/2001 |
| 6217933 | Method for treating dentures The invention relates to a method for treating a denture, comprising passing the denture through the air interface of an aqueous composition comprising a polymeric coating agent, especially a silicone polymer, having a weight average molecular weight of 1... | 04/17/2001 |
| 6207073 | Remediation of environmental contaminants using a metal and a sulfur-containing compound A method and composition for the remediation of environmental contaminants in soil, sediment, aquifer material, water, or containers in which contaminants were contained, wherein contaminants are reacted with a remediating composition comprising a metal a... | 03/27/2001 |
| 6171347 | Compositions, methods and kits for reductively removing color from dyed hair A multicomponent kit for coloring and later removing color from fibers is described, which consists of a first component and a second component. The first component includes a composition for oxidative dyeing of hair and the second component includes an a... | 01/09/2001 |
| 6166262 | Surfactant manufacture Branched-chain olefins are prepared and used as feedstocks in the manufacture of detersive surfactants.... | 12/26/2000 |
| 6106579 | Compositions and methods for dyeing and safe decolorizing of fibers, especially hair, and multi-part kit for repeatedly changing dyed fiber color The method for decolorizing fibers includes applying a decolorizing composition according to the invention to dyed fibers and allowing the composition to act on the fibers for a sufficient time to remove dyed color from the dyed fibers. The decolorizing c... | 08/22/2000 |
| 5720823 | 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, and molybdate and/or condensed molybdate anions and preferably also sulfate and fluoride.... | 02/24/1998 |
| 5549715 | Method for bleaching textile material A method for bleaching textile material, including preparing an aqueous alkaline solution of a bleaching agent composed of formamidine sulfinic acid and at least one carbohydrate having a general total formula Cn H2n On, t... | 08/27/1996 |
| 5508195 | Method for liming hides and skins A method for liming hides and skins using a proteolytic enzyme in an aqueous-alkaline float is taught, wherein the liming float has a pH value from 10-14 and contains both thiourea dioxide and an alkaline protease having elastase activity.... | 04/16/1996 |
| 5466381 | Method of scavenging oxygen from an aqueous medium An improved oxygen scavenger for aqueous mediums is disclosed which is a disubstituted, water soluble azo compound.... | 11/14/1995 |
| 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 |
| 5376749 | Stabilized ammonium polysulfide solutions and process utilizing same A stabilized ammonium polysulfide solution comprising an aqueous solution of ammonium polysulfide and a stabilizing amount of a water soluble, stabilizing compound that can be an azacyclic compound, a compound having the formula R--O--(Cn H | 12/27/1994 |
| 5208014 | Reducing cosmetic composition for perming the hair, containing cysteamine and/or its N-acetyl derivative and a cationic polymer, and a process for permanent deformation of the hair A reducing cosmetic composition containing an association of a reducing agent and a cationic polymer is described. The reducing agent is cysteamine or one of its salts and/or N-acetylcysteamine, and the cationic polymer is a copolymer of from 45 to 99.5 m... | 05/04/1993 |
| 5139920 | Reducer and method for conducting dot etching processing of silver image A reducer and a method for conducting dot etching processing using the reducer, the reducer comprising (1) an amino polycarboxylic acid ferric chelate compound having an oxidation-reduction potential of -100 mV or above, (2) a complexing agent, and (3) at... | 08/18/1992 |
| 5094833 | High yield sodium hydrosulfite generation An improved high yield process and apparatus for producing sodium hydrosulfite by reacting sodium borohydride, sulfur dioxide, sodium hydroxide, and sodium bisulfite is provided. The improved result of the invention is obtained by a feed system that requi... | 03/10/1992 |
| 5078894 | Formulations for iron oxides dissolution A mixture of a di- or polyphosphonic acid and a reductant wherein each is present in a sufficient amount to provide a synergistic effect with respect to the dissolution of metal oxides and optionally containing corrosion inhibitors and pH adjusting agents... | 01/07/1992 |
| 5041232 | Sulfonimines as bleach catalysts Novel bleach catalysts, a method for bleaching substrates using these catalysts and detergent compositions containing the catalysts are reported. The catalysts are sulfonimines. Substrates such as fabrics may be bleached in an aqueous solution containing ... | 08/20/1991 |
| 5041237 | Aqueous solution containing sulphur dioxide and sodium in high percentages, its manufacture and use An aqueous solution containing sulphur dioxide and sodium in high percentages is obtained by bringing sulphur dioxide into contact with a recirculating aqueous solution of sodium hydroxide and previously absorbed sulphur dioxide to obtain a ratio between ... | 08/20/1991 |
| 4871373 | Continuous preparation of solutions of low viscosity solvents and high viscosity, pasty products Solutions of low viscosity solvents and high viscosity, pasty products, for example water and sodium dithionite formulations, are prepared in a continuous manner in a matter of seconds in static and dynamic mixers connected in series while at the same tim... | 10/03/1989 |
| 4816177 | Treating agent for liquid media An agent is disclosed that is useful for treating liquid media, e.g., dechlorinating aqueous media. The agent contains at least one salt from the sulfur oxide family, such as sodium sulfite. In the agent, the salt is in mixture with an organic gel forming... | 03/28/1989 |
| 4808396 | Ozone decomposing agent An ozone decomposing agent comprises at least one terpenoide capable of decomposing ozone, a liquid alcohol for dissolving therein the terpenoide, dibenzylidenesorbitol or sodium bis (4-t-butylphenyl)phosphate, and a solvent for dissolving therein dibenzy... | 02/28/1989 |
| 4804491 | Aqueous based acidic hard surface cleaner Phase, stable, hard surface cleaners are provided comprising an acidic aqueous phase in which a linear alkyl aryl sulfonic acid and an alkali metal peroxymonosulfate are dissolved. The former component can provide improved chemical stability of the solubi... | 02/14/1989 |
| 4680136 | Method for preparing compositions which can be used in the production of sodium dithionite; and the use of such compositions There is provided a method for producing compositions which can be used for preparing sodium dithionite, in which sulphur dioxide is brought into contact with a recirculating aqueous solution of sodium hydroxide and previously absorbed sulphur dioxide to ... | 07/14/1987 |
| 4590058 | Process for producing high purity solutions of alkali metal hydrosulfites High purity solutions of alkali metal hydrosulfites having low concentrations of alkali metal thiosulfates are produced in a process which comprises feeding an alcohol-free aqueous solution of an alkali metal hydrosulfite containing an alkali metal thiosu... | 05/20/1986 |
| 4568517 | Disinfection of contact lenses A contact lens is disinfected in an aqueous H2 O2 solution. The H2 O2 solution is neutralized and transformed in situ into a buffered, saline storage solution by adding a neutralizer such as sodium sulfite or so... | 02/04/1986 |
| 4524014 | Photobleach system, composition and process A photobleach system is disclosed comprising a synergistic mixture of an electron donor and a visible/ultraviolet radiation absorbing compound (a chromophore acceptor) which is capable of, in an excited electronic state, undergoing electron transfer from ... | 06/18/1985 |
| 4370402 | Dye reducing composition for dye transfers, photographic transparencies and color prints There is disclosed an aqueous composition for removing or reducing the intensity of dyes in dye transfers and the intensity of dyes used by photo retouchers on transparencies and color prints. The composition comprises, per 100 parts by weight of water, f... | 01/25/1983 |
| 4295985 | Method of removal of chlorine retained by human skin and hair after exposure to chlorinated water, and soap and shampoo compositions adapted to effect said removal This disclosure deals with removing rapidly chlorine retained by the skin and hair of, for example, swimmers, after exposure to chlorinated water by means of a stoichiometric excess of a suitable reducing agent, such as an alkali thiosulfate and the like ... | 10/20/1981 |
| 4276187 | Oxidation-reduction reagents for a wet desulfurization process and a process for preparing same An oxidation-reducing reagent for a wet desulfurization process, which comprises (a) one or more compounds selected from the group consisting of salts of substituted anthraquinonesulfonic acids of the general formulas: ##STR1## wherein M stands for a... | 06/30/1981 |
| 4244690 | Method of dyeing fibrous products According to this invention, there is provided an improved method of dyeing fibrous products characterized in that, in the dyeing of fibrous products using an oxidation-reduction dyeing type dye and an aqueous alkali solution of thiourea dioxide as a redu... | 01/13/1981 |
| 4240791 | Dyeing method for fibrous products According to this invention, there is provided a method of dyeing fibrous products characterized in that, in the dyeing of fibrous products using an oxidation-reduction dyeing type dye and an aqueous alkali solution of thiourea dioxide as a reducing solut... | 12/23/1980 |
| 4166807 | Oxygen absorbent An oxygen absorbent comprising iron and a metal halide, characterized in that the iron contains sulfur in an amount of from 0.05% to 5% on the basis of the weight of the iron is disclosed.... | 09/04/1979 |
| 4162187 | Process for production of sodium thiosulfate and sodium hydroxide Sodium sulfide or sodium hydrosulfide is oxidized to form sodium polysulfide and sodium hydroxide which may be further oxidized to sodium thiosulfate and sodium hydroxide. The oxidant is air, oxygen or oxygen in mixture with other gases, the reductant is ... | 07/24/1979 |
