| Patent Number |
Title Of Patent |
Date Issued |
| 5759440 |
Stabilized aqueuous solution of hydrogen peroxide and process for stabilizing an aqueous solutio |
June 2, 1998 |
| Aqueous solution of hydrogen peroxide stabilized by incorporation of a composition containing a mixture of an alkali metal pyrophosphate or alkaline earth metal pyrophosphate with a stabilizer belonging to the category of aminopolycarboxylic acids corresponding to the following gener |
| 5447979 |
Organophosphonic polymers and their use as stabilisers for aqueous hydrogen peroxide solutions |
September 5, 1995 |
| Organophosphonic polymers of general formula (I) where Y is a methyl or ethyl group or hydrogen and Z is hydrogen, the ammonium group, an alcaline metal or an alcaline earth metal. A method for producing these polymers comprises three stages: production of a monomer by reacting a ketene |
| 5296239 |
Peracetic acid compositions and process for obtaining these compositions |
March 22, 1994 |
| Peracetic acid compositions containing at least one thickening agent and optionally a stabilizer chosen from sequestering agents, free-radical scavengers and mixtures containing two or more of these products.The preferred compositions are obtained by successively incorporating at least o |
| 5288936 |
Process for the synthesis of alkylated aromatic hydrocarbons |
February 22, 1994 |
| Process for the synthesis of aromatic alkylated hydrocarbons with a saturated alkyl chain including at least four carbon atoms, according to which an aromatic hydrocarbon, replaced by an alkyl group with a short saturated chain comprising one to three carbon atoms, is made to react w |
| 5086189 |
Process for the manufacture of epoxides |
February 4, 1992 |
| Epoxides are manufactured by reacting olefines, such as cyclohexene, isoamylene, alpha-pinene, allyl alcohol, 2,5-dihydrofuran and styrene, with hydrogen peroxide, in a homogeneous liquid reaction mixture containing less than 10% by weight of water, in the presence of a compound of a |
| 5082940 |
Process for the production of oxides of aromatic tertiary amines |
January 21, 1992 |
| Aromatic tertiary amines are oxidized by means of hydrogen peroxide in an inert solvent medium in the presence of a catalyst selected from metal selenium and compounds of selenium.The process is applied to the preparation of oxides of heterocyclic aromatic tertiary amines and oxides of n |
| 5044116 |
Coated seeds and a process for their obtainment |
September 3, 1991 |
| The seeds are coated with a polyester with a low melting point and a peroxy compound.The process involves treating the seeds with a peroxy compound in the presence of a solution of the polyester in an organic solvent or with the polyester in the liquid or melted state. |
| 4942800 |
Process for the manufacture of explosive cartridges, and explosive cartridges obtained using the |
July 24, 1990 |
| A process for the manufacture of an explosive cartridge in a tubular casing, including mixing a solution containing hydrogen peroxide, an oxidizable organic material, and at least one precursor monomer of a gelling agent; and reacting the at least one precursor monomer to form macrom |
| 4927512 |
Process for production of hydrogen peroxide by a chemical photoreduction of oxygen, and hydrogen |
May 22, 1990 |
| Process for the manufacture of hydrogen peroxide by photoreduction of molecular oxygen in an aqueous medium in the presence of visible light, of semicarbazide acting as an electron donor and of a photosensitizer selected from among Bengal Rose and the rutheniumII tris(2,2'-dipyridyl) |
| 4925941 |
Process for the manufacture of a 2,3-dihydroxyquinoxaline, and 2,3-dihydroxyquinoxalines thus ob |
May 15, 1990 |
| A quinoxaline is oxidized by means of hydrogen peroxide in an inert solvent medium in the presence of water and of a catalyst selected from selenium and selenium compounds.The process applies to the preparation of substituted and unsubstituted 2,3-dihydroxyquinoxalines. |
| 4861506 |
Stabilized particles of peroxygen compounds, process for their manufacture, and compositions con |
August 29, 1989 |
| Particles of peroxygen compounds chosen from alkali metal persalts, which particles are stabilized by incorporation of a combination of metal ions including magnesium ions and zinc ions. |
| 4859799 |
Process for the production of aldehyde or ketone compounds and aldehydes and ketones obtained by |
August 22, 1989 |
| Process for the production of aldehydes or ketones by oxidative cleavage of olefinic double bonds by means of a coordination complex of a ligand and a peroxo derivative of a metal of group 6b.Aldehydes and ketones obtained by said process are used among others as intermediates in the syn |
| 4845290 |
Process for the preparation of hydroxylamines and products thereby obtained |
July 4, 1989 |
| Secondary amines are oxidized with hydrogen peroxide in the presence of a catalyst chosen from derivatives of zinc or cadmium.The process is applied to the preparation of di-substituted N,N-hydroxylamines such as N,N-diethylhydroxylamines and N,N-di-n-propylhydroxylamine. |
| 4826568 |
Process for delignification of cellulosic substances by pretreating with a complexing agent foll |
May 2, 1989 |
| Process for the delignification of cellulosic substances comprising:a first stage of treatment of cellulosic substances with an acida second stage of treatment with hydrogen peroxide in an alkaline mediuma third stage of digestion in the presence of at least one chemical reactant chosen from sul |
| 4826567 |
Process for the delignification of cellulosic substances by pretreating with a complexing agent |
May 2, 1989 |
| Process for the delignification of cellulosic substances comprising:a first stage of treatment of cellulosic substances with an acida second stage of treatment with hydrogen peroxide in an alkaline mediuma third stage of digestion in the presence of at least one chemical reactant chosen from hyd |
| 4783381 |
Process for the production of electricity in a fuel cell, and fuel cell |
November 8, 1988 |
| Hydrogen peroxide (8) is introduced at the interface of an anode (5) and an alkaline anolyte (3) of a fuel cell containing, in addition, an acid catholyte (4), isolated from the anolyte by a separator which is permeable to ions (2). |
| 4752461 |
Process and appliance for the production of gaseous products by decomposition of liquids |
June 21, 1988 |
| A continuous process for the production of a gaseous product (12), and as a liquid byproduct (16), at the same time by reacting a liquid reagent in a reactor (4) is disclosed. The positive difference between the pressure at the entrance to and an pressure at the outlet of the reactor (4) |
| 4601884 |
Appliance for the production of gaseous products by decomposition of liquids |
July 22, 1986 |
| An appliance for continuous production of a gaseous product (12), and a liquid byproduct (16), at the same time by reacting a liquid reagent in a reactor (4). The positive difference between the pressure at an entrance to and the pressure at an outlet of the reactor (4) is kept constant. |
| 4595577 |
Treatment of gases containing organic sulphur compounds |
June 17, 1986 |
| Process for the treatment of waste water and gases containing dialkyl disulphides by catalytic oxidation of these compounds by means of a peroxide compound in an aqueous medium. Divalent copper ions are used for the catalyst and the medium is kept at a pH below 6.5. |
| 4576609 |
Process for the treatment of cellulosic materials with oxidizing agents and microwaves |
March 18, 1986 |
| Cellulosic materials and more particularly wood shavings, pulps, and cellulosic textile fibres are exposed to the combined action of microwaves and at least one oxidizing agent.In particular, the process makes it possible to improve the brightness of the end product. |
| 4563355 |
Food compositions for pigs and processes for the feeding of pigs |
January 7, 1986 |
| The food compositions for pigs contain calcium peroxide. Calcium peroxide is administered to the pigs via the oral route in a proportion of 0.02 to 1.3 % by weight of the total food ration.The percentage of lean meat and the quality of the carcasses are thus substantially improved. |
| 4548674 |
Process for the regeneration of waste paper |
October 22, 1985 |
| Waste paper containing polymeric contaminants is broken down in the presence of an acidic aqueous solution containing at least one peracid. |
| 4470839 |
Solid particles containing metal peroxides, their preparation and their use for the amendment of |
September 11, 1984 |
| Solid particles of metal peroxide are coated by means of a coating agent containing a water-soluble condensed phospahte. |
| 4443342 |
Treatment of waste water containing organic sulphur compounds |
April 17, 1984 |
| Process for the treatment of waste water and gases containing dialkyl disulphides by catalytic oxidation of these compounds by means of a peroxide compound in an aqueous medium. Divalent copper ions are used for the catalyst and the medium is kept at a pH below 6.5. |
| 4428914 |
Process for making sodium percarbonate granules |
January 31, 1984 |
| A process for the production of sodium percarbonate granules comprises the steps of impregnating seeds with an aqueous phase or phases containing sodium percarbonate or its precursors, and evaporating water from the impregnated seeds in a fluidized bed dryer in the presence of at least o |
| 4421669 |
Process for the stabilization of particles containing peroxygen compounds and bleaching composit |
December 20, 1983 |
| Process for the stabilization of particles containing peroxygen compounds and bleaching compositions containing particles stabilized according to this process. The particles containing peroxygen compounds are kept in a fluidized bed. A coating agent which is insoluble in water and melts |
| 4390395 |
Process for the regeneration of waste paper |
June 28, 1983 |
| The dry waste paper is directly fed in a disintegrator, functioning with a pulp consistency, at the disintegrator outlet, of between 20 and 50%, where it is disintegrated in the presence of an aqueous phase and at least one bleaching agent. |
| 4381969 |
Process for the regeneration of waste paper |
May 3, 1983 |
| Waste paper containing encapsulated constituents such as inks is bleached by pulping it in the presence of an aqueous alkaline solution which contains a peroxide compound such as hydrogen peroxide. |
| 4372813 |
Process for inhibiting the corrosion of equipment made of titanium |
February 8, 1983 |
| Process for inhibiting the corrosion of equipment made of titanium or of alloys containing titanium by a solution containing a peroxy compound. To effect the inhibition, a solution containing calcium, strontium or barium ions is used. |
| 4353832 |
Process for the preparation of carboxyl compounds |
October 12, 1982 |
| A process for the production of carboxyl compounds such as caprolactones, in which the corresponding carbonyl compounds are oxidized with hydrogen peroxide in the presence of a catalyst in a substantially anhydrous liquid medium. The water formed by the reaction and any water introduced |
| 4346081 |
Compositions for ingestion by ruminants to remove protozoa, process for their preparation and us |
August 24, 1982 |
| A composition for ingestion by ruminants to remove protozoa contains a peroxide of a metal of group 2 of the Periodic Table. |
| 4344979 |
Process for the preparation of coated seeds |
August 17, 1982 |
| A process for the preparation of coated seeds, in which the seeds are initially treated with an aqueous phase. The treated seeds are then coated with a coating agent containing a peroxide compound and a hydrophilic polymer, and the coated seeds are dried. |
| 4343679 |
Process for reclaiming waste paper |
August 10, 1982 |
| Process for reclaiming waste paper without deinking which involves pulping the waste paper in the presence of soft water and then adding to the pulp thus obtained a compound capable of liberating, in aqueous solution, ions with a positive charge equal to or greater than 2. |
| 4329244 |
Particles of stabilized peroxygenated compounds, process for their manufacture, and composition |
May 11, 1982 |
| Particles of peroxygenated compounds stabilized with polymers, possessing hydroxyl groups and carboxyl groups, which contain monomeric units of the formula ##STR1## where R.sub.1 and R.sub.2 represent hydrogen or an alkyl group containing from 1 to 3 carbon atoms and where M repr |
| 4326976 |
Composition and process for washing and bleaching |
April 27, 1982 |
| Particulate washing and bleaching compositions containing a peroxy compound and an alkali carbonate have their tendency to cake during storage reduced by incorporating within the compositions an alkaline aryl sulphonate, such as sodium methyl naphthalene sulphonate, and a water-insoluble |
| 4326035 |
Process for the culture of aerobic microorganisms |
April 20, 1982 |
| Process for the culture of aerobic microorganisms in a culture medium provided with at least one source of oxygen, at least one source of carbon and at least one source of hydrogen, comprises providing oxygen originating from the decomposition of hydrogen peroxide as a source of oxyg |
| 4321301 |
Process for stabilizing particles of peroxygenated compounds |
March 23, 1982 |
| Process for stabilizing particles of peroxygenated compounds by coating by means of a solid coating agent comprises applying a coating agent which contains at least one boron compound from metaboric acid, orthoboric acid and tetraboric acid. |
| 4312811 |
Process for the production of substituted anthraquinones |
January 26, 1982 |
| Substituted anthraquinones are obtained by thermal or catalytic dehydrochlorination of the corresponding substituted ortho-benzoylbenzoic acid chloride.They may be used for the production of hydrogen peroxide and the synthesis of dyes. |
| 4293426 |
Coated calcium peroxide particles useful in the treatment of water |
October 6, 1981 |
| Solid particles containing calcium peroxide and coated with a coating agent containing a water-insoluble solid compound having a melting point of at least 50.degree. C.The particles can be used in the treatment of water and make it possible to ensure sufficient oxygenation for very long |
| 4215097 |
Process for the manufacture of sodium perborate monohydrate and product thereof |
July 29, 1980 |
| Abrasion resistant granules of sodium perborate monohydrate are made by introducing an aqueous solution containing hydrogen peroxide and an aqueous solution containing sodium metaborate simultaneously into a fluidized bed dryer which contains seeds of a size smaller than that of the |
| 4185960 |
Super-oxidized solid sodium perborate and processes for its manufacture |
January 29, 1980 |
| Superoxidized solid sodium perborate contains more than 17 wt.% active oxygen and less than 1.4 atoms hydrogen per active oxygen atom. The superoxidized solid sodium perborate in particle form is prepared by simultaneously introducing, into a fluidized bed dryer containing seeds of d |
| 4125543 |
Process for preparing epoxides |
November 14, 1978 |
| The invention concerns a process for the preparation of epoxides by reaction of olefins with a percarboxylic resin. The percarboxylic resins are washed with a solvent containing water before being brought in contact with the olefins. |
| 4115519 |
Manufacturing process for sodium perborate monohydrate and product obtained according to the pro |
September 19, 1978 |
| Abrasion resistant granules of sodium perborate monohydrate are made by introducing an aqueous solution containing hydrogen peroxide and an aqueous solution containing sodium metaborate simultaneously into a fluidized bed dryer which contains seeds of a size smaller than that of the |
| 4105827 |
Particulate peroxygen compounds coated with sodium sesquicarbonate or Na.sub.2 SO.sub.4 mNa.sub. |
August 8, 1978 |
| Particulate peroxygen compounds selected from alkali metal percarbonates, perpyrophosphates, pertripolyphosphates and peroxymonosulphates are stabilized by coating the particles with a mixed salt selected from sesquicarbonate having the formula Na.sub.2 CO.sub.3.NaHCO.sub.3.2H.sub.2 |
| 3992317 |
Particulate peroxygen compounds |
November 16, 1976 |
| Particulate peroxygen compounds such as sodium percarbonate are coated with a copolymer of vinylidene chloride and another copolymerizable monomer. These coated compounds can be used in detergent mixtures. The coating of peroxygen compound with such films protect the compound from the ef |
