Patents
Patents for C01B 15 - Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides (4,123)
10/1992
10/07/1992EP0506874A1 Concentrated aqueous liquid bleach compositions
10/06/1992US5152993 Method of preparing an implant body for implantation
10/06/1992US5152961 Method of storing perborate monohydrate
10/01/1992DE4109953A1 Lagerstabil verkapseltes partikulaeres natriumpercarbnat und verfahren zu seiner herstellung Storage-stable encapsulated particulate natriumpercarbnat and process for its manufacture
09/1992
09/23/1992EP0504741A1 A method for producing hydrogen peroxide
09/23/1992CN1064701A Peroxyacid bleach precursor compositions
09/17/1992WO1992016017A1 Cleaning liquid for semiconductor substrate
09/17/1992WO1992015522A1 New class of stable potassium monopersulfate compositions
09/16/1992EP0503516A1 Process for improving the storage stability of percabonate
09/15/1992US5147628 Process for producing alkyltetrahydroanthrahydroquinones and working solutions containing them for producing hydrogen peroxide by the anthraquinone process
09/10/1992DE4127918A1 Verfahren zur herstellung von wasserstoffperoxid A process for the production of hydrogen peroxide
09/09/1992EP0502703A1 New class of stable potassium monopersulfate compositions
09/09/1992EP0502466A1 Process for the purification of hydrogen peroxide for microelectronics
09/06/1992WO1992015521A1 Method for preparing h2o2 from the elements
09/06/1992WO1992015520A1 Direct synthesis of hydrogen peroxyde by heterogeneous catalysis, catalyst for said synthesis, and method of preparation of said catalyst
09/06/1992CA2105588A1 Method for preparing h2o2 from the elements
09/06/1992CA2105568A1 Direct synthesis of hydrogen peroxide by heterogenous catalysis, catalyst for said synthetis, and method of preparation of said catalyst
08/1992
08/25/1992US5141731 Mixing concentrated hydrogen peroxide and oxyacid in at least 2 stages
08/25/1992US5141604 Absorption of hydrogen; desorption
08/25/1992US5141561 Bony or dental filling biomaterials and processes for preparation thereof
08/18/1992US5139763 Class of stable potassium monopersulfate compositions
08/12/1992EP0498166A1 A method for producing hydrogen peroxide
08/07/1992WO1992013798A1 Peroxyacid bleach precursor compositions
08/07/1992CA2101448A1 Preoxyacid bleach precursor compositions
08/04/1992US5135731 Method for catalytic production of hydrogen peroxide
07/1992
07/29/1992EP0496605A2 Surface treating solutions and cleaning method
07/29/1992EP0496430A1 Continuous process for preparing sodium percarbonate
07/25/1992CA2059841A1 Surface treating solutions and cleaning method
07/21/1992US5132099 Method for producing hydrogen peroxide
07/14/1992US5130053 Containing a compound with aminomethylene phsophonic acid groups of substantially fixed configuration
07/09/1992WO1992011200A1 Manufacture of peroxidic compositions
07/07/1992US5128114 Catalyst supports, urea or ammonium citrate additive
07/01/1992EP0492064A1 A method for producing hydrogen peroxide
06/1992
06/23/1992CA1303819C Fixed-bed hydrogen peroxide catalyst
06/17/1992CN1017040B Hydrogen peroxide method using optimized h+ and br- concentration
06/16/1992US5122354 Stable solid crystal for bleaching, sterilization
06/11/1992WO1992009675A1 Stabilisation of percarbonate
06/10/1992CN1016959B Hydrogen peroxide production method using platinum/palladium catalysts
06/09/1992US5120524 Co-production of hydrogen peroxide and a useful ester
06/04/1992DE4038391A1 Stabilisierung von percarbonat Stabilization of percarbonate
06/03/1992EP0488671A1 Method for stabilizing acidic aqueous hydrogen peroxide solution containing copper
06/03/1992EP0487567A1 Process for granulating perborate monohydrate.
05/1992
05/28/1992CA2056242A1 Method for stabilizing acidic aqueous hydrogen peroxide solution containing copper
05/27/1992EP0487256A1 Stable sodium percarbonate particle and process for preparing same
05/20/1992EP0466902A4 Stabilization of aqueous peroxygen solutions
05/19/1992US5114701 Oxidation and reduction of an anthraquinone in carbamate
05/19/1992US5114606 Peroxy bleaches
05/14/1992WO1992007791A1 Peroxoacid manufacture
05/14/1992CA2094918A1 Peroxoacid manufacture
05/06/1992WO1992007790A1 Stabilized liquid persalt bleach compositions
05/06/1992EP0483170A1 Stabilized aqueous solution of hydrogen peroxide and preparation method.
05/06/1992CA2072757A1 Stabilized liquid persalt bleach compositions
04/1992
04/28/1992US5108742 Anhydrous complexes of PVP and H2 O2
04/21/1992US5107004 Friedel-Crafts acylation of neopentylbenzene by phthalic anhydride; cyclization of the 2-(4-neopentylbenzoyl)benzoic acid using an anhydrous acid catalyst
04/21/1992US5106464 Dialysis using cationic permselective membrane
04/16/1992WO1992006166A1 Bleaching-agent preparation
04/16/1992WO1992006036A1 Peroxidic compositions
04/14/1992US5104635 Separately introducing, hydrogen and oxygen into a liquid medium coataining catalyst
04/14/1992US5104631 Process for producing sodium perborate monohydrate, partially crystallized sodium perborate monohydrate, and washing powders for textiles
04/11/1992WO1992006918A1 Purification of hydrogen peroxide
04/11/1992CA2093791A1 Purification of hydrogen peroxide
04/07/1992US5102649 Reacting strong acid, hydrogen peroxide, and niobium compound
04/07/1992US5102575 Aqueous solution of an alkali metal hexametaphosphate, an alkali metal salt of diethylenetriamine pentamethylenephosphonic acid and potassium carbonate; to enhance storage stability
04/02/1992WO1992004976A1 Improved silica microspheres, method of improving attrition resistance and use
04/02/1992DE4030850A1 Pasty bleaching agent compsn. - comprising perborate mono:hydrate in liq. medium comprising addn. prod. of ethylene oxide with long chain satd. alcohol
03/1992
03/31/1992US5100624 Apparatus for determining the stability of a peroxygen
03/24/1992US5098303 Dental tray with reservoir for holding sustained release solution of carboxypolymethylene (Carbopol") and urea peroxide
03/19/1992WO1992004277A1 Process and apparatus for the production of hydrogen peroxide from hydrogen and oxygen
03/11/1992CA2050991A1 Procedure for cleaning filter
03/10/1992US5094827 High active oxygen content granulated sodium perborate product and method of making the same
03/05/1992WO1992003377A1 Tin (ii) stabilizer for hydrogen peroxide
02/1992
02/25/1992CA1296175C Stabilized liquid hydrogen peroxide bleach compositions
02/19/1992EP0471318A1 Process for manufacturing agglomerated sodium perborate monohydrate having improved properties
02/18/1992US5089167 Stable peracid bleaching compositions: organic peracid, magnesium sulfate and controlled amounts of water
02/18/1992CA1295809C Process for preparation of hydrogen peroxide
02/18/1992CA1295808C Process for preparation of hydrogen peroxide
02/06/1992WO1991009807A3 Stabilisation of hydrogen peroxide solutions
01/1992
01/29/1992EP0467918A1 Purification of hydrogen peroxide.
01/28/1992US5084252 Method and means for continuous precipitation of easy-dry, granular uranium peroxide
01/22/1992EP0466987A1 Purification of hydrogen peroxide
01/22/1992EP0466902A1 Stabilization of aqueous solutions containing sodium perborate or sodium percarbonate
01/21/1992US5082647 Production of hydrogen peroxide
01/09/1992DE4020856A1 Stable aq. soln. of sodium peroxo:mono:sulphate prepn.
01/07/1992US5078672 Tin (II) stabilizer for hydrogen peroxide
01/02/1992EP0463304A1 Process for preparing storage-stable sodium peroxymonosulphate solutions
12/1991
12/31/1991US5077047 Reacting fluidized bed of polymer with fine droplets of aqueou s peroxide; drying
12/30/1991CA2046000A1 Process for the production of storage-proof aqueous sodium peroxomonosulphate solutions
12/12/1991WO1991018831A1 Stabilized hydrogen peroxide
12/12/1991DE4018039A1 Microcrystalline perborate or aq. liq. prodn.
12/11/1991EP0460555A1 Process for the preparation of microcrystalline perborate products
12/10/1991US5071634 Catalytic hydrogenation of anthraquinone derivatives
12/04/1991EP0459625A1 Process for producing stabilized sodium percarbonate
11/1991
11/19/1991US5066488 Semi-anhydrous, suspension process for preparing uniform, free-flowing, fine, white powders of substantially anhydrous complexes of PVP and H2 O2 containing about 18 to about 22% H2 O2
11/15/1991WO1991018296A1 Method and apparatus for bleaching textile webs
11/15/1991CA2083036A1 Method and apparatus for bleaching textile webs
11/09/1991CA2016321A1 Process for making low density gypsum products
11/05/1991US5063043 Monolithic fixed bed hydrogenation catalyst
10/1991
10/30/1991EP0453949A1 Process for the production of alkyltetrahydroanthrahydroquinone solutions and their use as working solution in the production of hydrogen peroxide by the anthraquinone process
10/26/1991CA2041159A1 Process for producing alkyltetrahydroanthrahydroquinones and working solutions containing them for producing hydrogen peroxide by the anthraquinone process
10/17/1991CA2034058A1 Decreasing the concentration of hydroxyl ions in aqueous alkaline peroxide solutions
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