Patents
Patents for C01B 33 - Silicon; Compounds thereof (28,579)
09/1999
09/16/1999WO1999036354A3 Method of producing substantially spherical lyogels in water insoluble silylating agents
09/16/1999DE19810565A1 Economical drying of microporous particles containing fluid e.g. inorganic, organic or polymer gel
09/16/1999DE19810564A1 Process for drying microporous particles used in production of thermal insulating materials
09/16/1999DE19810317A1 Rare earth metal sulfide pigments useful in paint, lacquer, printing ink, plastics and cosmetics
09/15/1999EP0941964A1 Process for producing silica particles suitable for use as filler for paper
09/15/1999EP0941100A2 Pharmaceutical compositions containing lamivudine and zidovudine
09/14/1999US5952108 Silicon oxide on a substrate
09/14/1999US5952095 Intercalates and exfoliates formed with long chain (C10 +) monomeric organic intercalant compounds; and composite materials containing same
09/14/1999US5951962 Mesoporous silica, its preparation and its use
09/14/1999US5951724 Fine particulate polishing agent, method for producing the same and method for producing semiconductor devices
09/14/1999CA2011038C Amorphous silica-alumina spherical particles and process for preparation thereof
09/12/1999CA2265234A1 Process for producing silica particles suitable for use as filler for paper
09/08/1999EP0805781B1 Process for the production of modified aerogels
09/08/1999EP0799155B1 Manufacture of carbonyl fluoride
09/07/1999US5948482 Ambient pressure process for preparing aerogel thin films reliquified sols useful in preparing aerogel thin films
09/07/1999US5948314 Composition containing an aerogel, method of producing said composition and the use thereof
09/01/1999EP0938452A1 Value improvement of clays
09/01/1999EP0938375A1 Fe- and al-containing synthetic polysilicic acid (silica) for refining oils
09/01/1999EP0750588B1 Improved process for preparing water soluble polyaluminosilicates
09/01/1999CN1227186A Method for preparing hydrophobic clay
08/1999
08/31/1999US5945525 Mixing composite particle of superparamagnetic oxide and fine silica with polynucleotide solution and chaotropic agent, separating particle from solution using magnetic field, eluting polynucleotide from carrier
08/26/1999WO1999042518A2 Organophilic phyllosilicates
08/25/1999EP0937755A1 Precipitated silica granules
08/25/1999EP0937682A1 Aluminosilicate organic inorganic polymer
08/24/1999US5942590 Adjusting ph of a mixture of silica hydrosol with specific particle size and colloidal silica with a base at a prefered temperature to form silica hydrogel, mixing it with strong acid and silicon compounds forming hydrophobic silica gel
08/18/1999EP0935996A2 A composition of matter, comprising an inorganic porous material and a method for preparing the same
08/18/1999CN1226155A Flavour-compatible silica, method for preparing same and toothpaste compositions thereof
08/18/1999CN1225911A Porous inorganic particulate material
08/17/1999US5939040 Method for producing crystalline, inorganic ion exchange material
08/17/1999CA2003351C Method of preparing heteropolyacid catalysts
08/12/1999WO1999039574A2 Silicate-containing powders providing controlled, sustained gas release
08/11/1999CN1044597C Process for producing fiber-reinforced xerogels and their use
08/10/1999US5935715 Draft roller for fibers and preparation thereof
08/10/1999US5935543 Low specific resistance; for battery seperators
08/05/1999WO1999038542A1 A synthetic biomaterial compound
08/05/1999DE19757795A1 Mixing and spray appts for the prodn of hydrogels
08/04/1999EP0933341A2 Ceramic fiber insulation material
08/04/1999EP0870005A4 Improved organoclay products containing a branched chain alkyl quaternary ammonium ion
08/04/1999CN1225074A Abrasive silica to be used in toothpaste
08/04/1999CN1044449C Method for producing FeY zeolite
08/03/1999US5932191 Abrasive silicas for toothpaste compositions
07/1999
07/29/1999WO1999037705A1 Block polymer processing for mesostructured inorganic oxide materials
07/29/1999WO1999037409A1 Functionalized porous silicon surfaces
07/28/1999EP0931018A1 Method of inhibiting gelling of siloxane feedstocks and a gel inhibited feedstock
07/28/1999EP0931017A1 Method for producing dispersible aluminium silicates
07/28/1999EP0931016A1 Method for producing dispersible aluminium silicates
07/28/1999EP0930935A1 Compositions and insulation bodies having low thermal conductivity
07/28/1999EP0815061B1 Method and device for melting recycled silicate starting materials
07/28/1999EP0703993B1 Method for treatment of residues from organochlorosilane and/or chlorosilansynthesis
07/28/1999CN1044356C Method for preparation of modified zeolite builder in detergent powder
07/27/1999US5929156 Adding an acid to a mixture of water, alkali metal silicate at a prefered ph, heating, adding more of silicate while simultaneously controlling rate of acid addition, discontinuing silicate addition, heating, filtering, washing
07/27/1999CA2089388C High performance pigments of low oil absorption: preparation, properties and end-use applications
07/22/1999WO1999036480A1 Method of preparing treated silica
07/22/1999WO1999036479A1 Method of preparing organically modified silica
07/22/1999WO1999036360A1 Silica microbeads having sensory properties in the mouth, their method of production and toothpaste products containing same
07/22/1999WO1999036359A1 Process for making silanized colloidal silica
07/22/1999WO1999036358A1 Continuous production of silica via ion exchange
07/22/1999WO1999036357A1 Mesoporous materials and methods of making the same
07/22/1999WO1999036356A2 Polyfunctional organosilane treatment of silica
07/22/1999WO1999036355A2 Method of preparing hydrophobic silica
07/22/1999WO1999036354A2 Method of producing substantially spherical lyogels in water insoluble silylating agents
07/22/1999CA2313182A1 Method of producing substantially spherical lyogels in water insoluble silylating agents
07/21/1999CN1223232A Method for making sodium metasilicate by utilizing quick cooling crystallization
07/21/1999CN1223231A Mouldings based on pyrogenic silicon dioxide
07/20/1999US5925708 Precipitated silicas
07/20/1999US5925589 Process for the manufacture of a support for olefin polymerization catalysts and process for the polymerization of olefins
07/15/1999WO1999035086A1 A process for the preparation of granular silica
07/15/1999WO1999035085A1 Optimally dispersible precipitated silica particulates, process for their preparation and their use
07/15/1999DE19801004A1 Production of spherical lyogel useful as precursor for permanently hydrophobic aerogel
07/14/1999EP0928818A2 Method for preparing hydrophobic fumed silica
07/14/1999EP0866769B1 Process for recovery of alumina and silica
07/14/1999CN1044111C Potash and nitrogenous fertilizer mfg. process from illite
07/14/1999CA2258394A1 Ceramic fiber insulation material
07/13/1999US5922360 Stabilizing the preparation wiht quaternary ammonium compound and/or amino acid; inhibits aqueous solution polycondensation; biological preparation used for inhibitingdegenerative process, stimulant for immune system
07/13/1999US5922298 Very low shrinkage; used to form battery separators
07/13/1999CA2084979C Prevention of blockage of charge feed tube in smelting furnace
07/08/1999WO1999033765A1 Method of producing synthetic silicates and use thereof in glass production
07/08/1999WO1999033749A1 PROCESS FOR THE PREPARATION OF HIGH-PURITY Si AND EQUIPMENT THEREFOR
07/08/1999WO1999033554A1 Device for the mixing and subsequent atomizing of liquids
07/08/1999CA2315684A1 Apparatus for mixing and subsequent atomization of liquids
07/07/1999EP0927748A1 Method for preparing hydrophobic clay
07/07/1999CN1221705A Prodn. method of spherical silica gel
07/07/1999CN1043966C Compsn. for passivating vanadium in catalytic cracking and prepn. thereof
07/06/1999US5919427 Pore size catalyst
07/06/1999US5919298 Method for preparing hydrophobic fumed silica
07/06/1999CA2020406C Chromatographic separation process for recovering either 2,6-det or 3,5-det from a mixture thereof with another det isomer
07/06/1999CA2020131C Controlled porosity silica and process to prepare it
07/01/1999WO1999032410A1 Burner and method for producing metal oxide soot
07/01/1999WO1999032403A1 Polyester nanocomposites for high barrier applications
07/01/1999WO1999032402A1 Method and installation for refining silicon
07/01/1999WO1999032401A1 Method for the preparation of carbonated hydroxyapatite compositions
07/01/1999WO1999032218A1 A method for the sub-critical drying of lyogels to produce aerogels
07/01/1999CA2310317A1 A method for the sub-critical drying of lyogels to produce aerogels
07/01/1999CA2309136A1 Burner and method for producing metal oxide soot
06/1999
06/30/1999EP0926210A1 Silicon oxide bearing on its surface partially or completely sylilated polysilicic acids chains
06/30/1999EP0925829A1 Acid activated clay for treating aromatic hydrocarbons
06/30/1999EP0925257A1 Abrasive silica to be used in toothpaste
06/30/1999EP0925256A1 Process for producing organically modified aerogels
06/30/1999CN1221393A Silica capable of being used in toothpaste composition
06/30/1999CN1043845C Toothpaste composition containing silicon dioxide compatible with metallic cation