| Patents for C04B 33 - Clay-wares (6,767) |
|---|
| 11/21/1991 | EP0456786A1 Processing of ceramic materials with radio-frequencies of the microwave and uhf zones both modulated or non-modulated |
| 11/20/1991 | CN1056264A Filler of washing ceramic ring |
| 11/19/1991 | US5066333 Filler for patterning of ceramics product and process for producing the same |
| 11/14/1991 | WO1991017128A1 High opacity defined kaolin product and method of producing same |
| 11/13/1991 | EP0456363A2 High opacity defined kaolin product and method for producing same |
| 11/06/1991 | CN1055911A Technology for calcining black pottery |
| 10/30/1991 | EP0453886A1 Fireclay brick for the use as tinbath-bottom block |
| 10/30/1991 | EP0445289A4 Method of obtaining chromium-containing refractory material |
| 10/23/1991 | EP0453260A1 The treatment of mineral surfaces |
| 10/23/1991 | CN1055526A Refined kaolin calcined from kaolinite |
| 10/19/1991 | CA2040560A1 Process for the treatment of mineral surfaces |
| 10/02/1991 | EP0449534A1 Method of producing ceramic products |
| 10/02/1991 | CN1054962A Method for making extra-large eggshell china bowl with high-white glaze |
| 09/25/1991 | CN1014048B Glazed brick using tailings of lead-zinc ore as primary material and its technology |
| 09/19/1991 | WO1991013841A1 Plant for drying sanitary appliances and moulds thereof |
| 09/19/1991 | WO1991013714A1 Process for manufacturing metallic or ceramic materials |
| 09/19/1991 | DE4033227A1 Metallic or ceramic article prodn. - by moulding or casting film-forming material contg. metals or ceramic raw materials |
| 09/17/1991 | US5049532 Method for surface treating thixotropic agents and the resultant low moisture thixotrope |
| 09/17/1991 | US5049166 Metal carbonate |
| 09/12/1991 | DE4006826A1 Processing e.g. refuse incineration ash contg. hazardous material - to uniform, miscible consistency for mixing with expandable sedimentary rock |
| 09/12/1991 | DE4003022A1 Mug glazing - has support for clamped mug to turn through 180 deg. to spray fluid glaze inside and outside |
| 09/11/1991 | EP0445289A1 Method of obtaining chromium-containing refractory material |
| 09/10/1991 | CA1288782C High strength porcelains for use in insulators and production thereof |
| 09/05/1991 | WO1991012945A1 Ware drying |
| 09/05/1991 | WO1991012871A1 Pressurized purging of a liquid drain for a vacuum system |
| 09/04/1991 | CN1054243A Method for production of building materials with waste chrome dregs |
| 08/22/1991 | WO1991012052A1 Process for environmentally safe disposal of noxious solid, liquidand/or gaseous substances at temperatures of 400 to 1800 degrees |
| 08/21/1991 | CN1053915A Method for manufacture of ceramic plate with far-infrared radiation |
| 08/20/1991 | CA1287704C Vermiculite moulding compositions and articles made therefrom |
| 08/08/1991 | DE4013505C1 Tunnel kiln for ceramics - incorporates counterflow offtake channels for gases evolved during firing |
| 08/07/1991 | EP0263859B1 Process for preparing filter dust, dredging sludge (harbour sludge) and similar waste matter for final disposal |
| 08/01/1991 | WO1991011407A1 Method of making large cross-section injection molded or slip cast ceramics shapes |
| 08/01/1991 | CA2074516A1 Method of making large cross-section injection molded or slip cast ceramic shapes |
| 07/31/1991 | EP0438509A1 Metal oxide dielectric dense bodies, precursor powders therefor, and methods for preparing same. |
| 07/30/1991 | CA1287118C Dielectric drying process for honeycomb structures |
| 07/24/1991 | EP0437905A1 Ceramic slip and tape casting composition and process of making ceramics |
| 07/23/1991 | US5034448 Ceramic formed in a casting process with polyalkylene polyamine |
| 07/23/1991 | US5034062 Use of acid-containing anionic emulsion copolymers as calcined clay slurry stabilizers |
| 07/17/1991 | EP0437132A1 Pillared clays having large interlayer spacing and process for their preparation |
| 07/17/1991 | CN1053035A Fabrication method for ceramic-glass paintings |
| 07/11/1991 | DE4103715A1 Plant for treating household and industrial waste - has bunker for supplying waste, fermentation reactor, carbonisation drum and second fermentation reactor |
| 07/10/1991 | EP0436220A1 Ceramic composition |
| 07/09/1991 | US5030603 Lightweight oil and gas well proppants |
| 07/09/1991 | US5030595 Carbon bake refractories |
| 07/09/1991 | US5030397 Method of making large cross section injection molded or slip cast ceramics shapes |
| 07/09/1991 | CA2007358A1 Concrate-rock wool, non combustible building system |
| 07/03/1991 | CN1052651A Low-loss water-saving fast made method for clays burnt product |
| 07/02/1991 | US5028569 Ceramic article, raw batch formulation, and method |
| 07/02/1991 | US5028351 Intercalated Organic Amine Salts, Pyridine Salts Or (Meth)acrylamide Polymers; Thickeners, Protective Colloids, Dispersants, Binders |
| 06/26/1991 | EP0433886A1 Process for the production of an inorganic barium containing composition of solids |
| 06/26/1991 | EP0433684A2 Process for the recovery of inorganic industrial waste |
| 06/25/1991 | US5026412 Calcining kaolin, clay, magnesium, potassium and fluorine raw materials to fluorophogopite and glass; grinding, shaping and firing to ceramic |
| 06/13/1991 | WO1991008177A1 Processing of ceramic materials with radio-frequencies of the microwave and uhf zones both modulated or non-modulated |
| 06/05/1991 | EP0430232A1 Ash and paper treatment |
| 05/31/1991 | CA2029669A1 Ash and paper treatment |
| 05/22/1991 | EP0334950A4 Improved casting process |
| 05/15/1991 | EP0426813A1 Process for manufacturing clinkers. |
| 05/09/1991 | WO1991013039A1 Method of firing ceramic building materials |
| 05/08/1991 | CN1051162A Sintering method for clay products |
| 05/01/1991 | WO1991006514A1 Method for production of construction articles; technological line; method and device for burning; mixture; construction article |
| 05/01/1991 | CA2071519A1 Process for making building products, production line, process for firing, apparatus for firing, batch, building product |
| 04/17/1991 | CN1050751A Sericite china clay as paper-making coating and production method thereof |
| 04/16/1991 | US5008053 Process for producing a ceramic product using sludge ashes |
| 04/10/1991 | EP0421418A2 Method for preparing a ceramic-forming prepreg tape |
| 04/10/1991 | EP0421391A1 Production process for machinable ceramics |
| 04/04/1991 | CA2026699A1 Production process of machinable ceramics |
| 03/27/1991 | CN1050132A Ceramic cooking utensils and the making method thereof |
| 03/13/1991 | CN1049839A High-alumina high-strength household porcelain and its production method |
| 03/06/1991 | CN1049646A Tunnel type drying chamber |
| 02/14/1991 | DE3926649A1 Ceramic material prodn. from sediments - esp. silt and sludge contg. water and combustible (non-)volatile matter |
| 02/13/1991 | EP0412722A2 Process for preparing whiteware ceramic articles |
| 02/13/1991 | EP0412230A1 Process for producing a ceramic product using sludge ashes |
| 02/13/1991 | CN1049148A Fine coal ash sintered brick prescription |
| 02/06/1991 | EP0411052A1 Process for the chemical bonding of heavy metals from sludge in the silicate structure of clays and shales and the manufacture of building and construction materials therewith |
| 01/31/1991 | DE3925063A1 Drying system for longer ceramic mouldings partic. tiles - dry air is passed over mouldings on plate while simultaneously hot air passes underneath and then rejoins dry air stream |
| 01/29/1991 | US4988464 Method for producing powder by gas atomization |
| 01/22/1991 | CA1279154C Dental compositions, fired dental porcelains and processes for making and using same |
| 01/16/1991 | EP0408043A1 Inert ceramic catalyst bed support |
| 01/08/1991 | US4983563 Consolidation, heat treatment, roasting; catalysts and supports |
| 01/08/1991 | US4983556 Alumina, feldspar, silica sand, china stone and clay are mixed, shaped, dried, and fired |
| 01/02/1991 | EP0404864A1 Energy conserving process for calcining clay. |
| 01/02/1991 | CN1048211A Manufacturing method of red stone porcelain |
| 01/01/1991 | US4981824 Tensile strength, bismuth |
| 12/25/1990 | US4979895 Shield |
| 12/19/1990 | EP0402746A1 Process for the recycling of muddy or dusty accumulated special waste |
| 12/11/1990 | US4977116 Method for making lightweight proppant for oil and gas wells |
| 12/05/1990 | EP0400659A1 Method for producing powder by gas atomization |
| 12/01/1990 | WO1990014899A1 Process for manufacturing clinkers |
| 12/01/1990 | CA2033342A1 Process for manufacturing clinkers |
| 11/28/1990 | CN1047273A Dry-pressed unfired clay brick, productive method and apparatus thereof |
| 11/27/1990 | US4973566 Cordierite material useful in a heat source retainer and process for making the same |
| 11/21/1990 | CN1047031A Tri-coloured glazed pottery of the tang dynasty ceramic cinerary casket and its preparation technology |
| 11/14/1990 | CN2065542U Hot rolling press |
| 11/14/1990 | CN1046884A Method of making glazed tile |
| 11/07/1990 | EP0328560B1 Mineral substance, process for its manufacture and use thereof |
| 11/07/1990 | CN1046728A Magnetically therapeutic ceramic product and manufacture thereof |
| 11/06/1990 | US4968651 Inert ceramic catalyst bed supports |
| 11/04/1990 | CA2013623A1 Cationically process calcined kaolin clay |
| 10/31/1990 | EP0394616A2 Process for operating a continuous furnace |
| 10/31/1990 | DE3913560A1 Heavy metal (cpd.) immobilisation in dust - by mixing dust with ceramic material and firing |