Patents for C04B 38 - Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof (15,246) |
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07/12/1990 | WO1990007474A1 Method of producing ceramic products using sludge of sewage treatment |
07/12/1990 | DE3916586C1 Porous ceramic objects mfr. - using solid aggregate pore formers of aliphatic and/or alicyclic non-saccharide poly:ol(s) |
07/11/1990 | CN2059164U Foam powder coal ash plate |
07/11/1990 | CN1008729B Bubble-like ceramic filtering device for filtering liqud metal and its preparation process |
07/11/1990 | CA2007450A1 Ceramic filter for the filtering of molten metals |
07/10/1990 | CA2003944A1 Phosphate-containing ceramic structure for catalyst support and fluid filtering |
07/05/1990 | DE3841117C1 Process for producing steam pressure-cured gas concrete |
07/04/1990 | WO1990007478A1 Incandescent mantles |
07/04/1990 | EP0376690A1 Fired product utilizing incineration ash and method of production thereof |
07/04/1990 | CA2047227A1 Incandescent mantles |
07/03/1990 | US4939028 Microporous composites and electrolytic applications thereof |
07/03/1990 | US4938905 Method of controlling the orientation of short fibers in a short fiber-reinforced article |
07/03/1990 | US4938829 Process of making a diaphragm of vitreous hard carbonaceous material for an acoustic device |
06/28/1990 | WO1990007013A1 Porous refractory material, article made thereof and method for making said article |
06/28/1990 | CA2006854A1 Fired product utilizing incineration ash and producing method thereof |
06/27/1990 | EP0375235A1 Process for the manufacture of mineral fibre compositions |
06/26/1990 | US4937210 Production of porous inorganic materials |
06/26/1990 | US4937209 Porous inorganic materials |
06/26/1990 | US4936270 Composite light alloy member |
06/21/1990 | DE3926411A1 Ceramic filter for liquids - obtd. by sintering porous sprayed granular material made from aluminium oxide, kaolin and talc |
06/20/1990 | EP0373215A1 Porous inorganic membrane with reactive inorganic binder, and method of forming same. |
06/19/1990 | US4935178 Water absorbing mold which is vibrated to increase contact-sintering after hardening and removal |
06/19/1990 | CA1270498A1 Hydrophobic inorganic structure |
06/16/1990 | CA2004977A1 Process for the manufacture of mineral fibre compositions |
06/12/1990 | US4932786 Bubble generator for cellular concrete |
06/12/1990 | US4932438 Valve provided with valve bodies made of a ceramic compound |
06/12/1990 | US4932426 Causing a quick outflow of air, releasing and carrying loose fibers |
06/05/1990 | CA1269804A1 Method for the production of a moulding mass containing water glass |
05/31/1990 | DE3835851C1 Method of manufacturing artificial stones |
05/23/1990 | EP0369638A1 Sol gel derived ceramic bubbles |
05/23/1990 | EP0369330A2 High temperature filter |
05/22/1990 | US4927673 Rapid technique for making improved laminar ceramic shell molds using a phosphate modified aluminum salt binder |
05/22/1990 | US4927611 Lightweight magnesia clinker and process for the preparation of the same |
05/22/1990 | CA1269404A1 Porous membrane of sinterable refractory metal oxides or silica |
05/17/1990 | WO1990005123A1 Refractory for cast molding |
05/16/1990 | CN2057210U Microporous ceramic sand filter |
05/15/1990 | US4925631 Method of casting a hopcalite filter and cast ceramic fiber-hopcalite |
05/15/1990 | US4925584 Compression of mixture containign an ammonia generating compound |
05/15/1990 | US4925490 Mechanical seal using pore-dispersed material, and pore-dispersed cemented carbide and method for manufacturing same |
05/14/1990 | CA2001192A1 High temperature filter |
05/08/1990 | US4923830 Ceramic bodies formed from partially stabilized zirconia |
05/08/1990 | US4923829 Sintered body of interlocked silicon nitride with carbides, nitrides, borides or silicides; shockproof, heat resistance |
05/08/1990 | US4923747 Ceramic thermal barriers |
05/08/1990 | US4923608 Micro/ultrafiltration membranes with a fixed pore size formed through irradiation with pulsed lasers and process for manufacturing the same |
05/03/1990 | WO1990004707A1 Device for burning out solids, and process for manufacturing said device |
05/02/1990 | EP0366028A2 Process for the production of a material containing clay and fibres |
05/02/1990 | EP0365826A1 Process and device for the production of mineral-fibre boards |
05/02/1990 | CN2056604U Dynamic membrane water filter using porous ceramic filter as back line |
05/02/1990 | CN1041748A Reinforced light concrete products and making method thereof |
05/01/1990 | US4921616 Alveolar ceramic filters for high melting metals |
04/26/1990 | DE3835794A1 Process for producing a structured ceramic sheet or a ceramic body built up of such sheets |
04/25/1990 | EP0365327A2 Method of preparation of porous carbon material and material produced by the method |
04/25/1990 | EP0365022A2 Process for the production of artificial stones |
04/25/1990 | CN1041648A High strength light weight rice hull ash insulation brick and its producing method |
04/25/1990 | CA2001330A1 Infrared heater for fluid immersion apparatus |
04/24/1990 | US4919860 Manufacture of porous carbon membranes |
04/24/1990 | US4919751 Phase seperation of calcium oxide |
04/21/1990 | CA2000994A1 Method of preparation of porous carbon material and material produced by the method |
04/19/1990 | WO1990003874A1 Casting mold for slip casting and slip casting method |
04/18/1990 | EP0364297A2 Porous carbon electrode substrates for fuel cells |
04/18/1990 | EP0320036B1 Process for the separation of ashes at the combustion of coal to produce gas |
04/17/1990 | US4917935 Ceramic packing |
04/17/1990 | US4917857 Process for producing metallic or ceramic hollow-sphere bodies |
04/17/1990 | US4917835 Partially curing phenolic resin, grinding, forming and sintering |
04/11/1990 | EP0362400A1 Method of firing ceramic honeycomb structure |
04/11/1990 | EP0362213A1 Process for manufacturing a structured ceramic film or a ceramic object composed of such films. |
04/05/1990 | WO1990003349A1 Process for the production of porous ceramics using decomposable polymeric microspheres and the resultant product |
04/04/1990 | EP0361326A2 Silicon-infiltrated silicon carbide parts with a porous surface, and method of making them |
04/04/1990 | EP0214066B1 Consolidated microporous material, process for its preparation and its applications, particularly to producing cathode elements |
03/28/1990 | EP0360606A2 Preparation of elastic graphite materials |
03/28/1990 | EP0360593A2 Method of producing porous ceramic honeycomb structural bodies |
03/28/1990 | EP0360591A2 Honeycomb structural body and method of producing the same |
03/28/1990 | EP0360563A2 Method of producing ceramic honeycomb structural bodies |
03/28/1990 | EP0360404A1 Calcium dialuminate/hexaluminate ceramic structures |
03/28/1990 | EP0360244A1 Porous ceramic sinter and process for producing same |
03/27/1990 | US4912076 Filter for cleaning exhaust gases of diesel engines |
03/27/1990 | US4912070 Continuously porous absorbent material possessing far infrared electromagnetic field |
03/27/1990 | US4911788 Forming aqueous slurry; mixing to uniform distribute solids; dehydrating, drying, abrading |
03/14/1990 | EP0357789A1 Process of producing a ceramic honeycomb structural body |
03/13/1990 | US4908339 Flexible glass |
03/13/1990 | US4908200 Treating carbon material with nitric acid or nitric-sulfuric acid mixture, treating with basic aqueous solution to precipitate carbon component, graphitizing |
03/13/1990 | US4908174 Placing hardenable plastic material and accelerator into mold, the composition containing a water in oil emulsion, hardening, dewatering, drying |
03/13/1990 | CA1266685A1 Controlled pore size ceramics particularly for orthopaedic and dental applications |
03/06/1990 | US4905971 Refractory ceramic sink |
02/28/1990 | EP0355916A2 Porous composite ceramic structure |
02/27/1990 | US4904427 Inorganic power, organic solvent foaming agent and vinyl chloride polymer |
02/27/1990 | US4904291 Sintering of powder and an inorganic salt, with a defined grade of grain which has a higher desielication temperature |
02/27/1990 | US4903617 Process of removing the ash from the gas produced by the combustion of coal |
02/27/1990 | CA1266251A1 Formation of aluminium oxide film by anodization, voltage reduction and separation |
02/22/1990 | WO1990001471A1 Method of preparing rigid mullite-whisker felt |
02/22/1990 | WO1990001259A1 Substrate for plants and its use |
02/20/1990 | US4902563 Carbonaceous fiber or fiber assembly with inorganic coating |
02/20/1990 | US4902314 Ceramic honeycomb |
02/14/1990 | EP0354839A2 Porous inorganic body and process for preparing the same |
02/14/1990 | EP0354721A2 Porous ceramic honeycomb filter and method of producing the same |
02/13/1990 | US4900698 Ceramic product and process |
02/13/1990 | US4900483 Method of producing isotropically reinforced net-shape microcomposites |
02/13/1990 | US4900359 Cellular concrete |
02/13/1990 | US4900245 Lithium aluminum silicate ceramic; backflash prevention |
02/07/1990 | EP0353669A2 Process for producing ceramic bodies |