| Patents for C04B 41 - After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone (26,090) |
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| 04/18/1991 | DE3934515A1 Coating silicon carbide body with corrosion resistant layer - by dissolving out silicon from pores in surface and filling with inert metal produced in high temp. redn. process |
| 04/18/1991 | DE3933039A1 Inhibiting oxidn. of carbon fibre reinforced carbon moulding - by chemical vapour infiltration or deposition of pyrolytic carbon and opt. silicon carbide |
| 04/17/1991 | EP0423005A1 Hydrazinbath for chemical plating platin and or palladium and process for preparing such a bath |
| 04/17/1991 | EP0422987A1 Composite structure resistant against thermal shocks and application to ceramic multilayer capacitors and thermal drain |
| 04/17/1991 | EP0422340A1 Panel for applying to a building and method for producing the same |
| 04/17/1991 | EP0237530B1 Filter body |
| 04/16/1991 | US5008422 Polymerization using transition metal catalysts; pyrolysis to ceramics, such as silicon nitride, silicon carbide |
| 04/16/1991 | US5008223 Calcining silicon dioxide and zirconium oxide to obtain zirconium silicate transparent crystals; carbon black |
| 04/16/1991 | US5008159 Porous compact of silicon carbide, carbide of metal, and carbon, infiltrating |
| 04/16/1991 | US5008151 Electronic circuit boards, heat resistant labels; adhesive layer with higher thermal decomposition initiation temperature |
| 04/16/1991 | US5008149 Composite oxide bonding layer |
| 04/16/1991 | US5008132 Process for preparing titanium nitride coated silicon carbide materials |
| 04/16/1991 | US5007962 Particles containing boron oxide dispersed in solution of methylchloroform and solvent |
| 04/16/1991 | US5007475 Method for forming metal matrix composite bodies containing three-dimensionally interconnected co-matrices and products produced thereby |
| 04/16/1991 | US5007474 Method of providing a gating means, and products produced thereby |
| 04/16/1991 | CA1283180C High voltage porcelain insulators |
| 04/11/1991 | DE3932573A1 Durable coloured concrete roofing tiles - consist of pigmented portland cement mixes with extruded or rolled on covering of similar cement mix plus specified type of polymer |
| 04/10/1991 | EP0421787A2 Method of coating a substrate with an ambient temperature-drying aqueous elastomeric composition |
| 04/10/1991 | EP0421680A1 Aluminium nitride circuit board |
| 04/10/1991 | EP0421567A1 Impregnating composition and method of use thereof |
| 04/10/1991 | EP0421467A2 Method of applying curtain glazing |
| 04/09/1991 | US5006491 Process for production of nitride ceramic shapes |
| 04/09/1991 | US5006410 Film comprising at least one unimolecular layer |
| 04/09/1991 | US5006392 After sintering; coating with resin while in mold |
| 04/09/1991 | US5006203 Nucleating diamond film on polysilicon substrate by ion beam deposition or hydrocarbon pyrolysis, etching to remove graphitically bonded materials |
| 04/09/1991 | US5006167 Gold powder, copper oxide powder, glass-based, lead-free inorganic powder, and resin |
| 04/09/1991 | US5005631 Method for forming a metal matrix composite body by an outside-in spontaneous infiltration process, and products produced thereby |
| 04/09/1991 | CA1282556C Concrete and aggregate benefaction technology |
| 04/07/1991 | CA2026081A1 Method for use of elastomeric coatings |
| 04/04/1991 | DE3931551A1 Copper and ceramic multilayer substrate prodn. - involving slitting of ceramic layers to avoid thermal stress damage |
| 04/03/1991 | EP0420781A2 Refractory paint for covering foundry moulds |
| 04/03/1991 | EP0420187A2 Method for forming a ceramic film |
| 04/03/1991 | EP0419986A2 Aqueous dispersions of organopolysiloxanes |
| 04/03/1991 | EP0419843A1 Process and means for making a relief decoration on ceramic surfaces |
| 04/03/1991 | EP0419686A1 Fluoropolymer coating and casting compositions and films derived therefrom |
| 04/03/1991 | EP0419682A1 Method of producing ceramic sinter having dense ceramic coating |
| 04/03/1991 | EP0419658A1 Concrete-protecting material |
| 04/03/1991 | EP0282516B1 Process for protecting surfaces of natural and artificial stone from colour applications |
| 04/03/1991 | CN1050414A Adhesive coating technology of metallic powder |
| 04/02/1991 | US5004714 Method of modifying ceramic composite bodies by a post-treatment process and articles produced thereby |
| 04/02/1991 | US5004573 Sintering zinc oxide and additives |
| 04/02/1991 | US5004544 Reaction bonded silicon nitride filtration membranes |
| 04/02/1991 | US5004036 Self-supporting |
| 04/02/1991 | US5004035 Diffusion of filler into metal matrix |
| 04/02/1991 | CA1282544C Fluorinated copolymers and their application to hydrophobic and oleophobic treatment of various substrates |
| 04/02/1991 | CA1282533C Organopolysilazane composition containing free radicals and curable by heat supply |
| 04/02/1991 | CA1282516C Water repellent for masonry |
| 03/27/1991 | EP0419212A2 Method for surface-treating the inner wall of a furnace, which is lined with ceramic fibers |
| 03/27/1991 | EP0419209A2 Boron nitride composition |
| 03/27/1991 | EP0418254A1 Treatment of surfaces and surface layers |
| 03/26/1991 | US5002928 Atomizing metal compounds onto hot substrate |
| 03/26/1991 | US5002910 Particulate composition for surface treatment of refractories |
| 03/26/1991 | US5002824 Substrates containing electrically conducting coatings and method of producing same |
| 03/26/1991 | US5002805 Process of surface treatment of refractories and coating |
| 03/26/1991 | US5002640 Process for the production of nitrides suitable for ceramic materials |
| 03/21/1991 | WO1991003326A1 Compositions and methods for cleaning hard surfaces |
| 03/20/1991 | EP0417881A1 Method of sealing permeable unconsolidated materials |
| 03/20/1991 | EP0417826A1 Process for making a pressure cast reinforced fibre component |
| 03/20/1991 | EP0417435A2 Refractory carbonaceous body |
| 03/20/1991 | EP0417434A1 Apparatus for synthetic diamond deposition including curved filaments and substrate cooling means |
| 03/20/1991 | EP0417198A1 Transparent conductive coatings |
| 03/20/1991 | EP0417164A1 Process for producing artificial stones, and their use. |
| 03/20/1991 | CN1012071B Etching solutions containing fluorinated cycloalkane sulfonate surfactand additives |
| 03/20/1991 | CN1012061B Alumina coated silicon carbide whisker-alumina composition |
| 03/20/1991 | CN1012060B Method for producing high strenth waterproof alumina cement |
| 03/20/1991 | CA2025582A1 Boron nitride coatings |
| 03/19/1991 | US5001110 Organometallic solutions for forming oxide superconducting films |
| 03/19/1991 | US5001091 Readily moldable or castable ceramic powders |
| 03/19/1991 | US5000249 Method of forming metal matrix composites by use of an immersion casting technique and product produced thereby |
| 03/19/1991 | US5000248 Method of modifying the properties of a metal matrix composite body |
| 03/19/1991 | US5000247 Method for forming metal matrix composite bodies with a dispersion casting technique and products produced thereby |
| 03/19/1991 | US5000246 Flotation process for the formation of metal matrix composite bodies |
| 03/19/1991 | US5000245 Inverse shape replication method for forming metal matrix composite bodies and products produced therefrom |
| 03/19/1991 | CA1281541C Installation for the chemical vapor infiltration of a refractory material other than carbon |
| 03/19/1991 | CA1281506C Lightweight aggregate having high resistance to water absorption and process for preparation thereof |
| 03/17/1991 | WO1991004305A1 Water-based water repellents |
| 03/15/1991 | WO1991004291A1 Compositions comprising a phenolic resin and cement |
| 03/15/1991 | CA2060317A1 Compositions comprising a phenolic resin and cement |
| 03/15/1991 | CA2022916A1 Method for encapsulating and barrier containment of asbestos fibers in existing building structures |
| 03/13/1991 | EP0416939A2 Method of producing a core for magnetic head |
| 03/13/1991 | EP0416938A2 Method of producing a core for magnetic head |
| 03/12/1991 | WO1991003551A1 Production of growth hormone in transgenic animal milk |
| 03/12/1991 | US4999249 Mixtures containing organosilicon compounds and their use for waterproofing and antimicrobial impregnation |
| 03/12/1991 | US4999218 (Meth)acrylate copolymer and aromatic ketone dispersion; concrete roof tiles |
| 03/12/1991 | US4999216 Vinyl ether and unsaturated polyester, photoinitiator |
| 03/12/1991 | CA2065866A1 Production of growth hormone in transgenic animal milk |
| 03/07/1991 | WO1991002703A1 Use of copolymers as additives for cement mortar mixtures or for coating of cured or partially cured concrete |
| 03/07/1991 | WO1991002658A1 Wet chemical etchant and method for etching high temperature superconductive films |
| 03/06/1991 | EP0415217A1 Thermal land bound machine comprising a heat resistant member, a heat resistant composite structure and a method of producing the heat resistant composite structure. |
| 03/06/1991 | CN1049647A Ceramics-metall composite |
| 03/05/1991 | US4997813 Oxides of thallium, copper, calciu, barium on magnesium oxide substrate |
| 03/05/1991 | US4997809 Critical temperature |
| 03/05/1991 | US4997522 Wet chemical etchant and method for etching high temperature superconductive films |
| 03/05/1991 | US4997482 Ceramics |
| 03/05/1991 | US4997468 Using carbon dioxide laser |
| 02/27/1991 | EP0414423A1 Waterproofing membrane |
| 02/27/1991 | EP0414244A2 Sealant mortar for spayed asbestos-cement coatings |
| 02/27/1991 | EP0413740A1 PROCESS FOR INCREASING THE RESISTANCE OF HIGH-T c? SUPERCONDUCTORS TO ENVIRONMENTAL INFLUENCES |
| 02/27/1991 | EP0413703A1 Ceramic-ceramic compounds, suitable for electrical applications |
| 02/27/1991 | EP0191823B1 Fire barrier plywoods |