| Patents for C04B 41 - After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone (26,090) |
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| 12/25/1991 | CN1057278A Rare-earth peach blossom pigment for ceramics |
| 12/25/1991 | CN1057251A Impregnating process of reaction-bonded silicon nitride body |
| 12/24/1991 | US5075404 Curable protective coating comprising a dicyclopentadienyl acrylate, an unsaturated hydroxy compound and a polyisocyanate adhesion; durability |
| 12/24/1991 | US5075284 Method of manufacturing superconducting ceramics and the products thereof |
| 12/24/1991 | US5075282 Printing method of forming oxide superconducting films on La2 Cu O.sub. |
| 12/24/1991 | US5075200 Process of forming superconductive wiring strip |
| 12/24/1991 | US5075160 Ceramic fiber reinforced filter |
| 12/24/1991 | US5075140 Increased depth of penetration |
| 12/24/1991 | US5075130 Doping with nitrogen, laser annealing |
| 12/24/1991 | US5075055 Process for producing a boron nitride crucible |
| 12/24/1991 | US5074912 Siloxane masonry water repellent emulsions |
| 12/19/1991 | DE4106066C1 Asbestos building element treatment appts. - applies mixture of wax and plastics to suppress dust |
| 12/19/1991 | DE4018940A1 Continuous roving deposition - has laser beams directed at spread material as sliver for penetration by reactive gas |
| 12/19/1991 | DE4018939A1 Laser-induced vapour coating of fibres for reinforced metal-matrix mat - using laser beam wavelength similar to dia. of fibre |
| 12/18/1991 | EP0461908A2 Process for preparing a transparent electrode and transparent electrode prepared by it |
| 12/18/1991 | EP0461782A2 Conversion of silica precursors to silica at low temperatures |
| 12/18/1991 | EP0461645A2 Process for preparing superconducting oxide thin films |
| 12/18/1991 | EP0461609A1 Method of forming metallized layer on aluminum nitride base material |
| 12/18/1991 | EP0461267A1 Method of manufacturing inorganic insulator |
| 12/17/1991 | USRE33773 Method of manufacturing a sag-resistant bonded particulate matter |
| 12/17/1991 | US5073461 Tribochemical method of producing an oxidized surface on a ceramic or metal-ceramic |
| 12/17/1991 | US5073454 Coating part of surface with intumescent material |
| 12/17/1991 | US5073432 Honeycomb structure and method of producing the same |
| 12/17/1991 | US5073405 Applying a tapered electrode on a porous ceramic support tube by masking a band inside the tube and drawing in electrode material from the outside of the tube by suction |
| 12/17/1991 | US5073209 Process embodiments for improving the electrical properties of conductors |
| 12/17/1991 | US5073195 Water soluble silane coupling agent and an alkyltrialkoxysilane; protective coatings for wood, masonry and construction materials |
| 12/17/1991 | US5073178 Ceramic filter for a dust-containing gas and method for its production |
| 12/17/1991 | US5072864 Carbon-containing wearable refractory parts |
| 12/12/1991 | WO1991019325A1 Optical emission spectroscopy to determine etch completion of indium tin oxide |
| 12/12/1991 | WO1991019317A1 Sog with moisture resistant protective capping layer |
| 12/12/1991 | WO1991019316A1 Moisture-free sog process |
| 12/12/1991 | WO1991018848A1 Method for producing a noise and/or heat protection covering, and covering thereby obtained |
| 12/12/1991 | WO1991018841A2 Coated refractory compositions and method for preparing the same |
| 12/12/1991 | DE4018340A1 Fibre coating for mfg. reinforcing components - has gas jets in vacuum deposition chamber against flow of material vapour for consistent cladding all round fibre |
| 12/11/1991 | EP0460987A1 Ceramic preforms, process for their production and applications thereof |
| 12/11/1991 | EP0460943A1 Boron nitride crucible and its production |
| 12/11/1991 | EP0460868A1 Amine catalysts for the low temperature conversion of silica precursors to silica |
| 12/11/1991 | EP0460306A1 Fabricating fracture-resistant diamond and diamond composite articles |
| 12/11/1991 | EP0460011A1 A process for the production of brick products with a finished surface, e.g. bricks |
| 12/10/1991 | US5072013 For, sealing concrete |
| 12/10/1991 | US5071695 Non-stick coating system with two thin undercoats, the first being polysiloxane |
| 12/10/1991 | US5071685 Ceramic articles, methods and apparatus for their manufacture |
| 12/10/1991 | US5071679 Process for producing composite materials with reinforcement in silicium carbide fibers and ceramic matrix |
| 12/10/1991 | US5071457 Composite for filtering hot gas and method of its manufacture |
| 12/10/1991 | US5071434 Biologically active surface ceramic and process for producing the same |
| 12/05/1991 | CA2042694A1 Conversion of silica precursors to silica at low temperatures |
| 12/05/1991 | CA2042689A1 Amine catalysts for the low temperature convension of silica precursors to silica |
| 12/04/1991 | EP0459865A1 Method of protecting ceramic surfaces |
| 12/04/1991 | EP0458865A1 Shaped bodies containing short inorganic fibers |
| 12/04/1991 | CN1056675A Ceramics preparative green bodies, process of production and use thereof |
| 12/04/1991 | CN1015005B Production of metallic structures on nonconductors |
| 12/03/1991 | USRE33759 Emulsifiers |
| 12/03/1991 | US5070116 Preceramic organosilicon-metal carbonyl polymers |
| 12/03/1991 | US5070072 Rare earth alkaline earth copper oxide superconductive coating s |
| 12/03/1991 | US5069888 Formation of protective hydrate coating |
| 12/03/1991 | US5069811 Compositions for the sulphation-removing cleaning of carbonatic lithoidal surfaces |
| 12/03/1991 | US5069764 Suppression of anode effect |
| 12/03/1991 | US5069724 Chlorine trifluoride; semiconductors |
| 12/01/1991 | CA2043421A1 Water resistant/repellant vermiculite articles and method of their manufacture |
| 12/01/1991 | CA2041418A1 Method of protecting ceramic surfaces |
| 11/30/1991 | WO1991018757A1 Method for applying electrical bus bars to a substrate |
| 11/30/1991 | CA2084068A1 Method for applying electrical bus bars to a substrate |
| 11/28/1991 | WO1991017839A1 Materials for chemical vapor deposition processes |
| 11/28/1991 | DE4116523A1 Alpha-alumina prodn. with narrow particle size distribution - by preparing beta-di:ketone complex, hydrolytic condensation to colloid and crystallisation |
| 11/28/1991 | DE4116522A1 Alpha-alumina-coated substrates for sepn. membranes etc. - by coating with colloidal solns. of hydrolysed aluminium beta-di:ketone complexes, and heating to at least 900 deg. C |
| 11/28/1991 | DE4016946A1 Large sintered ceramic component mfg. - by breaking sintered body into segments at most fragile zones by thermal shock to be reassembled with mechanical bonding |
| 11/27/1991 | EP0458441A2 Nickel-based substrate for ceramic superconductor |
| 11/27/1991 | EP0457885A1 Method of protecting embedded reinforcing members. |
| 11/27/1991 | EP0181372B1 Fire barrier i. coatings |
| 11/27/1991 | CN1056483A Hot spraying method for treatment of graphite electrode |
| 11/27/1991 | CN1014884B Method for coating china medicine stone in inner wall of water ceramic container |
| 11/27/1991 | CN1014881B Low-temp quick-acting, noiseless cracking agent |
| 11/26/1991 | US5068132 Method for applying a water repellant composition with a water carrier using a dispersing means |
| 11/25/1991 | CA2038656A1 Nickel-based substrate for ceramic superconductor |
| 11/24/1991 | CA2043029A1 Ceramic preforms, making process and applications thereof |
| 11/22/1991 | CA2040610A1 Apparatus for the removal of chloride from reinforced concrete structures |
| 11/21/1991 | EP0457618A2 Thermal shock-resistant silicon nitride sintered material and process for producing the same |
| 11/19/1991 | US5066622 Method of producing and modifying the properties of ceramic composite bodies |
| 11/19/1991 | US5066620 Conductive paste compositions and ceramic substrates |
| 11/19/1991 | US5066514 Method of forming optical waveguides by ion implantation |
| 11/19/1991 | US5066333 Filler for patterning of ceramics product and process for producing the same |
| 11/19/1991 | CA1292114C Fluid-permeable article and method for producing the same |
| 11/17/1991 | CA2017090A1 Coating composition |
| 11/14/1991 | WO1991017574A1 Etching indium tin oxide |
| 11/14/1991 | WO1991017279A1 Rigidized filler materials for metal matrix composites |
| 11/14/1991 | WO1991017278A1 Barrier materials for making metal matrix composites |
| 11/14/1991 | WO1991017277A1 Internal shaping techniques for metal matrix composites |
| 11/13/1991 | EP0456150A1 Solution and its use for the production of superconducting fibers and coatings |
| 11/13/1991 | EP0455866A1 Encapsulating process and agent |
| 11/13/1991 | EP0455714A1 A method of manufacturing a substrate for placement of electrical and/or electronic components. |
| 11/13/1991 | EP0220198B1 Preparing metal compounds by pyrolysis |
| 11/13/1991 | CN1056082A Technology of producing ceramic pattern |
| 11/13/1991 | CN1056078A Method of coating alumina particles with refractory meterial |
| 11/13/1991 | CN1014691B Method of making plates by using waste marble material |
| 11/12/1991 | US5064926 Water-dilutable fluorinated polyurethanes, process for preparing them and their use for the treatment of lithoidal materials and plasters |
| 11/12/1991 | US5064788 Production of ceramic and ceramic-metal composite articles with surface coatings |
| 11/12/1991 | US5064690 Method for coating surface of inactive granules |
| 11/12/1991 | US5064684 Casting metal carboxylate, forming ceramic by heating with imprinting tool |
| 11/12/1991 | US5063653 Method of producing a core for a magnetic head |
| 11/12/1991 | CA2030260A1 Encapsulating process and agent |