| Patents for C09C 1 - Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black (27,610) |
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| 06/26/1991 | EP0433727A1 Silica-core silicone-shell particles, emulsion containing the same dispersed therein, and process for producing the emulsion |
| 06/26/1991 | CN2079616U High temp. air preheater for producing carbon black |
| 06/19/1991 | EP0433031A1 Abrasive elements |
| 06/19/1991 | EP0363471A4 Dyed mineral pigments and applications |
| 06/18/1991 | US5024826 Silica particulate composition |
| 06/12/1991 | CN1052127A Compound titanium white powder |
| 06/12/1991 | CN1052102A Process for direct extraction of chrome yellow from treatment of cr 6+ waste liquid |
| 06/12/1991 | CN1052095A Process for preparing modified wollastonite powder |
| 06/12/1991 | CA2030403A1 Abrasive elements |
| 06/11/1991 | US5023065 Synthetic mica powder, manufacturing method thereof and cosmetics having the synthetic mica powder blended therein |
| 06/11/1991 | US5022924 Finely divided silica mixed with faolin clays before calcining |
| 06/11/1991 | US5022923 Mic flakes coated with metal oxide layer and a top layer of tin oxide and/or cerium oxide; decorations |
| 06/05/1991 | EP0430888A1 Process for preparing bismuth vanadate pigments and bismuth vanadate pigments of high tinting strength |
| 06/05/1991 | EP0430424A2 Film-forming compositions |
| 06/05/1991 | EP0429920A1 Process for the preparation of TiO2 pigments |
| 06/05/1991 | EP0429707A1 Process for the preparation of basic calcium carbonate, basic calcium carbonate therefrom and its use |
| 06/05/1991 | EP0362345A4 Coloured stearates |
| 06/04/1991 | US5021226 Hydrothermal reaction of an aqueous solution of magnesium sulfate and magnesium hydroxides or oxide; removings/spheres; dehydrating and delletizing |
| 06/04/1991 | US5021092 Heating mixture containing vanadium oxide and ammonium vanadate to mineralize |
| 05/30/1991 | WO1991007468A1 A process for improving the viscosity and filtration rate of a water and clay slurry |
| 05/29/1991 | CN1051709A Silica sols, process for production of silica sols and use of sols |
| 05/29/1991 | CN1051691A Chemically bonded superabrasives grit |
| 05/28/1991 | US5019426 High Temperature Polymerizable Liquid Resin |
| 05/28/1991 | US5019169 Gray-black encapsulated pigments and method for their preparation |
| 05/22/1991 | EP0427817A1 Finely powdered magnesium hydroxide and method for preparing it. |
| 05/22/1991 | EP0290602B1 Process for surface treating clay minerals and resultant products |
| 05/21/1991 | US5017638 Gloss, automobiles, ceramic sacly substrate, inorganic film |
| 05/21/1991 | US5017231 Process for preparing coated pigments |
| 05/18/1991 | CA2028346A1 Film-forming compositions |
| 05/16/1991 | WO1991006596A1 WEATHERPROOF HARD PVC MOULDINGS, THEIR MANUFACTURE, TiO2- CONTAINING PIGMENT COMBINATIONS AND THEIR USE TO PIGMENT HARD PVC MOULDINGS |
| 05/14/1991 | US5015669 Vinyl chloride polymer with vinyl chloride, a plasticizer, stabilizer and filler |
| 05/14/1991 | US5015295 Grinding limestone after crushing |
| 05/08/1991 | EP0426578A1 Surface-treated ceric oxides and silicone-elastomers with improved flame-resistance containing them |
| 05/08/1991 | EP0426255A2 Organophilic clay and process for preparing it |
| 05/08/1991 | EP0426196A1 Surface modified fillers |
| 05/07/1991 | US5013770 Coated With Silylalkyl-Or Silylaryl-Urethanes Or Ureas |
| 05/07/1991 | US5013603 Clear images |
| 05/07/1991 | US5013585 Method for the preparation of surface-modified silica particles |
| 05/07/1991 | US5013365 Iron oxide black pigments, processes for their preparation and their use |
| 05/07/1991 | US5013346 Metal, alloy, glass |
| 05/07/1991 | CA1283991C Synthetic resin composition having reduced corrosion- causing tendency and coloration |
| 05/04/1991 | CA2029211A1 Surface treated ceric oxides; silicone clastomers with improved flame resistance, containing said ceric oxides |
| 05/02/1991 | WO1991005734A1 Process for the conversion of carbonaceous feedstocks to particulate carbon and methanol |
| 05/02/1991 | EP0424896A1 Dustless time pigment or dyestuff granulate |
| 05/02/1991 | EP0424572A1 Weatherproof rigid PVC moulded article, its preparation, and use of a pigment containing Ti02 for the pigmentation of rigid PVC moulded articles |
| 05/01/1991 | CN1051049A Electrically conductive pigmentary composites |
| 05/01/1991 | CN1051027A Method for producing particulate titanium dioxide |
| 04/30/1991 | US5011862 Coating media containing low density composite opacifiers |
| 04/30/1991 | US5011690 Mixing aqueous stabilized silica sol containing dispersed material and aqueous polymer solution to form two-phase system, condensing to aggregate silica drops into spheres containing included material |
| 04/30/1991 | US5011670 Integrated reformer process for the production of carbon black |
| 04/30/1991 | US5011534 Degritting, spray drying, pulverizing, roasting and repulverizing |
| 04/30/1991 | US5011533 Treated with a phosphite or a phosphobetaine; waterbase coating |
| 04/24/1991 | EP0424126A1 Zinc selenide based pigment material |
| 04/24/1991 | EP0424058A1 Method for producing particulate titanium oxides |
| 04/24/1991 | EP0424048A2 Electrically conductive pigmentary composites |
| 04/24/1991 | CN1050889A Structural aggregate pigments |
| 04/24/1991 | CN1050888A Structural aggregate pigments |
| 04/23/1991 | US5009879 Opacifier for vitreous enamels |
| 04/23/1991 | US5009874 Hydrophobic precipitated silica granules |
| 04/23/1991 | US5009854 Axial reactor with coaxial oil injection |
| 04/23/1991 | US5009712 Brown potassium ferrites |
| 04/23/1991 | US5009711 Golden color luster pigments |
| 04/23/1991 | US5009676 Sintered sol gel alumina abrasive filaments |
| 04/23/1991 | CA1283254C Heat resistant yellow pigments, processes for their preparation and their use |
| 04/23/1991 | CA1283253C Titanium-mica composite material |
| 04/21/1991 | CA2028027A1 Material |
| 04/17/1991 | EP0422756A1 Method to improve flowability of alkaline phenolic resin coated sand |
| 04/17/1991 | EP0422202A1 Opacifying kaolin pigments and process for making same |
| 04/17/1991 | CN2075198U Improved structure of carbon black furnace body |
| 04/17/1991 | CA2019387A1 Method for producing particulate titanium oxides |
| 04/16/1991 | US5008305 Vinyl siloxane and phenyl siloxane compounds |
| 04/16/1991 | US5008223 Calcining silicon dioxide and zirconium oxide to obtain zirconium silicate transparent crystals; carbon black |
| 04/16/1991 | US5007964 Calcium carbonate, calcium carbonate pigment, process for preparing same, coating composition for information recording paper and information recording paper |
| 04/16/1991 | US5007963 Novel process for the preparation of lead molybdate pigments and novel lead molybdate pigments |
| 04/16/1991 | CA2019386A1 Electrically conductive pigmentary composites |
| 04/13/1991 | WO1991005745A1 Process for making structural aggregate pigments |
| 04/13/1991 | WO1991005604A1 Structural aggregate pigments |
| 04/13/1991 | CA2067376A1 Process for making structural aggregated pigments |
| 04/13/1991 | CA2067141A1 Structural aggregate pigments |
| 04/10/1991 | EP0421213A2 Chromium containing magnetic iron oxide pigments process for their fabrication and their application |
| 04/09/1991 | US5006574 Cationcally dispersed slurries of calcined kaolin clay |
| 04/09/1991 | US5006175 High infra red reflecting brown rutile pigment compositions |
| 04/09/1991 | CA1282649C Process for preparing rutile-coated mica pigments |
| 04/09/1991 | CA1282575C Acetylene black |
| 04/03/1991 | EP0419964A2 Red iron oxide or brown iron oxide microbeads, their preparation and their use |
| 04/03/1991 | CN1050393A V-zr series pigments |
| 04/02/1991 | US5004504 Transparent iron oxide pigments |
| 03/28/1991 | CA2026120A1 Iron oxide red and iron oxide brown microgranulates, a process for their preparation and their use |
| 03/27/1991 | EP0418683A2 Mixed phases containing rutile pigment microbeads, process for manufacturing them and their use |
| 03/27/1991 | EP0418669A2 Greyish-black occlusion pigments |
| 03/26/1991 | US5002892 Titration; Standardizing Product Uniformity |
| 03/26/1991 | US5002609 Iron oxide black pigment granules, processes for their preparation and their use |
| 03/26/1991 | US5002608 Titanium dioxide coated micaceous iron oxide pigments and method for producing the same |
| 03/21/1991 | WO1991004293A1 Colored metallic pigments |
| 03/21/1991 | WO1991003228A1 Polymer supported cosmetic products and methods |
| 03/21/1991 | CA2066628A1 Colored metallic pigments |
| 03/20/1991 | EP0417798A1 Process for the preparation of short prismatic aluminium hydroxide and its use as filler or pigment |
| 03/20/1991 | EP0417567A2 Process for manufacturing hematite pigmentary platelets |
| 03/20/1991 | EP0417544A2 Process for preparing inorganic oxide pigments or ceramic oxide pigments |
| 03/20/1991 | CN1050033A Platelet-like surface-modified substrates |