| Patents for C09C 1 - Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black (27,610) |
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| 01/20/1992 | WO1992001518A1 Alumina trihydrate, methods of manufacture, and applications |
| 01/17/1992 | WO1992001646A2 Alpha phase seeding of transition alumina using chromium oxide-based nucleating agents |
| 01/17/1992 | CA2086552A1 Alpha phase seeding of transition alumina using chromium oxide-based nucleating agents |
| 01/17/1992 | CA2047137A1 Mineral or organic lamellar particle based product containing a melanic pigment, its preparation process and its use in cosmetics |
| 01/15/1992 | EP0465805A2 Surface-modified micaceous particulates having improved dispersibility in aqueous media |
| 01/14/1992 | US5081085 Synthetic alkali metal aluminosilicates and use as catalysts |
| 01/14/1992 | US5080718 Inorganic pigments of the empirical formula Ax By Cz |
| 01/09/1992 | WO1992000355A1 Pigments based on double-layer hydroxides, process for manufacturing the pigments, and their use |
| 01/08/1992 | EP0465075A1 Cobalt titanate particles and process for producing the same |
| 01/07/1992 | US5078793 Spray drying method for preparing kaolin as a pigment extender |
| 01/07/1992 | US5078753 Coated abrasive containing erodable agglomerates |
| 01/02/1992 | DE4020272A1 Pigmente auf basis von doppelschicht-hydroxiden, verfahren zu deren herstellung sowie deren verwendung Pigments based on double-layer hydroxides, processes for their preparation and their use |
| 12/31/1991 | US5077323 Method to improve flowability of alkaline phenolic resin coated sand |
| 12/31/1991 | US5077088 Coating with acrylic polymer and polyvinyl alcohol; curing using oxalic acid as curing agent |
| 12/31/1991 | US5076889 Synthetic alkali metal alumino-silicates compositions and their methods of preparation |
| 12/31/1991 | US5076849 Acid-treated slica with base solubility; coating that is base insoluble; extraction |
| 12/31/1991 | US5076848 Process for the preparation of iron yellow pigments |
| 12/26/1991 | WO1991019686A1 Defined and delaminated kaolin product |
| 12/26/1991 | WO1991019672A1 Reinforced precipitated silica |
| 12/25/1991 | CN1057278A Rare-earth peach blossom pigment for ceramics |
| 12/25/1991 | CN1057277A Production process for iron oxide red pigment |
| 12/25/1991 | CN1015165B Process for producing barium sulfate having chemically reactive surface |
| 12/24/1991 | US5075459 Organosilicon compound |
| 12/24/1991 | US5075368 Synthetic alkali metal aluminosilicates and use in paints |
| 12/24/1991 | US5075093 Calcium carbonate in a platelet-like particulate form and a method for the preparation thereof |
| 12/24/1991 | US5074917 Novel oxide/dye pigmentary colorants |
| 12/24/1991 | US5074475 Method for improving bulk density and flowability of calcined kaolin clay products |
| 12/18/1991 | EP0461768A1 Defined and delaminated kaolin product |
| 12/18/1991 | EP0461130A1 Sunscreen compositions. |
| 12/18/1991 | EP0309462B1 High solids blended kaolin clay slurry |
| 12/18/1991 | EP0256417B1 New coloured and colourless thin fillerpigment and the method for preparation thereof |
| 12/17/1991 | CA1293239C Synthetic alkali metal alumino-silicates, compositions and their methods of preparation |
| 12/10/1991 | US5071676 Electroconductive particles and method for adjusting the isoelectric point thereof |
| 12/10/1991 | CA1292856C Process for refining kaolin |
| 12/04/1991 | EP0459552A1 Electroconductive barium sulphate and process for manufacturing the same |
| 12/03/1991 | US5069963 Magnetic recording medium with a back coat layer of nitrocellulose and polyurethane binder resins and which contains carbon black and titanium dioxide particles |
| 12/03/1991 | US5069892 Carbon black for tire tread |
| 12/03/1991 | US5069882 Reduction of coke production and erosion of reactor |
| 11/30/1991 | CA2042155A1 Surface-modified micaceous particulates having improved dispersibility in aqueous media |
| 11/27/1991 | EP0458141A1 Bluish green pigment and method of preparing the same |
| 11/27/1991 | CN1056539A Process for coating of electrically conductive substrates and cathodically depositable aqueous electrocoating paint |
| 11/27/1991 | CN1056513A Heat-insulating waterproof powder and productive method thereof |
| 11/27/1991 | CN1014900B Dual-purpose reaction furnace for producing soft/hard carbon black and corresponding process thereof |
| 11/27/1991 | CA2043171A1 Electrically conductive barium sulfate and process of producing it |
| 11/26/1991 | US5068276 Chemically aggregated mineral pigments |
| 11/26/1991 | US5068150 Copper powder for electroconductive paints and electroconductive paint compositions |
| 11/26/1991 | US5068056 Aqueous dispersions of acicular titanium dioxide |
| 11/21/1991 | DE4015703A1 Verfahren zum beschichten elektrisch leitfaehiger substrate und kathodisch abscheidbarer waessriger elektrotauchlack A method for coating electrically conductive substrates and cathodic electrodeposition paint aqueous |
| 11/19/1991 | US5066530 Ultraviolet Sunscreen |
| 11/19/1991 | US5066486 Method for preparing cosmetic products and the products obtained thereby |
| 11/19/1991 | US5066334 Fungicidal and corrosion inhibiting paint pigments |
| 11/17/1991 | WO1991018063A1 Process for coating electrically conductive substrates and aqueous cathodically precipitable electro-dipcoat enamel |
| 11/14/1991 | WO1991017217A1 Passivated aqueous metal pigment compositions and process for making same |
| 11/14/1991 | WO1991017128A1 High opacity defined kaolin product and method of producing same |
| 11/14/1991 | WO1991017114A1 Carbon black and rubber composition containing same |
| 11/14/1991 | DE4014681A1 New cubic bismuth sesqui:oxide superstructure phase contg. vanadium - prepd. from bismuth vanadate and aq. alkali, used as ion conductor or in pigment |
| 11/14/1991 | DE4014523A1 Corrosion inhibiting pigment based on beta-tri:calcium phosphate - giving excellent result with non-toxic, environmentally friendly pigment compatible with binder |
| 11/13/1991 | EP0456413A2 Calcium carbonate pigment for heat-sensitive recording paper, process for preparing same, coating composition for heat-sensitive recording paper and heat-sensitive recording paper |
| 11/13/1991 | EP0456363A2 High opacity defined kaolin product and method for producing same |
| 11/13/1991 | EP0456050A1 Process for producing chrome yellow and molybdenum orange pigments |
| 11/13/1991 | EP0455947A1 Process for granulating resorcinol/silica mixtures, the granules so obtained and their use |
| 11/13/1991 | EP0455933A2 Coated colouring spinel pigments, process for manufacturing them and their use |
| 11/13/1991 | CN1056078A Method of coating alumina particles with refractory meterial |
| 11/12/1991 | US5064690 Method for coating surface of inactive granules |
| 11/12/1991 | CA1291849C Process of dyeing concrete |
| 11/08/1991 | CA2041864A1 Preparation of chrome yellow and molybdate orange pigments |
| 11/05/1991 | US5063258 Coating compositions containing molybdenum disulfide |
| 11/05/1991 | US5062886 Process for producing metal powder having controlled particle size distribution for metallic pigments |
| 11/03/1991 | WO1991017225A1 Coated abrasive alumina particles, manufacture and use |
| 11/03/1991 | CA2080598A1 Method of coating alumina particles with refractory material, abrasive particles made by the method and abrasive products containing the same |
| 10/31/1991 | WO1991016464A1 Treatment of particulate materials with reticulated cellulose |
| 10/30/1991 | EP0345267B1 Improved titanium dioxide pigments |
| 10/30/1991 | CN1014524B Process for producing carbon black |
| 10/29/1991 | US5061473 Titanium dioxide, a process and its production |
| 10/29/1991 | US5061461 Separation of fine particle size fractions; upgrading pigment for papermaking |
| 10/29/1991 | US5061317 Based on metal oxide coated mica particles |
| 10/29/1991 | CA1291318C Process for the preparation of isometric magnetic iron oxide pigments |
| 10/29/1991 | CA1291317C Process for the preparation of bright, color-pure iron oxide red pigments |
| 10/27/1991 | CA2041072A1 Method of granulating mixtures of resorcinol and silicic acid, granulates obtained thereby and use thereof |
| 10/23/1991 | EP0453261A1 Aging-resistant iron oxide coloring agent for resins |
| 10/23/1991 | EP0453260A1 The treatment of mineral surfaces |
| 10/23/1991 | EP0452711A2 Surface treated metal oxides and method of their preparation |
| 10/23/1991 | EP0300047B1 Synthetic mica powder, process for its production, and cosmetics containing said synthetic mica powder |
| 10/23/1991 | CN1055547A Red inorganic pigment and its production |
| 10/23/1991 | CN1055526A Refined kaolin calcined from kaolinite |
| 10/23/1991 | CN1014413B Production of carbon black |
| 10/22/1991 | US5059408 Carbon black for tire tread |
| 10/22/1991 | US5059250 Red iron oxide pigments with improved coloring properties |
| 10/22/1991 | US5059248 Stable, fluid, aqueous pigment dispersions for use in film coating tablets and the like |
| 10/22/1991 | US5059245 Ink incorporating optically variable thin film flakes |
| 10/20/1991 | CA2040363A1 Surface-treated metal oxides and process for producing same |
| 10/19/1991 | CA2040560A1 Process for the treatment of mineral surfaces |
| 10/17/1991 | DE4011897A1 New doped mixed valency iron phosphate complex cpds. - useful as pigment in corrosion inhibiting paint or lacquer, and are prepd. by hydrothermal reaction |
| 10/16/1991 | EP0451785A1 Aluminum pigment and process for production thereof |
| 10/15/1991 | US5057467 Processing additives for clay production |
| 10/15/1991 | US5057189 Pyrolysis of tires; recovering char, steel, fuel gas and oil |
| 10/15/1991 | US5057156 Metallic pigment composition and water borne coating composition thereof |
| 10/15/1991 | US5057151 Water repellent |
| 10/09/1991 | EP0450945A1 Pigment and process for producing the same |
| 10/09/1991 | EP0450805A2 Process for coating metal oxide pigments and pigments obtained |