| Patents for C09C 1 - Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black (27,610) |
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| 10/09/1991 | EP0449888A1 Chemically inert pigmentary zinc oxides. |
| 10/08/1991 | US5055136 Heat-stable iron oxide black pigments, processes for their production and their use |
| 10/05/1991 | WO1991015425A1 Easily dispersible carbon blacks |
| 10/03/1991 | WO1991014741A1 Plastic pigment and production thereof |
| 10/02/1991 | EP0449016A1 Nacre-effect pigments coated with organic dyes |
| 10/02/1991 | EP0448946A2 Electrically conductive stannic oxide |
| 10/02/1991 | CN1014151B Process and equipment for prodn. of soft carbon black |
| 10/02/1991 | CN1014150B Method and apparatus for carbon black prodn. |
| 10/01/1991 | US5053278 Carbonaceous granular heat insulator and process for preparing the same |
| 09/19/1991 | WO1991013944A1 Improved treadwear/hysteresis carbon blacks |
| 09/18/1991 | EP0446986A1 Process for producing light and moisture resistant metal oxide-coated mica pigments |
| 09/18/1991 | EP0446689A1 Coloured pigments which are stable in glaze |
| 09/18/1991 | EP0446290A1 Titanium dioxide sunscreens. |
| 09/17/1991 | US5049595 Plastic concentrate for photographic support material coatings |
| 09/17/1991 | US5049369 Pyrolysis |
| 09/17/1991 | US5049195 Color pure iron oxide pigments, a process for their preparation and their use |
| 09/17/1991 | US5049193 Heat stable iron oxide pigments of upsilon-Fe2 O3 structure, a process for their production and their use |
| 09/11/1991 | EP0445952A1 Acid-stabilized calcium carbonate, process for its production and method for its use in the manufacture of acidic paper |
| 09/11/1991 | CN1013868B Catalytic acidation technology of sepiolite and bentonite |
| 09/10/1991 | US5047375 Method for producing high opacifying kaolin pigment |
| 09/04/1991 | EP0444798A2 Method for the preparation of titanium dioxide |
| 09/04/1991 | EP0444574A1 Organic-inorganic composites and method of making them |
| 09/03/1991 | US5045114 Milling resinous binder and aluminum particles |
| 08/29/1991 | DE4006044A1 Halide-doped tin (IV) oxide - used as electroconductive filler or pigment in e.g. plastics, lacquers, paints and paper, etc. |
| 08/28/1991 | EP0443981A1 Bismuth vanadate modified pigments in monoclinic crystalline form |
| 08/28/1991 | CN1054089A Process for production of fillers modified with organosilicon compounds, fillers thus modified and their use |
| 08/28/1991 | CN1054088A Producing natural iron red from hematite ore |
| 08/27/1991 | US5043017 Acid-stabilized calcium carbonate, process for its production and method for its use in the manufacture of acidic paper |
| 08/27/1991 | US5043016 Mixed iron, manganese oxide |
| 08/22/1991 | DE4105319A1 Micro-glass beads for reflective markings - have coating contg. particles of metal cpd. with specified refractive index imparting coloured outer surface |
| 08/22/1991 | DE4103559A1 Nickel titanate powder prodn. by wet process - to obtain ultra-fine yellow-green cosmetic powder |
| 08/22/1991 | DE4004781A1 Modifying surface of natural or synthetic oxidic or silicate fillers - using organo:silicon cpds. useful in vulcanisable natural rubber mixts. to improve rubber properties |
| 08/22/1991 | CA2035692A1 Coated glass microbeads and pigment for synthetic material |
| 08/21/1991 | WO1991013120A1 Doped zinc oxide-based pigment |
| 08/21/1991 | EP0442746A1 Calcined kaolin clay filler pigment for paper |
| 08/21/1991 | EP0442325A1 Si02-Flatting agent, process for its production and its use |
| 08/21/1991 | EP0442143A1 Method of preparing fillers which are modified by organosilicon compounds, the products thus obtained and their use |
| 08/20/1991 | US5041162 Process for producing durable titanium dioxide pigment |
| 08/15/1991 | CA2035675A1 Sio2-flatting agent, process for its production and its use |
| 08/15/1991 | CA2035117A1 Calcined kaolin clay filler pigment for enhancing opacity and printing properties of newsprint and mechanical papers |
| 08/14/1991 | EP0441640A2 Sintered aluminous abrasive grains and method of producing the same |
| 08/14/1991 | EP0441101A1 Phosphate modified bismuth vanadate pigments |
| 08/14/1991 | EP0440958A1 Process for preparing black manganese-iron pigment |
| 08/14/1991 | EP0440616A1 Inhibitive treatment for aluminum pigments. |
| 08/13/1991 | US5039509 Process for the production of magnesium oxide |
| 08/13/1991 | CA1287472C Method for producing a flaky material |
| 08/10/1991 | CA2036051A1 Sintered aluminous abrasive and method of producing same |
| 08/08/1991 | DE4002943A1 Stable bismuth chromium zirconium oxide mix phase pigment for lacquer - or plastics and prepd. by calcining co-precipitate or oxide mixt. or precursor |
| 08/07/1991 | WO1991012202A1 Carbon black exhibitng superior treadwear/hysteresis performance |
| 08/07/1991 | EP0439695A2 Brown occlusion pigments and process for manufacturing them |
| 08/07/1991 | CN1053580A Chromatically colorable fluororesin-coated material |
| 08/07/1991 | CA2073871A1 Carbon black exhibiting superior treadwear/hysteresis performance |
| 08/06/1991 | US5037628 Method for reclaiming carbonaceous material from a waste material |
| 08/06/1991 | US5037508 Aluminum chlorohydrate or hydrotalcite treated kaolin clays for pitch control |
| 08/06/1991 | US5037478 Used for coating, inks |
| 08/06/1991 | US5037477 Heating alkaline slurry of calcium carbonate particle, zinc compound and silica containing substance |
| 08/06/1991 | US5037476 Process for improving photostability of titanium dioxide pigments in binder compositions without decreasing reflectivity |
| 08/06/1991 | US5037475 Pigments adsorbed on metallic flakes via carboxylic acid polymers |
| 08/06/1991 | CA1287202C Process for surface treating clay minerals and resultant products |
| 08/06/1991 | CA1287201C Aluminium pigment composition |
| 08/04/1991 | CA2035528A1 Black manganese/iron oxide pigment, a process for its production and its use |
| 08/01/1991 | DE4002564A1 Brown to grey zirconium silicate inclusion pigment - contg. iron manganese mix oxide as discrete phase, useful in ceramic e.g. glaze |
| 07/31/1991 | EP0439373A1 Low density agglomerate utilizing a carbohydrate binder |
| 07/31/1991 | EP0439233A1 Use of a plastic dispersion as coating for inorganic and organic particles |
| 07/31/1991 | EP0439107A1 Laminar graphite containing pigment composition |
| 07/31/1991 | CN2081794U Pressure dewatering apparatus for carbon black |
| 07/30/1991 | US5035873 Synthetic alkali metal alumino-silicates compositions and their methods of preparation |
| 07/30/1991 | US5035771 Etching to increase surface area, embedding in metal powder, reacting with hydrogen gas stream |
| 07/30/1991 | US5035748 Storage-stable inorganic pigments containing specific polyorganosiloxanes with long chain aryl and/or alkyl groups |
| 07/30/1991 | US5035746 Calcining zirconium, silicon, iron and titanium oxides to form crystals of iron titanates in zirconiu silicate as a discrete phase |
| 07/30/1991 | CA1286941C Treatment of titanium dioxide and other pigments to improve dispersibility |
| 07/25/1991 | WO1991010618A1 Carbon blacks imparting superior treadwear/hysteresis performance and process for producing carbon blacks |
| 07/23/1991 | US5034442 Flame retardant and flame retardant resin composition |
| 07/23/1991 | US5034430 Molding material of a thermosetting or thermoplastic polymer and molybdenum disulfide with a pigment |
| 07/23/1991 | US5034207 Finely, divided, precipitated silica with high structure, method of its preparation and use |
| 07/23/1991 | CA2034608A1 Laminer graphite containing pigment composition |
| 07/16/1991 | US5032547 Mica, polymer, intercalation, ion exchange |
| 07/16/1991 | US5032546 Ion exchanged organic-inorganic composites |
| 07/16/1991 | US5032425 Treatment process |
| 07/16/1991 | US5032390 Zinc oxide |
| 07/16/1991 | US5032377 Ring-shaped particles, dustless, free flowing |
| 07/16/1991 | US5032180 Process for the production of iron oxide yellow pigments |
| 07/10/1991 | EP0436389A1 Pneumatic tires |
| 07/09/1991 | US5030445 Kaoling coated with titanium dioxide; sunscreen agents |
| 07/09/1991 | US5030439 Reacting titanium tetrahalide with sulfuric acid to produce titanyl sulfate which is hydrolyzed, calcining |
| 07/09/1991 | US5030433 Agglomeration, heating to volatilize impurities |
| 07/09/1991 | US5030285 Corrosion inhibiting pigment and a process for the manufacturing thereof |
| 07/09/1991 | US5030284 Binders |
| 07/09/1991 | CA1285928C Process for producing amorphous aluminosilicates |
| 07/04/1991 | DE3943339A1 Desulphurising exhaust gas plaster recovery - uses flotation of output from hydro cyclone to separate discoloured particles and leave bright plaster for recycling |
| 07/03/1991 | EP0435513A1 Silica particles and process for producing the same |
| 07/02/1991 | US5028639 Binder, aluminum pigment passivated with solution of chromic acid, glycol or glycol ether |
| 07/02/1991 | US5028482 Latex coated inorganic fillers and process for preparing same |
| 07/02/1991 | US5028481 Electrically conductive pigmentary composites |
| 07/02/1991 | US5028401 Vertically coupled cylindrical modules for aerosol reactions |
| 07/02/1991 | US5028268 Method for improving the rheology of calcined kaolin clay products |
| 07/02/1991 | CA1285677C Treatment of clays with cationic polymers to prepare high bulking pigments |
| 07/02/1991 | CA1285433C Process and apparatus for coating particles with fine powder |
| 06/26/1991 | EP0434391A1 Fungicidal and corrosion inhibiting paint pigments |
| 06/26/1991 | EP0433872A2 Chromatically colorable fluororesin-coated material |