| Patents for C09C 1 - Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black (27,610) |
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| 03/20/1991 | CN1050032A 碳黑工艺控制系统 Carbon black process control system |
| 03/20/1991 | CN1050031A Technology of preparation of white barium-titanium pigment |
| 03/19/1991 | US5001183 Method of hydrophobing silica |
| 03/19/1991 | US5000871 Prepared by wet grinding glycol slurry containing calcium carbonate surface treated with copolymer of unsaturated acid or salt and ester |
| 03/19/1991 | US5000791 Process for the preparation of an acid-resistant coating on filler particles |
| 03/19/1991 | CA1281744C Fluorinated carbons and methods of manufacture |
| 03/13/1991 | EP0416648A2 Method of micaceous iron oxide (mio) pigment production |
| 03/13/1991 | EP0416548A2 Magnetic recording material |
| 03/13/1991 | EP0416403A1 Magnetic iron-oxide pigment, production method and application |
| 03/13/1991 | EP0416395A2 Platy, surface-modified substrate |
| 03/13/1991 | EP0205588B1 Process for preparing metal-coated hollow microspheres |
| 03/13/1991 | CN1049909A Gravimetric determination of ioding number of carbon black |
| 03/13/1991 | CN1049856A Chemical deliming method of natural graphite and coal |
| 03/12/1991 | US4999055 Coated with organic acid |
| 03/12/1991 | CA1281152C Water-resisting pearlescent pigments and method for preparation thereof |
| 03/10/1991 | CA2024864A1 Preparation of inorganic oxide pigments (ceramics) |
| 03/06/1991 | EP0415478A2 Electroconductive mixed phases containing rutile pigment, process for its preparation and its use |
| 03/06/1991 | EP0415477A2 Electroconductive zinc sulfide powder and process for manufacturing the same and its application |
| 03/06/1991 | CN1049622A Surface-treating process for conductive copper powder |
| 03/06/1991 | CA2024486A1 Platelet-like, surface-modified substrates |
| 03/05/1991 | US4997871 Fibrous magnesium oxysulfate granular form and thermoplastic resin composition containing the magnesium oxysulfate |
| 03/05/1991 | US4997870 Spray drying |
| 03/02/1991 | CA2023526A1 Electrically conductive mixed-phase rutile pigment, process of producing the same and use thereof |
| 03/02/1991 | CA2022743A1 Electrically conductive zinc sulfide powder and process of producing the same and use thereof |
| 03/01/1991 | CA2022937A1 Gravimetric determination of the iodine number of carbon black |
| 02/27/1991 | EP0414049A1 Pigments having an effect of preventing ultraviolet rays and infrared rays |
| 02/27/1991 | CN1049486A Method for separating ultrafine iron oxide from waste mother liquor from rutile production by dilute hydrochloric acid |
| 02/26/1991 | US4995999 Method of producing magnetic carbon black |
| 02/26/1991 | CA1280745C Regulation of the flow-rate of carbon black into a pelletizer |
| 02/21/1991 | WO1991002033A1 Stable, fluid, aqueous pigment dispersions |
| 02/21/1991 | DE3926870A1 Bismuth vanadate or mixed pigment coated with hardly soluble iron cpd. - to minimise photochromic effect, prodn. and use in paint, printing ink or plastics |
| 02/13/1991 | EP0412686A1 Corrosion inhibiting pigment |
| 02/13/1991 | EP0412265A1 Process and apparatus for producing carbon black |
| 02/13/1991 | CN1049169A Producing method of iron black |
| 02/12/1991 | US4992143 Continuous process for the separation of a partially water soluble component from a slurry |
| 02/12/1991 | CA1279962C Flaky coloured pigments |
| 02/09/1991 | CA2018830A1 Process and apparatus for producing carbon black |
| 02/07/1991 | WO1991001349A1 Process for the production of a filler for pvc moulding materials, the use of the filler produced by this process and pvc moulding materials containing the filler produced by this process |
| 02/06/1991 | EP0412027A1 Use in the aqueous pigment dispersions of calcium carbonate of a polycarboxylic agent with phosphate or phosphonate groups inhibiting the knockdown effect caused by the introduction of an electrolyte in concentrated form |
| 02/06/1991 | EP0412025A1 Method of entrapping and releasing an active material and micro-capsules obtained thereby |
| 02/06/1991 | EP0411160A1 Method of manufacturing carbon black |
| 02/05/1991 | WO1991001798A1 Process for producing organised powders by spraying from at least two sets of particles, and organised powders thus obtained |
| 02/05/1991 | US4990189 Iron oxide pigments, a process for their preparation and their use |
| 02/05/1991 | US4989794 Milling in liquid suspension classification, recycling |
| 02/05/1991 | CA2047218A1 Process for producing organized powders by spraying from at least two sets of particles, and organized powders thus obtained |
| 02/05/1991 | CA2020584A1 Application of calcium carbonate, to pigmentary aqueous suspensions, of a phosphated or phosphonated polycarboxylic agent inhibiting the knockdown action occurring when introducing in concentrated electrolyte |
| 01/30/1991 | EP0410264A1 Cross-linkable surface-modified micaceous particulates and compositions containing the same |
| 01/30/1991 | EP0409991A1 Abrasive grain and method of producing same |
| 01/30/1991 | EP0409879A1 Process for producing durable titanium dioxide pigments. |
| 01/29/1991 | US4988757 Rubbers containing alkali metal aluminum silicates reinforcement for paper, paints, plastics, catalyst supports, oil absorbers |
| 01/29/1991 | US4988561 Paper coated with synthetic alkali metal aluminosilicates |
| 01/29/1991 | US4988493 Process for producing improved carbon blacks |
| 01/28/1991 | CA2020493A1 Cross-linkable surface-modified micaceous particulates and coating compositions containing the same |
| 01/24/1991 | DE3923934A1 Filler for PVC moulding materials - by heating gypsum with dilute dehydrating acid, neutralising with alkali- or alkaline earth-carbonate, removing water, and carbon di:oxide |
| 01/24/1991 | DE3923933A1 Filler for PVC moulding materials - prepd. by heating calcium sulphate di:hydrate with dilute dehydrating acid, washing with water and drying |
| 01/23/1991 | EP0409099A2 Conductive heating unit |
| 01/22/1991 | US4987011 Method for producing a silicon carbide coated clay |
| 01/22/1991 | US4986853 Pearlescent pigment preparations |
| 01/22/1991 | CA1279427C Spherical fused silica and its use in fillers and resin compositions |
| 01/16/1991 | EP0408186A1 Pigment dispersant |
| 01/15/1991 | US4985477 Method of producing treated silica filler for silicone rubber |
| 01/15/1991 | US4985380 Method of making thin refractory flakes |
| 01/15/1991 | US4985078 Thermostable zinc ferrite color pigments containing 0.05-0.5 wt % lithium, a process for their preparation and their use |
| 01/10/1991 | DE3922508A1 Producing silicic acid and acid solns. of aluminium salts, etc. - by reacting glassy residue from fossil fuel reactors with mineral acids |
| 01/09/1991 | EP0406731A2 Surface-modified micaceous particulates having improved dispersibility in aqueous media |
| 01/09/1991 | EP0406657A1 Platelets as substrates |
| 01/09/1991 | EP0406605A1 Process for the calcination of filter cakes in directly heated rotary furnaces |
| 01/09/1991 | EP0406550A1 Process for the preparation of purified calcium sulfate dihydrate from aqueous solutions |
| 01/09/1991 | EP0246523B1 Nacreous pigments |
| 01/08/1991 | US4983681 Colored microfine globular particles, method for production thereof, and uses thereof |
| 01/02/1991 | EP0406194A1 Process for coating titanium dioxide pigments |
| 01/02/1991 | EP0404864A1 Energy conserving process for calcining clay. |
| 12/30/1990 | CA2020013A1 A process for the calcination of filter cakes in directly heated rotary kilns |
| 12/27/1990 | EP0404378A1 Coating composition |
| 12/27/1990 | CA1278169C Process for the production of titanium dioxide pigments |
| 12/25/1990 | US4980395 Process for the preparation of large surface area, finely divided precipitated calcium carbonate and filled polymeric compositions of matter containing said calcium carbonate |
| 12/25/1990 | US4980106 Method for dry-pelletizing carbon black and equipment to implement the method |
| 12/25/1990 | US4979991 Production process of pigment |
| 12/19/1990 | EP0403270A1 Hard abrasive particle and method of producing same |
| 12/19/1990 | EP0403180A2 Coated particulate metallic materials |
| 12/18/1990 | US4978516 Process for treating talc |
| 12/18/1990 | US4978396 Alkali metal phosphate and water soluble organic material dispersing agents; paper manufacturing |
| 12/18/1990 | US4978394 Metal oxide coated aluminum pigments |
| 12/13/1990 | CA2018768A1 Coated particulate metallic materials |
| 12/12/1990 | EP0402026A2 Black pigment particles |
| 12/12/1990 | EP0401631A2 A continuous process for the separation of a partially water soluble component from a slurry |
| 12/12/1990 | EP0401624A1 Process for preparing yellow iron oxide pigments |
| 12/12/1990 | CN1047681A Dyed mineral pigments and applications |
| 12/11/1990 | US4977024 Magnesia granule coated with silica or forsterite |
| 12/11/1990 | US4976945 Process for producing carbon black |
| 12/11/1990 | US4976787 Plating pearl mica with titanium dioxide and chromium compound, then plating with metal |
| 12/11/1990 | US4976786 Method for forming aggregated kaolin pigment |
| 12/11/1990 | US4976777 Metal powder having controlled particle size distribution for metallic pigments and process for producing the same |
| 12/11/1990 | CA1277456C Pearl lustre pigments stable to glaze and enamel |
| 12/09/1990 | CA2018462A1 Process for the production of iron oxide yellow pigments |
| 12/05/1990 | EP0401045A1 Titanium dioxide-based chromatic pigments |
| 12/05/1990 | EP0400322A1 Refractory metal oxide coated abrasives and grinding wheels made therefrom |
| 12/05/1990 | CN1047519A Carbon black having a high specific surface area |
| 12/04/1990 | US4975323 Useful for coating galvanized steel to be welded |
| 11/30/1990 | CA2013350A1 Refractory metal oxide coated abrasives and grinding wheels made therefrom |