Patents for C09C 1 - Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black (27,610)
08/1990
08/21/1990US4950502 Method of hydrophobing silica
08/21/1990CA1272855A1 Orthorhombic lead chromate pigments of greenish hue
08/16/1990EP0382427A2 Cationically dispersed slurries of calcined kaolin clay
08/16/1990EP0382370A1 Treated silica for reinforcing silicone elastomer
08/16/1990EP0381734A1 Improved method of forming stable dispersions of particulate matter.
08/15/1990CN1044668A Manufacturing method of blue inorganic pigment
08/14/1990US4948631 Preparation of particularly bluish pearl luster pigments
08/14/1990US4948362 Energy conserving process for calcining clay
08/10/1990CA2007945A1 Cationically dispersed slurries of calcined kaolin clay
08/07/1990US4946505 Mixing pigment containing granules with cement, binders and water
08/06/1990CA2008221A1 Treated silica for reinforcing silicone elastomer
08/02/1990CA2005696A1 Reactor and method for production of carbon black with broad particle size distribution
08/01/1990EP0380430A1 Process for grinding calcium carbonate in an aqueous medium
08/01/1990EP0379805A2 Non-magnetic potassium ferrite pigments, process for preparing them and paint or resin containing them
07/1990
07/25/1990EP0378837A1 Preparation of calcium sulfate dihydrate having an elongated crystalline structure
07/25/1990EP0378785A1 Process for hydrophobing solid particles containing Si-OH groups, and their use
07/24/1990US4943324 High performance paper filler and method of producing same
07/19/1990DE4001222A1 Dispersion of hydrophilic pigment treated with surfactant - used as dispersant in relatively apolar matrix to reduce viscosity and increase thermal stability
07/18/1990EP0377881A1 Materials for use as fire retardant additives
07/18/1990CN1043948A Method of making plastics rubber filler by salt mud waste
07/12/1990DE4000257A1 Rubber compsn. for motor vehicle tyres - comprises styrene-butadiene copolymer of specified glass transition temp. and carbon black of specified unit surface area and particle size
07/11/1990EP0377326A1 Method for the preparation of a transparent metal oxide pigment
07/11/1990EP0377149A2 Floor protection agent and method for its preparation
07/11/1990CN1043686A Process for preparing chrome yellow with galena and chromite
07/10/1990US4940572 Process for preparing an iron oxide
07/04/1990EP0376033A2 Process for preparing magnetic iron oxides, and pigments thus obtained
07/04/1990CN1043515A Chemically inert pigmentary zinc oxides
07/04/1990CN1008631B Process for artificial sodium based bentonite
07/03/1990US4938952 Polymer supported cosmetic products and methods
06/1990
06/28/1990WO1990006974A1 Chemically inert pigmentary zinc oxides
06/28/1990CA2006525A1 Transparent metal oxide pigment and method for preparing it
06/27/1990CN1043328A Process for producing brown dye
06/27/1990CN1043327A Process for preparing mixed dyes of fe-cr series
06/26/1990US4937063 Bismuth vanadate process
06/26/1990US4936913 Aluminum flake pigment
06/26/1990CA1270702A1 Titanium dioxide pigment coated with boria-modified silica
06/26/1990CA1270701A1 Filler and polymer composition containing filler
06/26/1990CA1270622A1 Process for the improvement of titanium dioxide pigments by post-treatment
06/20/1990EP0373575A1 Electrically conductive pigmentary platelets
06/20/1990EP0373426A2 Inorganic pigments coated with polyorganosiloxane
06/20/1990EP0373300A2 Process for preparing a master batch
06/20/1990CN1043150A Preparation method for wollastonite packing
06/19/1990US4935391 Process for preparing a purified mineral coating
06/19/1990US4935219 Process for obtaining ferric oxide and ammonium salts
06/19/1990US4935063 Fillers and pigments possessing organic polymer stabilizing properties and a process for their preparation
06/19/1990US4935062 Kaolinite aggregation using organo-silicon compounds
06/16/1990CA2005491A1 Conductive lamellar pigments
06/15/1990CA2000962A1 Chemically inert pigmentary zinc oxides
06/14/1990WO1990006103A1 Titanium dioxide sunscreens
06/13/1990EP0372335A2 Black pigment, process for preparing it and its use
06/13/1990CN1008374B Mfr. of an inorganic mo-w yellow dye
06/13/1990CN1008373B Treatment of clays with cationic polymers to prepare high bulking pigments
06/13/1990CN1007819B Carbonate-containing mineral fillers, pigments and similar materials
06/13/1990CA2005152A1 Inorganic pigments having improved properties
06/12/1990US4933387 Synthetic alkali metal alumino-silicates, methods and uses, compositions and their methods of preparation
06/12/1990US4933107 Easily peelable semiconductive resin composition
06/07/1990DE3840039A1 Process for preparing chemically reactive barium sulphate of specific morphology
06/06/1990EP0371745A2 Preparation of positive temperature coefficient compositions and their use in protection devices
06/06/1990EP0371530A1 Process for manufacturing barium sulphate with a variable morphology
06/06/1990EP0371343A1 Titanium dioxide, process for its preparation and use thereof
06/06/1990CN1008271B Controlling apparatus of elevator
05/1990
05/31/1990WO1990005586A1 Energy conserving process for calcining clay
05/31/1990CA2004283A1 Titanium dioxide sunscreens
05/30/1990EP0370799A1 Method for sealing carbon and graphite surfaces
05/30/1990EP0370701A1 Method for making pigment flakes
05/30/1990EP0370490A1 Easily dispersible coloring carbon black and process for preparing an ink
05/30/1990CN1042554A Stable aqueous suspension of precipitated silicon dioxide
05/29/1990US4929580 Paper coating, filtration, working, amines
05/29/1990US4929574 Seals for microwaves ovens
05/29/1990US4929431 Process for producing amorphous aluminosilicates
05/29/1990US4929343 Froth flotation
05/29/1990US4929280 Hydroformylation of carbon black
05/29/1990CA2003932A1 Titanium dioxide, a process for its production and its use
05/23/1990EP0368973A1 Air-gap interference pigments, manufacture and use thereof
05/23/1990EP0368936A1 Non-cylindrical reactor for carbon black production
05/23/1990DE3938373A1 Verfahren zur kontinuierlichen behandlung von material mit geringer schuettdichte Process for the continuous treatment of material with low schuettdichte
05/22/1990US4927718 Novel air electrode for metal-air battery with new carbon material and method of making same
05/22/1990US4927618 Introducing carbon dioxide into an aqueous calcium hydroxide slurry containing an anionic organopolyphosphonate polyelectrolyte
05/22/1990US4927607 Non-cylindrical reactor for carbon black production
05/22/1990US4927465 Kaolin clays for pitch control
05/22/1990US4927464 Particulate material
05/22/1990CA1269216A1 Transparent non-vitreous ceramic particulate
05/16/1990EP0368722A1 Stable aqueous suspension of precipitated silica
05/16/1990EP0368044A1 Method of coating carbon bodies
05/16/1990CN1042132A Precipitated silica absorbent, and compositions based on silica
05/09/1990EP0367236A1 Nacreous pigments colored by adsorbed dyes
05/09/1990EP0366825A1 Process for the preparation of fine platelike boehmite
05/08/1990US4923520 Spherical fused silica and its use in fillers and resin compositions
05/08/1990US4923518 Chemically inert pigmentary zinc oxides
05/04/1990CA2002254A1 Process for the production of fine tabular alumina monohydrate
05/03/1990WO1990004620A1 Inhibitive treatment for aluminum pigments
05/02/1990EP0366569A2 Compatibility agent for aqueous polypigmentary suspensions, one of the pigments being hydrated calcium sulfate
05/01/1990US4921542 Finely divided iron oxide black pigments, a process for their preparation and their use
05/01/1990US4921541 Orthorhombic greenish-tinged lead chromate pigments
05/01/1990US4921540 Corrosion inhibiting pigments based on zinc silicate their production and their use
05/01/1990CA1268301A1 Stabilised metal pigments
04/1990
04/25/1990EP0365046A1 Process for colouring concrete
04/24/1990US4919727 Oxidation resistant, heat resistant iron oxide black pigments, a process for their preparation and their use
04/24/1990US4919726 Calcining a mixture of titanium oxide for titanium oxide hydroxide and color-forming metal compound
04/24/1990US4919723 Rutile mixed phase pigments with improved coloristic properties