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7625445 |
Aggregate for making a molded article and a method of making the aggregate
An aggregate for making a molded article and a method of making the aggregate is disclosed. The aggregate consists of an acrylate based resin matrix and anti abrasive particles chiefly quartz...
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7612137 |
Surface-modified silica gels
The invention relates to surface-modified silica gels, to a process for preparing them, and to their use as matting agents in coating materials. As a result of the nature of the surface...
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7611815 |
External additive for toner for electrophotography, toner for electrophotography, double-component developer for electrophotography, image-forming process using the toner, and image-forming apparatus using the toner
An external additive for a toner for electrophotography which contains oxide fine particles which contain silicon, in which the oxide fine particles have a primary particle diameter of 30 nm to 300...
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7569107 |
Treated filler and process for producing
The present invention is related to treated filler and processes for producing said treated filler. Untreated filler slurry can be treated with a treating material and, optionally, a coupling...
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7563317 |
Silicas
Silanised, structurally modified silicas, characterised by groups fixed on the surface, the groups being alkylsilyl (SiC n H 2n+1 , with n=2-18). They are produced in that pyrogenically produced...
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7503970 |
Particulate metal oxide
A particulate metal oxide having the mean length of the primary particles in the range from 50 to 90 nm, the mean width of the primary particles in the range from 5 to 20 nm, and the median volume...
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7470725 |
Organically modified aerogels, processes for their preparation by surface modification of the aqueous gel, without prior solvent exchange, and subsequent drying, and their use
The present invention relates to novel, organically modified aerogels, uses thereof, and a process for producing them in which a) a hydrogel is introduced as an initial charge, b) the hydrogel...
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7393407 |
Silicon oxide slurry and method for producing such slurry
The present invention relates to a slurry containing water, amorphous silica panicles having a particle size less than 1 micron and silica flour with a particle size between 2-200 microns. In order...
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7300510 |
Goniochromatic bright pigments
Goniochromatic luster pigments comprising at least one dielectric low-refractive interference-colored layer which includes a polar organic solvent which can interact with the layer material via...
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7220449 |
High-whiteness hydrophobic precipitated silica with ultralow moisture absorption
The invention relates to hydrophobicized precipitated silicas that possess an extremely high whiteness and extremely low moisture absorption. The hydrophobic precipitated silicas are prepared,...
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7208038 |
Silane-modified biopolymeric, biooligomeric, oxidic or siliceous filler, process for its production and its use
Silane-modified biopolymeric, biooligomeric, oxidic or siliceous filler obtainable by reacting at least one biopolymeric, biooligomeric, oxidic or siliceous filler in a compressed gas with at least...
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7186440 |
Process for producing hydrophobic silica powder
A process for producing a hydrophobic silica powder, comprises the steps for hydrophobic treatment of: adding to a silica sol in mixed solvent having a silica concentration of 5 to 50 mass %...
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7160375 |
Aqueous glittering color material composition
An aqueous glittering color material composition of the present invention is an aqueous glittering color material composition comprising a glittering pigment having a water repellent particle...
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7144930 |
Functionalized, structurally modified silicas
Functionalized, structurally modified silicas with 3-methacryloxypropylsilyl and/or glycidyloxypropylsilyl groups on the surface are prepared by mixing the silicas with the silane and...
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7144628 |
Spherical silica-titania-based fine particles surface-treated with silane, production process therefor, and external additive for electrostatically charged image developing toner using same
Spherical silica-titania-based fine particles surface-treated with silane are provided. The fine particles have a titanium atom content of 0.001 to 5% by weight, a frictional electrification with...
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7083888 |
External additive for electrostatically charged image developing toner
An external additive for electrostatically charged image developing toner is provided. The additive includes spherical hydrophobic fine silica particles having primary particles with a particle...
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7074457 |
Process for preparing high-whiteness hydrophobic precipitated silica with ultralow moisture absorption
A hydrophobic precipitated silica is prepared by a process comprising:
a) preparing a mixture of an organopolysiloxane derivative and a precipitated silica; b) conditioning the mixture...
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6921781 |
Process for covering silicas with wax
The present invention provides a process, which includes:
coating at least a portion of a surface of at least one silica particle with at least one wax, wherein the coating is carried out in...
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6899951 |
High-whiteness, non-heat-treated hydrophobic precipitated silica
The present invention provides a hydrophobic precipitated silica having the following properties:
carbon content 1.0-8.0% methanol wettability 20-55% reflectance >94% BET/CTAB ratio...
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6822020 |
Tetrahalosilane blends for treating silica
Modified silica fillers are prepared by contacting silica with blends or mixtures containing diorganodihalosilanes and tetrahalosilanes in weight ratios of 1:0.1 to 1:2, respectively. While...
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6770130 |
Silica composite oxide particles and method of producing the same
Silica composite oxide particles comprising silica and a metal oxide other than silica, the content of the metal oxide other than silica being from 30 to 50 mol %, and a coefficient of variation in...
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6736891 |
Process for producing hydrophobic particulate inorganic oxides
Described is an improved process for producing hydrophobic particulate inorganic oxides useful for reinforcing polymeric compositions, e.g., rubber, by using a certain amount of hydrophobizing...
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6620514 |
Nanostructured forms and layers and method for producing them using stable water-soluble precursors
A process for preparing a composition for producing nanostructured mouldings and layers comprises contacting an aqueous and/or alcoholic sol of a compound of an element selected from silicon sand...
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6613139 |
Chlorosilane blends for treating silica
Modified silica fillers are prepared by contacting silica with blends or mixtures containing diorganodihalosilanes and monoorganotrihalosilanes in weight ratios of 1:0.1 to 1:2, respectively. While...
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6596071 |
Organic and inorganic composite pigments, and paint and resin composition using the same
Organic and inorganic composite pigments having an average particle diameter of 0.01 to 10.0 μm composed of a white inorganic particle, an organosilane compound obtained from alkoxysilanes, or...
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6547870 |
Pigment preparation
The invention relates to a non-dusting, homogeneous pigment preparation, comprising ≧40% by weight of one or more effect pigments, 0.5-60% by weight of a polyalkylene glycol and/or one or more...
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6544327 |
Pigment preparation
The invention relates to a non-dusting homogeneous pigment preparation which is notable in that it comprises at least 40% by weight of one or more effect pigments, from 0.5 to 60% by weight of an...
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6500534 |
Powder-coated substrates with topcoat based on silanes containing epoxide groups
The invention relates to powder-coated substrates bearing on a powder-coated surface a scratch-resistant and abrasion-resistant topcoat of a coating material which comprises: a) condensates based...
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6479156 |
Nanocomposite for thermal insulation
The invention relates to a nanocomposite for thermal insulation especially for fireproofing purposes, which can be obtained by combining (A) at least 35 wt. % of nanoscaled, optionally...
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6475561 |
Method of producing silicon tetrachloride-based and organically modified aerogels
The present invention refers to a method of producing organically modified aerogels on a basis of silicon tetrachloride in which: a) a hydrogel is obtained by direct reaction of silicon...
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6476093 |
Frosting composition and frosted glass container
There are disclosed a frost-coating composition, which comprises (i) a hydrophobic silica particle or further comprises (ii) a polymer particle, in addition to a photocurable compound; and a...
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6420456 |
Process for hydrophobicizing particles, and their use as fillers in polymer masterbatches
Particles are hydrophobicized by treatment with a compound containing amino and silane groups, followed by treatment with a silane compound containing a hydrophobic group. The invention is...
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6409814 |
Pigment preparations and water-borne effect base coats prepared therewith
Pigment preparations, having a solid content of 10 to 60 wt-%, obtainable by mixing together, in the presence of at least one water-miscible organic solvent, pigments coated with a...
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6409815 |
Surface-modified conductive pigment
Surface-modified conductive pigment obtainable by partial coating of a conductive pigment with an organic modifying agent. The modifying agent is an organometallic compound of the elements silicon,...
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6344240 |
Method of preparing hydrophobic silica
The present invention provides a method of treating silica, wherein dry silica is contacted with a reaction medium consisting essentially of concentrated aqueous acid and a hydrophobing agent...
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6313247 |
Cinchonan based chiral selectors for separation of stereoisomers
Enantioseparation methods using chemical compounds which contain the chiral 9,11-substituted-10,11-dihydro-cinchonan skeleton (9,11-Subst.-DHC) and the precursors thereof with the 9-substituted...
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6303223 |
Fused spherical silica for liquid sealant and liquid sealing resin composition
The present invention relates to fused spherical silica for liquid sealant which has a particle size distribution such that maximum particle size is 24 μm, average particle size is 2 to 7 μm, and...
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6287376 |
Hydrophobic, oxidic or siliceous fillers and their use
Hydrophobic, oxidic and/or siliceous fillers obtainable by treating an oxidic and/or siliceous filler with 0.1 to 50 parts by weight, per 100 parts by weight of filler, with an adduct of sulfur and...
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6239243 |
Method for preparing hydrophilic silica gels with high pore volume
A method for the preparation of hydrophilic silica gels with high pore volume. In the preferred method a hydrophilic silica hydrogel treated with an organosilicon compound to effect hydrophobing of...
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6214106 |
Silane treated inorganic pigments
The present invention provides a process for the production of hydrophobic inorganic oxide products which comprises reacting the inorganic oxide particles with organohalosilanes, preferably...
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6176918 |
Modified nacreous luster pigments for water paint systems
Modified pearl luster pigments for waterborn coating systems, based on a platelet-form substrate coated with metal oxides and, located on the topmost metal oxide layer, a top layer consisting of at...
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6174926 |
Method of preparing organically modified silica
The present invention provides a method of preparing lipophilic silica in an aqueous medium in the absence of added acids, bases, or organic solvents. In particular, the present inventive method of...
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6159540 |
Polyfunctional organosilane treatment of silica
The present invention provides a method of treating silica wherein silica is reacted with a di- or tri-functional organosilane in an aqueous acid medium to provide a crude organosilane-capped...
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6123762 |
Low-dust, well dispersible granulates based on silicate fillers modified with organosilicon compounds
The invention relates to granulates based on silicate fillers, the surface of which was modified with organosilicon compounds, a process for manufacturing the granulates by spraying a suspension of...
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6120596 |
Method for treating pigment particles to improve dispersibility and particle size distribution
Surface treated pigment particles made by contacting a dispersion of pigment particles with a halosilane or organohalosilane, elevating the temperature to form a siloxane on the surface of the...
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6107351 |
Neutral-aged hydrophobic silica gels with reduced surface area
The present invention is neutral-aged hydrophobic silica gels having a reduced surface area and a method for their preparation. The method comprises three steps, where in the first step a mixture...
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6086668 |
Uniformly coated particulate metal oxide
Metal oxide particles having a substantial uniform and homogeneous (across-particle) coating of a metal oxide or organofunctionalized metal oxide are disclosed and are prepared by hydrolysis of a...
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6068694 |
Silica based aggregates, elastomers reinforced therewith and tire with tread thereof
This invention relates to aggregates comprised of particles which contain silicon dioxide and to elastomers reinforced therewith. The invention also relates to tires having treads composed of such...
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6051672 |
Method for making hydrophobic non-aggregated colloidal silica
A method for making hydrophobic non-aggregated colloidal silica comprising reacting an aqueous suspension of a hydrophilic non-aggregated colloidal silica having an average particle diameter...
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6033781 |
Ceramic powders coated with siloxane star-graft polymers
A coated ceramic powder comprises a plurality of ceramic particles and a siloxane star-graft coating polymer encapsulating at least a portion of the particles. The coating polymer comprises...
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