| EPG (ENGINEERED NANOPRODUCTS GERMANY) AG Patent applications |
| Patent application number | Title | Published |
|---|
| 20110293923 | METALLIC ARTICLES HAVING VITREOUS OR GLASS-CERAMIC PIGMENTED PROTECTIVE LAYERS HAVING A HIGH CHEMICAL RESISTANCE - Metallic substrates with a vitreous or glass-ceramic pigmented protective layer are obtainable by applying an alkali metal silicate-containing coating sol to the substrate or a surface thereof and thermally densifying the layer thus obtained, said alkali metal silicate-containing coating sol comprising an oxidic pigment of at least one element selected from the third and fourth main or subgroups of the Periodic Table of the chemical elements and the transition metals Fe, Co, Ni, Cu, Zn, Nb and Ta. | 12-01-2011 |
| 20110201735 | SILOXANE COMPOSITE-BASED LIGHT-WEIGHT OPTICAL LENSES - Disclosed is a process of preparing a moulded article, comprising 1) hydrolysing a) at least one silane having one non-hydrolysable organic group, and b) at least one compound selected from b1) a silane having two non-hydrolysable organic groups, and b2) a hydrolysable polysiloxane, or a mixture thereof, and c) optionally at least one silane having no non-hydrolysable organic group, to prepare a composite composition comprising a hydrolysate or condensate, 2) placing the composite composition in a mould, 3) curing the composite composition to increase the degree of condensation, 4) removing the moulded article from the mould, and 5) heat treating the moulded article at a temperature of at least 100° C. The moulded article is preferably an optical lens which may be used for automobile headlights. | 08-18-2011 |
| 20110056411 | CEMENT ADDITIVES FOR OIL-COMPATIBLE CEMENTS - A process for the preparation of a cement material for cementing. The process comprises adding to a cement material comprising cement and water a precondensate of at least one hydrolysable organosilane and, optionally, (nanoscale) particles. | 03-10-2011 |
| 20110039737 | BINDERS FOR BINDING BEDS AND LOOSE FORMATIONS AND PROCESSES FOR PRODUCING THEM - A binder is described which comprises A) a hydrolysate or heterocondensate of at least one hydrolysable silicon compound and at least one metal, phosphorus or boron compound, the metal being selected from Al, Ge, Sn, Pb, Ti, Mg, Li, V, Nb, Ta, Zr and Hf, B) an organic polymerizable or polycondensable monomer or oligomer and C) a buffer, so that the pH of the buffered binder is in the range from 2 to 7, and optionally a complexing agent, if appropriate, the at least one hydrolysable silicon compound comprising one or more hydrolysable silicon compounds having at least one nonhydrolysable group or oligomers thereof. The binder is suitable for consolidating bulk or loose substrates. | 02-17-2011 |
| 20100316447 | INORGANIC-ORGANIC BINDER, METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF - A process for the preparation of a binder comprising a heterocondensate of (i) a hydrolysable silicon compound having at least one nonhydrolysable organic radical without polymerizable group and (ii) a metal and/or boron compound. The process comprises hydrolyzing (i) with water, adding (ii) to the resultant reaction mixture after the water in the reaction mixture is substantially consumed, and, optionally, adding an organic binder component to the heterocondensate and/or a precursor thereof. | 12-16-2010 |
| 20100193982 | HYPER-FINE CEMENT - The invention relates to a process for producing a hyper-fine cement, in which cement is wet milled in a nonaqueous solvent, if appropriate in the presence of a grinding aid, as a result of which a hyper-fine cement having a particle size D | 08-05-2010 |
| 20100178491 | ULTRA-HARD COMPOSITE LAYERS ON METAL SURFACES AND METHOD FOR PRODUCING THE SAME - The invention relates to a metal substrate comprising an ultra-hard composite layer consisting of an inorganic, vitreous matrix containing one or more abrasive fillers. According to the invention, the diameter of the filler particles or, if the filler particles have a platelet-type form, the thickness of the filler particles is less than the layer thickness of the composite layer. | 07-15-2010 |
| 20100028631 | FINE INTERFERENCE PIGMENTS CONTAINING GLASS LAYERS ON METAL, GLASS AND CERAMIC SURFACES AND METHOD FOR PRODUCTION THEREOF - A process for providing a substrate having a metal, glass or ceramic surface with a vitreous layer comprising an interference pigment. The process comprises comminuting an interference pigment having at least one dielectric interference layer by a wet grinding process; dispersing the comminuted interference pigment into a silicate-containing suspension to obtain a coating composition; applying the coating composition to the surface by a wet coating process; and densifying the coating composition at a temperature of not more than 650° C. | 02-04-2010 |
| 20100003537 | Alkali-Resistant Coating on Light Metal Surfaces - An article which comprises a surface of light metal. The surface is provided with an alkali-resistant protective coat comprising (a) an oxide layer which comprises silicon and boron as a basecoat and (b) an oxide layer which comprises silicon as a vitreous topcoat. | 01-07-2010 |
| 20080247009 | Optical Component Made of an Inorganic-Organic Hybrid Material for the Production of Refractive Index Gradient Layers with High Lateral Resolution and Method for the Production Thereof - An organic-inorganic hybrid material comprising (a) at least one soluble organic polymer and (b) at least one mono- or polynuclear metal complex having at least one ligand which comprises at least one photochemically and/or thermally polymerizable functional group. Also disclosed is an optical component which is made by using the hybrid material. | 10-09-2008 |
