| Patent Number |
Title Of Patent |
Date Issued |
| 7452600 |
Silica |
November 18, 2008 |
| Silanized, structurally modified, pyrogenically produced silicas, characterised by groups fixed to the surface, wherein the groups are dimethylsilyl and/or monomethylsilyl, are produced in that pyrogenically produced silica is treated by a known method with dimethyldichlorosilane and |
| 7442727 |
Pyrogenically prepared, surface modified aluminum oxide |
October 28, 2008 |
| Pyrogenically prepared, surface modified aluminum oxide, having the following physical chemical properties: TABLE-US-00001 Surface area [m.sup.2/g] 50 to 150 Tamped density [g/L] 25 to 130 Drying loss [%] less than 5 Loss on ignition [%] 0.1 to 15 |
| 7402293 |
Surface-modified, aerogel-type structured silica |
July 22, 2008 |
| A surface-modified, aerogel-type, structured silica is produced by spraying an aerogel-type, structured silica with a silanizing agent, post-mixing and conditioning. It can be used as a flatting agent. |
| 7144930 |
Functionalized, structurally modified silicas |
December 5, 2006 |
| Functionalized, structurally modified silicas with 3-methacryloxypropylsilyl and/or glycidyloxypropylsilyl groups on the surface are prepared by mixing the silicas with the silane and heat-treating, destructuring and grinding the mixture. The silicas are employed in radiation-curing |
| 6809149 |
Functionalized silicas |
October 26, 2004 |
| Functionalized silicas with 3-methacryloxypropylsilyl and/or glycidyloxypropylsilyl groups on the surface are prepared by mixing the silicas with the silane and heat-treating the mixture. The silicas are employed, for example, in solvent-containing coatings. |
| 6593393 |
Radiation-curing coating systems |
July 15, 2003 |
| Radiation-curing coating systems which contain a silanized silica, where the silane is hexamethyldisilazane, 3-methacryloxypropyltrialkoxysilane and/or glycidyloxypropyltrialkoxysilane as the silanizing agent. The radiation-curing coating systems can be used for coating derived timber |
| 6242373 |
Boron oxide-silicon dioxide mixed oxide |
June 5, 2001 |
| A boron oxide-silicon dioxide mixed oxide which has a BET surface of less than 100 m.sup.2 g, and optionally containing oxides of aluminium, titanium or zirconium, is prepared pyrogenically by flame hydrolysis. The mixed oxide is used in glass making. |
| 6083859 |
Boron oxide-silicon dioxide mixed oxide |
July 4, 2000 |
| A boron oxide-silicon dioxide mixed oxide which has a BET surface of less than 100 m.sup.2 g, and optionally containing oxides of aluminium, titanium or zirconium, is prepared pyrogenically by flame hydrolysis. The mixed oxide is used in glass making. |
| 6022404 |
Surface-modified, pyrogenically produced mixed oxides, method of their production and use |
February 8, 2000 |
| Surface-modified, pyrogenically produced mixed oxides which contain two or more components of the series SiO.sub.2, Al.sub.2 O.sub.3, TiO.sub.2, ZrO.sub.2, Fe.sub.2 O.sub.3, Nb.sub.2 O.sub.5, V.sub.2 O.sub.5, WO.sub.3, SnO.sub.2, GeO.sub.2 and have been surface-modified with one to sever |
| 5711797 |
Silanized silicic acids |
January 27, 1998 |
| The silanized, pyrogenically prepared silicic acids are prepared by treating pyrogenically prepared silicic acids with an organosilane selected from the group (RO).sub.3 SiC.sub.n H.sub.2n+1, in which n--from 10 to 18 and R stands for an alkyl. |
| 5665156 |
Silanized silicon acids |
September 9, 1997 |
| The silanized, pyrogenically prepared silicic acids which are not dispersed in a solvent are prepared by treating pyrogenically prepared silicic acids with an organosilane selected from the group (RO).sub.3 SiC.sub.n H.sub.2n+1, in which n--from 10 to 18 and R stands for an alkyl. |
| 5004719 |
Molded articles based on pyrogenically produced zirconium dioxide method for their manufacture, |
April 2, 1991 |
| Molded, or pressed articles on pyrogenically produced zirconium dioxide are disclosed and having the following features:These molded articles are manufactured by homogenizing pyrogenically produced zirconium dioxide with any one of kaolin, sugar, or urea, or mixtures while water is being |
| 4721530 |
Method for increasing the thickening action of pyrogenically produced silicon dioxide |
January 26, 1988 |
| The utilization of ethoxylated polyethyleneamines for addition to aqueous dispersions of pyrogenically prepared silicon dioxide in order to obtain an increase of the thickening action thereof. |
| 4482642 |
Process for the production of slugs of pyrogenically produced oxides |
November 13, 1984 |
| Pressed objects (slugs) of pyrogenically produced oxides such as SiO.sub.2, Al.sub.2 O.sub.3 and TiO.sub.2 are produced using a silica sol and water. As molding assistants thereby there is employed a polyhydric alcohol, e.g. glycerine or sorbitol. The water can be added adsorbed on a pyr |
| 4307023 |
Hydrophobic filler mixtures, process for its production and use |
December 22, 1981 |
| There is produced a hydrophobic mixture for RTV and LTV silicone rubber by applying a hydrophobizing agent to a precipitated silica, homogeneously mixing this powdery concentrate into a pyrogenically produced silica, tempering the mixture and mechanically compacting. The hydrophobic fill |
