| Patent Number |
Title Of Patent |
Date Issued |
| 7553888 |
Aqueous dispersion |
June 30, 2009 |
| The invention relates to a method of producing an aqueous dispersion comprising mixing at least one silane compound and colloidal silica particles to form silanized colloidal silica particles, mixing said silanized colloidal silica particles with an organic binder to form the dispers |
| 7544726 |
Colloidal silica composition |
June 9, 2009 |
| The invention relates to a method of producing a stable substantially aqueous silanized colloidal silica dispersion having a silica content of at least about 20 wt %, comprising mixing at least one silane compound and colloidal silica particles, wherein the weight ratio of silane to |
| 7163358 |
Injection grouting |
January 16, 2007 |
| The invention relates to the use of a composition for injection grouting obtainable by mixing an alkali metal silicate or an organic silicate, colloidal silica particles, and at least one gelling agent, wherein the weight ratio of colloidal silica to silicate is from about 2:1 to about |
| 6893538 |
Process for the production of paper using silica-based sols |
May 17, 2005 |
| The invention relates to an aqueous silica-based sol comprising a nitrogen-containing organic compound and silica-based particles with a specific surface area of at least 300 square meters per gram of silica. The invention further relates to a process for the production of an aqueous |
| 6869256 |
Sealing composition and its use |
March 22, 2005 |
| A method for sealing rock or soil comprising inserting a sealing composition obtained by mixing a silica sol and at least one gelling agent, wherein the silica sol has an S-value higher than about 72%, a method for preparing the sealing composition and the composition obtained from t |
| 6857824 |
Sealing composition and its use |
February 22, 2005 |
| The present invention relates to a method for sealing rock or soil comprising inserting a sealing composition obtained by mixing a silica sol and at least one gelling agent, wherein the silica sol has an S-value higher than about 72%, a method for preparing the sealing composition and |
| 6800130 |
Construction material |
October 5, 2004 |
| The invention relates to a construction material comprising a hydraulic binder, water, and an aluminum-modified colloidal silica. The invention also relates to a method for preparing such materials and the use thereof. |
| 6764543 |
Mixture of silica sols |
July 20, 2004 |
| The invention concerns silica sol mixture comprising a first silica sol having a broad particle size distribution, the relative standard deviation being at least about 30% by numbers, and a second silica sol having a narrow particle size distribution having a relative standard deviation |
| 6596250 |
Mixture of silica sols |
July 22, 2003 |
| The invention concerns a silica sol mixture comprising a first silica sol having a broad particle size distribution, the relative standard deviation being at least about 30% by numbers, and a second silica sol having a narrow particle size distribution having a relative standard deviatio |
| 6387173 |
Composition and method to prepare a concrete composition |
May 14, 2002 |
| The present invention relates to a concrete composition comprising a hydraulic binder, aggregates, water, silica sol and a superplasticiser being a polycarboxylate. The invention further involves a method for preparation thereof and use of the prepared concrete composition as high fl |
| 6379500 |
Silica-based sols |
April 30, 2002 |
| An aqueous silica-based sol comprising a nitrogen-containing organic compound and silica-based particles with a specific surface area of at least 300 square meters per gram of silica. The invention further relates to a process for the production of an aqueous silica-based sol comprising |
