http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2471416-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a12b0be1b74901f556d1d1a9200529ce |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-12 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A23L29-294 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K47-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-193 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A23L29-294 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K47-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K47-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-193 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-36 |
| filingDate | 2002-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2010-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8acc5cc75a5634c9b4dffd104725fc77 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9185860363826c7c49ffb55303f8502c |
| publicationDate | 2010-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2471416-C |
| titleOfInvention | Low water uptake silicas |
| abstract | The subject of the present invention is a process for preparing silicas of precipitation with low water recovery, including the successive stages comprising: (a) producing an initial stock stem comprising a silicate, the silicate concentration in said stock, expressed in equivalent SiO2, being less than 15 g / L; (b) bring the pH of the medium up to a value between 7 and 8 by addition of an acidifying agent; (c) in the middle thus realized, to carry out the simultaneous addition of a silicate and an agent acidifying agent, the respective amounts of silicate and acidifying agent added over the course of time being specifically such that, during the entire duration of the addition (i) the pH of the reaction medium remains between 7 and 8; and (ii) the concentration of silicon in the medium, expressed in equivalent SiO2 remains less than 35 g / L; (d) adding an acidifying agent to the medium obtained at the end of step (c), so as to bring the medium to a pH understood between 3 and 6.5; and (e) filtering the resulting aqueous silica dispersion, and Dry the filter cake made after the filtration. The invention also concerns silicas with a low water uptake obtained according to process and their use, in particular for reinforcing silicones or polymeric or elastomeric matrices. |
| priorityDate | 2001-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 60.