| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b8be6a6c990669567cc455d32b00535e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H21-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-545
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J13-0039
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J13-0034
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-149 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-149
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-148
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J13-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H23-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H21-10 |
| filingDate |
2000-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2007-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_098a127a6cb59958eb10f54d190ca955
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a0b3f16c224c27a40d85d35551759e9b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_25054db4ccbb3f1824c3837919c79111 |
| publicationDate |
2007-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2393797-C |
| titleOfInvention |
Silica-based sols |
| abstract |
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 silica-based sol comprising a nitrogen-containing organic compound which comprises incorporating a nitrogen-containing organic compound into a silica-based sol containing silica-based particles with a specific surface area of at least 300 square meters per gram of silica. The invention also relates to the use of 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 as a flocculating agent in the production of pulp and paper and in water purification. The invention further relates to a process for the production of paper from an aqueous suspension containing cellulosic fibres, and optional fillers, which comprises adding to the suspension (i) an aqueous silica-based sol comprising an organic nitrogen-containing compound and (ii) at least one charged organic polymer, forming and draining the suspension on a wire. |
| priorityDate |
1999-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |