| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_74584c80a526fd2c793b3b5e89798b89
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_51b7565b6d77f2b18cfc38049e6145f1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fd3f78a28d1486622f2818409693f4fb |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H21-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-375
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S516-928
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-455
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-29 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-1435 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H21-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-29
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-37
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-45 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-143
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01F3-12 |
| filingDate |
2005-04-07^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ebb0de9cdd8901ec42804da3e5963868
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_48fd7217aca67554037bef237d362353
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f0d332bfb55afeec77a76af4b6530635 |
| publicationDate |
2005-10-13^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2005228058-A1 |
| titleOfInvention |
Silica-based sols and their production and use |
| abstract |
The invention relates to a process for producing aqueous silica-based sols which comprises providing a cationic ion exchange resin having at least part of its ion exchange capacity in hydrogen form; bringing said ion exchange resin in contact with an aqueous alkali metal silicate to form an aqueous slurry; adjusting the pH of the aqueous slurry and separating the ion exchange resin from the aqueous slurry, as well as the silica-based sols obtained by the process. The invention also relates to silica-based sols obtained by the process, as well as a process for producing paper which comprises providing an aqueous suspension comprising cellulosic fibres; adding to the suspension one or more drainage and retention aids comprising a silica-based sol according to the invention; and dewatering the obtained suspension to provide a sheet or web of paper. |
| priorityDate |
2004-04-07^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |