http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2007532456-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H21-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-143 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H21-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-1435 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01F23-50 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-143 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H21-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-68 |
| filingDate | 2005-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2007-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2007532456-A |
| titleOfInvention | Silica-based sols and their production and use |
| abstract | The present invention provides (a) a cation exchange resin having at least part of the ion exchange capacity in the form of hydrogen, and (b) contacting the ion exchange resin with an aqueous alkali metal silicate solution to produce an aqueous slurry. (c) Stir the aqueous slurry until the pH of the aqueous phase is in the range of 5.0 to 11.5 and / or stir the aqueous slurry to enable particle aggregation or microgel formation corresponding to S values up to 45% Obtaining a pH of the aqueous phase of at least 5.0, (d) adjusting the pH of the aqueous phase to 9.0 or more using one or more materials comprising at least one aluminum compound, and (e) the ion exchange resin. It is related with the manufacturing method of the sol based on the aqueous | water-based silica characterized by isolate | separating from said aqueous phase after a process (c) or a process (d). The present invention also provides S values in the range of 15-25%, molar ratios Si: Al in the range of 20: 1 to 50: 1, molar ratios Si: X in the range of 5: 1 to 17: 1 ( X is an alkali metal), and relates to a silica-based sol comprising silica-based particles having a SiO 2 content of at least 5% by weight and a specific surface area of at least 300 m 2 / g. Furthermore, the present invention provides (i) an aqueous suspension containing cellulose fibers, and (j) one or more dehydration and retention aids containing the silica-based sol of the present invention is added to the suspension. And (k) a paper manufacturing method, characterized in that the resulting suspension is dewatered to obtain a paper sheet or web. |
| priorityDate | 2004-04-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 48.