http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2010521538-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2333-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L71-02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F20-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-267 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L33-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-245 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F6-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L15-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F13-15 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F13-53 |
| filingDate | 2008-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2010-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2010521538-A |
| titleOfInvention | Method for producing water absorbent resin and use thereof |
| abstract | The present invention relates to a method for producing a water-absorbent resin in which a hydrogel crosslinked polymer obtained by polymerization in the presence of an internal cross-linking agent is crushed in a crushing step and then dried, and polymerization is performed in a region where the internal cross-linking agent is large. In some cases, a method for producing a water-absorbent resin in which the amount of fine powder generated is reduced and a method for using the same are also provided. A monomer containing a carboxyl group-containing unsaturated monomer is reacted with an internal crosslinking agent (A) having two or more radically polymerizable unsaturated groups in one molecule and a carboxyl group in one molecule. And a step of polymerizing in the presence of a non-polymeric internal cross-linking agent (B) having two or more functional groups capable of forming an ester bond or an amide bond to obtain a water-containing gel-like cross-linked polymer. This is a production method comprising a step of crushing a hydrogel crosslinked polymer and a step of drying the obtained crushed product, and the amount of (A) used is 0 with respect to the carboxyl group-containing unsaturated monomer. 0.01 mol% or more and 0.2 mol% or less, and the molar ratio (B) / (A) is 0.01 or more and 1.8 or less. [Selection figure] None |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9012356-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-5551836-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013073682-A1 |
| priorityDate | 2007-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 147.