Predicate |
Object |
classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K2003-2227 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2300-12 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-151 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L33-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-245 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-3085 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-3021 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L15-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-075 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-267 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-28026 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-28004 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L15-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-08 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L33-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-075 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-151 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-22 |
filingDate |
2016-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate |
2021-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationDate |
2021-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
CN-107922636-B |
titleOfInvention |
Process for making superabsorbent polymers |
abstract |
Provided is a method of producing a superabsorbent polymer that exhibits more improved liquid permeability and absorption rate while maintaining excellent absorption properties. The method for preparing a superabsorbent polymer may include the steps of: performing cross-linking polymerization of a water-soluble ethylenically unsaturated monomer having an at least partially neutralized acidic group in the presence of an internal cross-linking agent to forming an aqueous gel polymer comprising a cross-linked polymer; drying, pulverizing and size sorting the aqueous gel polymer to form a base polymer powder; using the surface in the presence of the first alumina particles The crosslinking solution performs surface crosslinking of the base polymer powder; and adding second alumina particles to the surface crosslinked base polymer powder, and then mixing them with each other. |
priorityDate |
2016-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |