| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_33c922e05f6133b7d72dbb849d77487d |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2323-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2300-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2312-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2333-02 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L101-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-0025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-245
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-075 |
| classificationIPCInventive |
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/C08J3-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L101-14 |
| filingDate |
2019-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8339d7c8b0f049a0872cab9f6ffcfb0e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42ca5eff913dfd2b147a55ad3c40dd64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_48afabc74e695db7ea0d3adbe2a213fc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_07b194f521c713d7e739ecc68d000ddf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7c0d4d0fd717518b886e636a70b2dd91
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4c38f199a71c0a4ba41dd58e38e5ff42 |
| publicationDate |
2021-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2021230376-A1 |
| titleOfInvention |
Preparation Method of Super Absorbent Polymer and Super Absorbent Polymer Therefrom |
| abstract |
The present disclosure relates to a preparation method of a super absorbent polymer having excellent basic absorbency and liquid permeability at the same time by optimizing the degree of cross-linking of a base resin powder and a surface cross-linked layer, and a super absorbent polymer prepared therefrom. The preparation method of a super absorbent polymer includes forming a hydrogel polymer by cross-linking and polymerizing a monomer composition including a water-soluble ethylene-based unsaturated monomer having a degree of neutralization of less than 72 mol % and an internal cross-linking agent; drying, pulverizing and classifying the hydrogel polymer to form a base resin powder; forming a surface cross-linked layer by further cross-linking a surface of the base resin powder in the presence of a surface cross-linking agent and further neutralizing the base resin powder by treating the base resin powder with a basic solution during or after forming a surface cross-linked layer. |
| priorityDate |
2018-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |