http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20140144259-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-0025 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-098 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L15-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-5317 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-098 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L15-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L15-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-5317 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F13-53 |
| filingDate | 2013-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a81c2b6c77a5d58887c0e4ffa447e2b8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_12c4c603cb2b54aa92e887420ac5502e |
| publicationDate | 2014-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20140144259-A |
| titleOfInvention | Color-stable super-absorbent |
| abstract | The present invention relates to a superabsorbent whose surface is complexed with metal ions and which comprises at least one phosphonic acid derivative, wherein the molar ratio of the polyvalent metal and the phosphonic acid derivative is 1.2 / n or less, The superabsorbent exhibits good stability against discoloration and surprisingly exhibits a low caking tendency without substantially impairing the utilization properties of the superabsorbent. Such a superabsorbent can be prepared by polymerizing an aqueous monomer solution comprising: a) at least one ethylenically unsaturated monomer comprising an acid group and optionally present in the form of at least one salt, b) at least one crosslinking agent, c) one or more initiators, d) optionally, one or more ethylenically unsaturated monomers copolymerizable with the monomers mentioned under a) e) optionally one or more water soluble polymers. The method also includes: Drying of the resulting polymer, Optionally, the pulverization of the dried polymer and the fractionation of the pulverized polymer, Optionally, surface post-crosslinking of the dried, optionally crushed and fractionated polymer, Addition of one or more salts of a polyvalent metal, and - Addition of one or more phosphonic acid derivatives. The method comprises adding the salt of the polyvalent metal and the phosphonic acid derivative in an amount such that the molar ratio between the metal and the phosphonic acid derivative does not exceed 1.2 / n, where n is the number of phosphonic acid groups in the phosphonic acid derivative . |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11406962-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10653812-B2 |
| priorityDate | 2012-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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