| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_abdb868637d2fcaf603268c2dcb704ea |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2405-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2379-08 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05G3-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05G5-37
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05G3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05G3-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-246
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F251-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05G3-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L51-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F251-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05G3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05G5-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F230-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05G3-80 |
| filingDate |
2020-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2021-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-112480439-A |
| titleOfInvention |
Preparation method of fertilizer synergistic controlled-release agent modified potassium polyaspartate |
| abstract |
The invention relates to the field of agriculture, in particular to a preparation method of fertilizer synergistic controlled release agent modified polyaspartic acid potassium; according to the invention, polysuccinimide reacts with potassium hydroxide and diamine to prepare partially aminated potassium polyaspartate, and then the partially aminated potassium polyaspartate is crosslinked with hydrophilic modified chitosan under the action of a crosslinking agent, so that the prepared fertilizer synergistic controlled-release agent has a larger crosslinking degree compared with common polyaspartic acid, and the hydrophilic modified chitosan endows a material with better water absorption performance and improves the water retention performance of the material; as a coating material of the fertilizer, the slow-release synergistic effect can be effectively achieved; the fertilizer synergistic controlled-release agent is prepared by using natural degradable molecules, and is a completely green agricultural fertilizer additive material without secondary pollution. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115005032-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115762649-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115005032-A |
| priorityDate |
2020-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |