| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bcc345cddc2ed14955753e23baf6f218 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M2037-0053 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M37-0015
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-0021
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K47-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K47-38 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K47-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61M37-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K47-38 |
| filingDate |
2019-11-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6b80084901cc370587587f7c5c46f5f9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42bfcccaecf6322ca8bcb67e8a38a48c |
| publicationDate |
2020-02-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-110812687-A |
| titleOfInvention |
A kind of preparation method of porous polymer microneedle |
| abstract |
The invention provides a preparation method of porous polymer microneedles. Polyvinyl alcohol (PVA) is heated and dissolved in water, mixed with fully absorbent cellulose, and then cooled to 30°C-45°C; The cross-linking agent is added dropwise with acid to adjust the pH value; it is molded on a negative mold and dehydrated to obtain porous polymer microneedles. The process of the invention is simple and easy to operate, the raw materials are easily obtained, and the production control is convenient. The invention does not require subsequent cleaning and removal of the porogen, simplifies the process flow, and reduces the pressure of post-treatment. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113440474-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113440474-A |
| priorityDate |
2019-11-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |