| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_33c922e05f6133b7d72dbb849d77487d |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2030-884 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-74
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-88
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-34 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-74
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-34 |
| filingDate |
2019-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a9162d3962de8d58650d4646d61e278c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7780525c9ce207067c8e13bd0363072
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_67ad1ad9597cc3fd5c6bf4c3f27ea829
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bb77c37cd0bd0d2b08592bf9ff136f26 |
| publicationDate |
2021-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2021072200-A1 |
| titleOfInvention |
Dianhydride Analysis Method |
| abstract |
The present invention relates to a dianhydride analysis method, which can reliably analyze a dianhydride having high reactivity and low solubility. In addition, the present invention can analyze the structure of impurities by separating the impurities on the basis of having a similar retention time in HPLC analysis, and can analyze the purity of the dianhydride with or without chromophores. |
| priorityDate |
2018-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |