http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2008174485-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_696ca0ae93d5cf5a686273601361781f |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D9-02 |
| filingDate | 2007-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3adced8f537391557cf3243bc79d58c3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9975d8e1529418da9407083f358efd76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a2de52c75cd90b0a1a0abf0bbbc54f86 |
| publicationDate | 2008-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2008174485-A |
| titleOfInvention | Crystallization method |
| abstract | [PROBLEMS] To crystallize pyromellitic dianhydride solution or slurry using acetic acid or a mixture of acetic acid and acetic anhydride as a solvent. A crystallization method for obtaining a product is provided. Pyromellitic dianhydride obtained by cooling a pyromellitic dianhydride solution or slurry using acetic acid or a mixture of acetic acid and acetic anhydride from a cooling start temperature of 120 to 200 ° C. to 20 to 95 ° C. The pyromellitic dianhydride is characterized in that the cooling rate from the cooling start temperature (° C.) to the cooling start temperature (° C.)-25 (° C.) is 1 ° C./min or less. Crystallization method. [Selection figure] None |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2015050344-A |
| priorityDate | 2007-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.