http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101481378-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9353da21ba23e86e687a465920a68849 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-08 |
| filingDate | 2008-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2011-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c83df32cab298947fd6949cffee0784d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_50c39aca581980849b5cde46b0c35e98 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4986b34522635e8a26a79f6e0f053e2b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c65d7684e95c761fd0dfc2579ff55306 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_df4ae22f8065c6a972a7f0c15bae8bf2 |
| publicationDate | 2011-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-101481378-B |
| titleOfInvention | 2,3,6,7-tetracarboxylic dianhydride triptycene and method for synthesizing the same |
| abstract | The invention discloses 2,3,6,7-tetracarboxylic dianhydride triptycene and a synthetic method thereof. The synthetic method comprises the following steps: preparing 2,3-dimethyl anthracene by a series of reaction of oxylene and phthalic anhydride which are cheap and easily obtained, and further reacting with 2-amino-4,5-hemellitic acid to obtain 2,3,6,7-tetramethyl triptycene; obtaining high-purity 2,3,6,7-tetramethyl triptycene by simple and rapid separation on columns, further oxidizing by potassium permanganate to obtain 2,3,6,7-tetracarboxylic acid triptycene, then obtaining the 2,3,6,7-tetracarboxylic dianhydride triptycene by dehydration. The method has the advantages of cheap and easily-obtained raw material, simple preparation method, high product purity which is up to 98% and the like, and the obtained product dianhydride monomer is fit for preparation of polyimide materials with good heat resistance and dissolubility. |
| priorityDate | 2008-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID163481915 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID465043630 |
Total number of triples: 17.