http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-I248453-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bc905cbef116a1ec61d12125af9427f3 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L77-10 |
| filingDate | 2000-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2006-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e69c53e99f7231dec5eadcba4539ebd3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b7dfaa193da6907c46c7b311d25f8963 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ab8f4a517eaf4365ed7b241705ca502e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d515a5eec780c1d75f9d5e1ebe2304e4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f5b83fc8b2e5684c447dd535226577a9 |
| publicationDate | 2006-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | TW-I248453-B |
| titleOfInvention | Preparing method of aromatic polyamide |
| abstract | This invention provides a method for preparation of aromatic polyamide by utilizing high temperature polymerization and low temperature polymerization. React aromatic diacid and aromatic diamine at high temperatures of 90 DEG C to 170 DEG C, and the polyamide oligomer with its two ends as amino groups can be obtained. And then polymerize such polyamide oligomer with two amino ends and a small amount of aromatic di-acyl acid halogen (less than 30 wt% of former technology) and the aromatic polyamide with high molecular weight can be obtained. By using the method of this invention, the usage quantity of aromatic di-acyl acid halogen can be substantially decreased. Therefore the usage quantity of toxic compounds containing chloride like chloride (Cl2) or SOCl2 can be avoided and the influence on environment can be reduced. And the aromatic polyamide with stable high molecular weight can still be obtained. |
| priorityDate | 2000-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 55.