http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2177240-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f6e960aa6ad2ba6401030159343ebe68 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-265 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-28 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-26 |
| filingDate | 1996-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3f7060e0466310b124055372bbf08688 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_40fa5c43a9d55093f1590faa7688129d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b745f874c5b4e3b50650755a0ab3f0df |
| publicationDate | 1996-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2177240-A1 |
| titleOfInvention | Production of aromatic polyamide |
| abstract | A process for producing an aromatic polyamide which comprises: (a) a dicarboxylic acid component which consists of 30-100 mol% of terephthalic acid and optionally 0-70 mol% of at least one dicarboxylic acid other than terephthalic acid, and (b) a diamine component which consists of 50-100 mol% of an aliphatic alkylenediamine of 4-25 carbons and optionally 0-50 mol% of at least one alicyclic diamine of 3-25 carbons, said process comprising a first step of performing melt reaction of said dicarboxylic acid with said diamine, thereby giving a low molecular weight condensate having an intrinsic viscosity [?] of 0.05-0.6 dl/g, a second step of subjecting it to solid phase polymerization, thereby giving an aromatic polyamide precursor having an intrinsic viscosity [?] of 0.5-1.0 dl/g, and a third step of subjecting it to melt polymerization, thereby giving an aromatic polyamide having a desired intrinsic viscosity [?] of 0.8-2.5 dl/g. This process permits the industrial production of high molecular weight aromatic polyamides in an economical and efficient manner. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2022025116-A1 |
| priorityDate | 1995-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 181.