| 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 |
1996-05-24-04:00^^<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 |
1996-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0744431-A2 |
| titleOfInvention |
Production of aromatic polyamide |
| abstract |
A process for producing an aromatic polyamide which comprises:n (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 [η] 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 [η] 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 [η] of 0.8-2.5 dl/g. n 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/WO-9961509-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6133406-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8338561-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-1116341-C
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2007071790-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0916687-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0976774-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0976774-A2 |
| priorityDate |
1995-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |