| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-32 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-32 |
| filingDate |
1969-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1972-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f9e543737b4d15de62093a5d23da0394
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1aac14e70dce7a6bf2681a690b91378e |
| publicationDate |
1972-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3640970-A |
| titleOfInvention |
Process for preparation of polyamides |
| abstract |
A PROCESS FOR PREPARATION OF POLYAMIDES WHICH COMPRISES REACTING SUBSTANTIALLY EQUIMOLAR AMOUNTS OF AT LEAST ONE DIAMINE AND A DIHALIDE OF A LEAST ONE DICARBOXYLIC ACID AND IN AN INERT, NON-BASIC ORGANIC MEDIUM TO FORM A PRE-CONDENSATE, AND THEREAFTER CONTACTING SAID PRE-CONDENSATE IN SAID MEDIUM WITH AN AQUEOUS SOLUTION OF A WATER-SOLUBLE ACID ACCEPTOR. THUS HIGH MOLECULAR-WEIGHT AROMATIC POLYAMIDES SUITABLE FOR HIGH TEMPERATURE USES INCLUDING CO-POLYAMIDES HAVING EITHER RANDOM OR BLOCK STRUCTURE CAN BY OBTAINED WITH PRACTICAL EASINESS EVEN IN LARGE SCALE OPERATIONS. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2524366-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2471983-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3872055-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2013085237-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7009028-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4885356-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4009154-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0041371-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0041371-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4536533-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2708848-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004230027-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2756605-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103113576-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103113576-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4118374-A |
| priorityDate |
1968-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |