| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af7c9c966acd2ef7eca105d82d8d0991 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-78 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 |
| filingDate |
1976-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1977-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1519dbb5c79258b5b46f5b918d1f5e33 |
| publicationDate |
1977-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4049635-A |
| titleOfInvention |
Production of tetramethylene terephthalate polymers using 225° to 248° C. polycondensation temperature |
| abstract |
1,4-Butanediol and a dialkyl benzenedicarboxylate such as dimethyl terephthalate are subjected to transesterification conditions and thereafter to polycondensation in the presence of a tetraalkyl titanate catalyst at a temperature within the range of 225 DEG to 248 DEG C. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4260735-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6353062-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5015759-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4163002-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003220465-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4785060-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6538076-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4143094-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6350895-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7132484-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005165178-A1 |
| priorityDate |
1976-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |