| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-83
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-03 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-83
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-82 |
| filingDate |
1976-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1977-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a4131b13ffb488ed06b74ea2d189fa57
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_82d6b53db7a40de65c9c54b5eef149fe |
| publicationDate |
1977-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4057534-A |
| titleOfInvention |
Method for preventing scale formation in a continuous ester-interchange reaction for production of polyesters |
| abstract |
Scale formation in a continuous ester-interchange reaction for the production of polyesters, is prevented by subjecting a dialkyl ester of a difunctional carboxylic acid at least 80 mole% of which consists of terephthalic acid and at least one glycol to a continuous ester-interchange reaction catalyst in the presence of a catalytic amount of an ester-interchange reaction catalyst composed of a manganese compound and a lithium compound, the amount of said ester-interchange reaction catalyst being the one which meets the following expressions (i) and (ii) (I) 0.015<X + Y<0. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0437333-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0447110-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0447110-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0437333-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0425215-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0425215-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4154921-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0297525-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2405237-A1 |
| priorityDate |
1975-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |