| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_78ca80ad4b743c901ec136b21263f093 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-85
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-183 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-85
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-183
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-02 |
| filingDate |
2015-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2019-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b5a978f33fb4f32663253d0caa4767fe
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5ff55f4a26f64bd677f921d8bf490ac9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_522c8359b33e2d7e924ca7466806eafd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_16be4ca37a199bbb5a60bf48fe5937e8 |
| publicationDate |
2019-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-10233282-B2 |
| titleOfInvention |
Process for making polybutylene terephthalate oligomers |
| abstract |
A process for making oligomers of polybutylene terephthalate (PBT) with desirable intrinsic viscosity and carboxylic end group concentrations includes combining 1.4-butane diol (BDO). terephthalic acid and a catalyst to from a mixture and heating the mixture until the clearing point is reached based on visual inspection. The PBT oligomers are used in a continuous process for making polybutylene terephthalate (PBT) resin. |
| priorityDate |
2014-08-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |