http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0158981-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1e70c0aeade92d7571d955d3b90ea06e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-2913 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31786 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-183 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-78 |
| classificationIPCInventive | 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/C08F2-00 |
| filingDate | 2000-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c13f2e066f4b0a4bb57ccfb77532957c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7961c454c880219b61214228669ccf7f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_26cf1f6a811f3d29537ae35a790d449f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c1ccca7299a7a3bad7c04b2f2c6bdc18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2daa52096d54dda08c6c09aaacab5aa0 |
| publicationDate | 2001-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-0158981-A1 |
| titleOfInvention | Continuous process for producing poly(trimethylene terephthalate) |
| abstract | A continuous process for the production of poly(trimethylene terephthalate) is disclosed. According to the process, a liquid feed mixture comprising bis-3-hydroxypropyl terephthalate and/or low molecular weight polyesters of 1,3-propanediol and terephthalic acid, the liquid feed mixture having a mole ratio of propylene groups to terephthalate groups of 1.1 to 2.2 is fed to a flasher. A first stream of gaseous by-products is continuously vaporized and removed from the flasher, and a liquid flasher reaction product having a mole ratio of propylene groups to terephthalate groups of less than about 1.5 is continuously withdrawn from the flasher. The liquid flasher reaction product is continuously fed to a prepolymerizer where it is continuously polymerized to form a poly(trimethylene terephthalate) prepolymer and a second stream of gaseous by-products. Poly(trimethylene terephthalate) prepolymer having a relative viscosity of at least about 5 is continuously withdrawn from the prepolymerizer and continuously fed to a final polymerizer, where it is continuously polymerized to form a higher molecular weight poly(trimethylene terephthalate) and a third stream of gaseous by-products. Higher molecular weight poly(trimethylene terephthalate) having a relative viscosity of at least about 17 is continuously withdrawn from the final polymerizer. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2010035931-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7785507-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7785709-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6800718-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100888882-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6509438-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6512080-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6841505-B2 |
| priorityDate | 2000-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 80.