http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2219377-T3
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/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-183 |
| 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> |
| grantDate | 2004-12-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2daa52096d54dda08c6c09aaacab5aa0 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_7961c454c880219b61214228669ccf7f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c13f2e066f4b0a4bb57ccfb77532957c |
| publicationDate | 2004-12-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-2219377-T3 |
| titleOfInvention | CONTINUOUS PROCESS FOR THE PRODUCTION OF POLI (TRIMETHYLENE TEREFTALATE). |
| abstract | Continuous process that is for the production of poly (trimethylene terephthalate) and comprises the steps of: (a) continuously providing a liquid feed mixture to a rapid vaporization boiler, the liquid feed mixture comprising a catalyst and at least one of the members of the group consisting of bis-3-hydroxypropyl terephthalate and low molecular weight polyesters containing propylene groups and terephthalate groups, and the liquid feed mixture having a molar ratio of propylene groups to terephthalate groups of 1, 1 to 2 , two; (b) continuously vaporize the by-products in the rapid vaporization boiler and remove them from the rapid vaporization boiler in the form of a first stream of gaseous by-products, and continuously withdraw a liquid reaction product in the vaporization boiler from the rapid vaporization boiler fast having a molar ratio of propylene groups to terephthalate groups of less than about 1.5; (c) continuously providing the liquid reaction product in the rapid vaporization boiler to a prepolymer, and continuously polymerizing the reaction product of the rapid vaporization boiler in the prepolymerizer to form a poly (trimethylene terephthalate) prepolymer and a second gas by-product stream; (d) continuously remove from the prepolymerizer the poly (trimethylene terephthalate) prepolymer, the prepolymer having a relative viscosity of at least about 5; (e) continuously providing the poly (trimethylene terephthalate) prepolymer to a final polymerizer, and continuously polymerizing the poly (trimethylene terephthalate) prepolymer in the final polymerizer to form a higher molecular weight poly (trimethylene terephthalate) and a third stream of gaseous byproducts; and (f) continuously removing the highest molecular weight poly (trimethylene terephthalate) from the final polymerizer, having the highest molecular weight poly (trimethylene terephthalate) having a relative viscosity of at least about 17. |
| 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: 51.