| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b2aa5698d92cb83174b9e17203add558
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f348596c49108e70df9c1d4147083c84
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f83e2334f8ce4ce209c7b7436e815de6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_343b42a27e1260e14bb85a0569e9fa34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ce30c5f2bdc9672584d6674e45cf87da
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7f4aaff43a1271df4befa8b8e88f1e91 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-866
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-80 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-181 |
| filingDate |
2008-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_142a42717ea0d2de313156d9605265f6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d409c6a9eae1c2d6d71ebad690248301
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be3b9cc1a2460a0b3af7767d358ce397
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_801f65c921c6e17e3e4fbf101a97b3ec
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_db9cf7a93b9ebcf8839dddff3f12aab3 |
| publicationDate |
2009-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2009087651-A2 |
| titleOfInvention |
An improved solid-state polymerization process for the production of high molecular weight polyethylene terephthalate |
| abstract |
The invention relates to an improved process for polyester synthesis, the process comprising first reacting a dicarboxylic acid and a polyol at a temperature in the range of 250 to 290 °C to obtain an ester oligomer, then reacting the oligomer in the molten state at a temperature in the range of 260 to 300 °C with 0.01 to 10 percentage by weight of at least one alkyl substituted 1,3- propane diol resulting in a prepolymer having intrinsic viscosity up to 0.65 dl/g and finally reacting the prepolymer in the solid state at a temperature in the range of 200 to 240 °C, under an inert atmosphere. The invention also relates to the polyester resin to the compositions containing the resin and to the shaped articles prepared from the composition. |
| priorityDate |
2007-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |