http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2006138406-A3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d648658dd620f548c24de39659a5e9e3 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29B9-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29B2009-168 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29B2009-165 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29B9-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29B9-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-866 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-89 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-88 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00 |
| filingDate | 2006-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6ed27b2f0976ca16ecf63148ad41f896 |
| publicationDate | 2007-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2006138406-A3 |
| titleOfInvention | High intrinsic viscosity melt phase polyester polymers with acceptable acetaldehyde generation rates |
| abstract | A method for the production of solid polyester polymer particles comprising: a) polycondensing a molten polyester polymer composition in the presence of a polycondensation catalyst composition comprising antimony species; b) continuing the polycondensation of the molten polyester polymer composition to an It.V. of 0.68 dL/g or more; and c) after reaching an It.V. of 0.68 dL/g or more, adding a catalyst stabilizer or deactivator to the polymer melt; and d) after reaching an It.V. of 0.68 dl_/g or more, solidifying the melt into solid polyester polymer particles which do not contain organic acetaldehyde scavengers. In a further embodiment, after solidification of the polyester from the melt phase polycondensation process: e) the amount of residual acetaldehyde in the particles in the solid state is reduced to a level of 10 ppm or less without increasing the It.V. of the particles by more than 0.03 dl_/g. Such particles having an AA (acetaldehyde) generation rate of 20 ppm or less upon being melted after solidification following the melt phase production and a free AA level reduced after melt phase production to 10 ppm or less are introduced into a melt processing zone to make articles such as bottle preforms having acceptable levels of residual AA. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8901272-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8987408-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8557950-B2 |
| priorityDate | 2005-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.