http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2268699-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-87 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-85 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/C08K5-49 |
| filingDate | 2009-03-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2011-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e40cdcc56eb1de3c90bf24d5e7ac35fb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_011696adbd7a893759df91edfde09156 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e3ac376f3ce0714ed79d4a27cc923df http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8ae23d9da68e70a2fd38a46ac2dfc31a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_568abfac5ec60604cdf6c0255c65c037 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f0c2378e456c326537bed4237d169362 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2d91250808862ec843710cc76d9e6be4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd63252f52cc8c4cd7994d954e06cff3 |
| publicationDate | 2011-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-2268699-B1 |
| titleOfInvention | Solid state polymerization process for polyester with phosphinic acid compounds |
| abstract | Disclosed is a method for increasing the solid state polymerization (SSP) rates of metal catalyzed polyesters. The method comprises in a first step, reacting a dicarboxylic acid or a C 1 -C 4 dicarboxylic diester with a diol at a suitable temperature and pressure to effect esterification or transesterification to prepare a precondensate and in a second step, reacting the precondensate to effect polycondensation at a suitable temperature and pressure to prepare a high molecular weight polyester and in a third step, further increasing the molecular weight and viscosity of the polyester under SSP conditions of a suitable temperature and pressure, where a metal catalyst is added in the first step or in the second step as a reaction catalyst, and where a certain phosphinic acid compound is added in the first step, in the second step or just prior to the third step. The polyester product exhibits low aldehyde formation during melt processing steps as well as excellent color. |
| priorityDate | 2008-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 496.