http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2628758-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-247 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-785 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-78 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J19-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-85 |
| filingDate | 2009-04-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a312c85e58156aba0f757b94c7147a4c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5b2c4d382b51a849c89a1ea2771d0b23 |
| publicationDate | 2013-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-2628758-A1 |
| titleOfInvention | Method for the continuous production of biodegradable polyesters |
| abstract | The present invention relates to a process for the continuous production of a biodegradable polyester based on aliphatic or aliphatic and aromatic dicarboxylic acids and aliphatic dihydroxy compounds, wherein a mixture of the aliphatic Dyhydroxyverbindungen, the aliphatic and aromatic dicarboxylic acids and optionally other comonomers (component C), without addition of a catalyst, are mixed to form a paste or alternatively the liquid esters of dicarboxylic acids and the dihydroxy compound and optionally other comonomers, without addition of a catalyst to be fed, being i) in a first stage, this mixture is continuously esterified or transesterified together with the total amount or a partial amount of a titanium catalyst; ii) in a second stage continuously the transesterification or esterification product obtained according to i) in a tower reactor and in cocurrent over a falling film evaporator, wherein the reaction vapors are removed from the reaction mixture in situ up to a viscosity number according to DIN 53728 of 20 to 80 cm 3 / g is precondensed; iii) in a third stage, the product obtainable from ii) is continuously polycondensed to a viscosity number according to DIN 53728 of 100 to 220 cm 3 / g and wherein between stage ii) and iii) the product stream from 0.001 to 0.1 wt .-% a deactivating phosphorus compound is added. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019007522-A1 |
| priorityDate | 2008-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 271.