| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_78ca80ad4b743c901ec136b21263f093 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-183
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-181
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-189
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-85
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0212 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-82 |
| filingDate |
2018-07-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_21d162b7fb40575e692ec1b2c3e2d337
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8f6e86fd20c9bdf980777c508921fa7c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5ff55f4a26f64bd677f921d8bf490ac9 |
| publicationDate |
2019-01-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2019011816-A1 |
| titleOfInvention |
PROCESS FOR PRODUCING BIS-HYDROXYALKYLENE DICARBOXYLATES |
| abstract |
The present invention relates to a process for producing bis-hydroxyalkylene dicarboxylates comprising steps in the following order: (a) supplying to a reaction vessel a reaction mixture comprising a dicarboxylic acid or a diester thereof and an alkylene diol; (b) providing an amount of a catalyst to the reaction mixture; and (c) reacting the reaction mixture at a temperature in the range of ≥ 180 to ≤ 280 ° C, the catalyst being a compound of formula (I): wherein R 1 is an alkyl moiety of 2 to 10 atoms of carbon and n represents an integer ≥ 2. The process according to the present invention leads to a reduction of the reaction time. The catalyst according to the invention has a higher hydrolytic stability, and is therefore more resistant to the loss of catalytic activity which results from the formation of water as a by-product during the reaction of the dicarboxylic acid and the diol alkylene. |
| priorityDate |
2017-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |