| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_efbc93fa15ca59046e84ca5c5c84c433 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L75-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-823 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-87
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-08 |
| filingDate |
2019-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ec3c6eee4ca93612bddc82da47c4f1c3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aff5f83cacdf20dd16d3950a82db965b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_acc339685a319b0a8864638d06561b1a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bf9728ffb683da4f1265446db99b757c |
| publicationDate |
2020-06-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2020127008-A1 |
| titleOfInvention |
Process for preparing a polyester using a 4-membered ring lactone |
| abstract |
The invention provides a process for preparing polyesters by reacting an H-functional starter substance with a lactone in the presence of a Brønsted-acidic catalyst which comprises initially charging the H-functional starter substance and the Brønsted-acidic catalyst to form a mixture i) and subsequently adding the lactone to the mixture i), wherein the process is carried out without adding an aromatic solvent and wherein the H-functional starter substance is an OH-functional starter substance and/or a COOH-functional starter substance and wherein the lactone is a 4-membered ring lactone. The invention further provides polyesters obtainable by the method of the invention. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2023009791-A1 |
| priorityDate |
2018-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |