http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3670557-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_387abf6afc9a2cd5cfa5cd4d35f8b9fe |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L75-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4277 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-823 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-664 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4269 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-42 |
| filingDate | 2018-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-3670557-A1 |
| titleOfInvention | Method for producing a polyoxyalkylenpolyesterpolyol |
| abstract | The invention relates to a process for the preparation of a polyoxyalkylene polyester polyol by reacting a polyoxyalkylene polyol with a lactone in the presence of a Bronsted acid catalyst, the catalyst having a pK a of 1 or less, the number-average molar mass of the polyoxyalkylene polyol being ≥ 1000 g / mol, preferably ≥ 1500 g / mol, particularly preferably 2000 2000 g / mol, and a CH 2 group in the lactone being bonded to the ring oxygen. Another subject is polyoxyalkylene polyester polyols obtainable by the process according to the invention and a process for producing polyurethanes by reacting the polyoxyalkylene polyester polyols according to the invention with polyisocyanates. |
| priorityDate | 2018-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 261.