| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_efbc93fa15ca59046e84ca5c5c84c433 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2663
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2615 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L75-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2615
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2663 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-66 |
| filingDate |
2019-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_acc339685a319b0a8864638d06561b1a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c63126edfd9b388a1bb454bb58416c18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e994ae316090822245d538d3e3157465
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd4ec3426da097acb6cfd2b5ee8632ad |
| publicationDate |
2021-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-3898765-A1 |
| titleOfInvention |
Method for producing a polyester-polyetherpolyol block copolymer |
| abstract |
The invention relates to a method for producing a polyester-polyetherpolyol block copolymer by reacting a H-functional starter substance with lactone in the presence of a catalyst to form a polyester and subsequently the reaction of the polyester from step i) with alkylene oxides in the presence of a catalyst (B), wherein the lactone is a four-membered lactone. The invention also relates to the polyester-polyetherpolyol block copolymer that can be obtained from the present method. |
| priorityDate |
2018-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |