| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a06d66365c858509215548c1a46edcba |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2379-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2250-00 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-093
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-095
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-11
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1053
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1071 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 |
| filingDate |
2020-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_29a0263bc1fce792c2ab17629bdfab32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f867433e282e8aaf4a77455826e269f9 |
| publicationDate |
2022-05-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2022162387-A1 |
| titleOfInvention |
Method of forming semicrystalline polyetherimide, and polyetherimidecontaining composition |
| abstract |
In a method of forming a semicrystalline polyetherimide, a solvent mixture is combined with an amorphous polyetherimide in a weight ratio of 1:1 to 50:1, respectively, to form a first dispersion. The solvent mixture includes dichloromethane and a C1-C6 alkanol in a weight ratio of 0.5:1 to 15:1, respectively. The first dispersion is agitated to form a second dispersion containing a semicrystalline polyetherimide, and the semicrystalline polyetherimide is isolated from the second dispersion. The isolated semicrystalline polyetherimide exhibits a melting point in a range of 230 to 300° C. Also described is a composition that includes a polyetherimide, dichloromethane, and a C1-C6 alkanol in specific ratios. |
| priorityDate |
2019-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |