http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2021155753-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e01790cf0feff2b72b51a52cd9012dfd |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-36 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-16 |
| filingDate | 2018-06-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_254649e7c8337fbf14dce7e799cf722c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4b53a4dae495bdfebea0870bcc883acf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ba38c64286b9b1a40b132ca85ca836b1 |
| publicationDate | 2021-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2021155753-A1 |
| titleOfInvention | Process for polymerizing cyclic oligomers of polyamides |
| abstract | A process for production of high molecular weight polyamide polymers, such as 6/66 copolymers, using a reactant stream that includes at least one lactam and cyclic oligomers. The stream is reacted with at least one diamine at an elevated temperature to ring-open the cyclic oligomers to produce amide pre-polymers that are end-capped with amine groups. The pre-polymers are then reacted with at least one diacid at an elevated temperature to form polyamide 6/66 copolymers. The cyclic oligomers may be formed as by-products during standard polymerization of polyamide polymers from monomers such as caprolactam, hexamethylene diamine and adipic acid. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115215758-A |
| priorityDate | 2017-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 70.