| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D10B2331-02 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-605
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01D5-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01D5-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01D5-253
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01D5-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01D5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-60 |
| filingDate |
2016-12-22^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2021-02-09^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2021-02-09^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-108368645-B |
| titleOfInvention |
Double-end-capped polyamides for high-speed spinning applications |
| abstract |
The present invention provides a process for producing polyamide filaments and fibers. The method includes providing a double-ended polyamide and spinning the double-ended polyamide at a speed of 3500 m/min to 8000 m/min to form a fiber. In one embodiment, the polyamide has an amine end group concentration of 25 mmol/kg to 40 mmol/kg and a carboxyl end group concentration of 18 mmol/kg to 50 mmol/kg. Fibers and yarns comprising the polyamide filaments and fibers formed by the process are also disclosed. |
| priorityDate |
2015-12-23^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |