http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109666986-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F1-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01D5-088 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01D5-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-92 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-183 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-78 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-92 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01D5-088 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01D5-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-183 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F1-10 |
| filingDate | 2018-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109666986-B |
| titleOfInvention | Easy-to-dye polyester FDY fiber and preparation method thereof |
| abstract | The invention relates to an easy-dyeing polyester FDY fiber and a preparation method thereof, wherein the preparation method comprises the following steps: preparing modified polyester FDY filaments, namely easily-dyed polyester FDY fibers from the modified polyester melt according to an FDY process, wherein the preparation method of the modified polyester comprises the following steps: uniformly mixing terephthalic acid, ethylene glycol, dibasic acid with a tert-butyl side group and solid heteropoly acid powder which is roasted at high temperature, and then carrying out esterification reaction and polycondensation reaction in sequence, wherein the dibasic acid with the tert-butyl side group is 5-tert-butyl-1, 3-phthalic acid, 2-tert-butyl-1, 6-hexanedicarboxylic acid, 3-tert-butyl-1, 6-hexanedicarboxylic acid or 2, 5-di-tert-butyl-1, 6-hexanedicarboxylic acid. The dye uptake of the prepared product at the temperature of 120 ℃ is 87.7-92.2%, and the K/S value is 22.54-25.87. The preparation method is simple and low in cost, improves the hydrolysis rate of the polyester, and improves the dyeing performance of the polyester fiber. |
| priorityDate | 2018-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 71.