http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103255491-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0cb011d981829bdcc85a40133a181da8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-78 |
| filingDate | 2013-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_61bc7fc27bcff045aed733ddc75df2bb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d0d395c5de630cdf8e9d4e2dc219eda9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7c0eb1471f5a6d7544de7594de37f50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c12f165eb7373f9d7a43144e2ac0260 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3b3fbe1cab66d7f669a3ed90f1a47647 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_df91050debd00fdc569c87787049fd69 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f4573b75d3bea8c0fca2b53d869fec07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b2afd3193ab5bd78142aff9f5dabd5d1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1f28b66c6cae2cc7090ad9103fefb5ab |
| publicationDate | 2015-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103255491-B |
| titleOfInvention | Preparation method of polyimide fibers |
| abstract | The invention provides a preparation method of polyimide fibers, which comprises the following steps: polymerizing monomer dianhydride and monomer diamine to obtain a polyamic acid solution; mixing a photostabilizer solution the polyamic acid solution to obtain a polyamic acid spinning stock solution; spinning the polyamic acid spinning stock solution to obtain polyamic acid fibers; imidizing the polyamic acid fibers to obtain polyimide nascent fibers; and carrying out hot drawing on the polyimide nascent fibers to obtain polyimide fibers, wherein the monomer dianhydride is a mixture of at least one of structures disclosed as Formula (I) and Formula (II) and at least one of structures disclosed as Formula (III) and Formula (IV), and the monomer diamine is selected from one or more of structures disclosed as Formula (V) and Formula (VI). By selecting the dianhydride and diamine, the obtained polyimide fibers have high strength and high modulus; and furthermore, after the polymerization of the monomer dianhydride and monomer diamine, the photostabilizer is added to obtain the polyimide fibers with favorable ultraviolet resistance. |
| priorityDate | 2013-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 53.