http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H01268788-A
Outgoing Links
Predicate | Object |
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assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_325e8f74339359cd24e45eb790ace68f |
classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C3-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F9-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F9-155 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F9-15 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C3-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C3-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C3-10 |
filingDate | 1988-04-20^^<http://www.w3.org/2001/XMLSchema#date> |
inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d53b39ec52c4fde5439e7df8c0750555 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a6d781cbd50cf440325508b8ffd44259 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a5ef853fa4872aafa25bff8b7482fb6b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fac0a3f06ede2bb9e126a266ef5da109 |
publicationDate | 1989-10-26^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | JP-H01268788-A |
titleOfInvention | Production of mesophase pitch for carbon fiber |
abstract | PURPOSE: To obtain the title mesophase pitch suitable as a raw material for carbon fiber with high tenacity and high elastic modulus, by putting a tarry material to solvent extraction treatment followed by subjecting the resulting extract to heat treatment process. n CONSTITUTION: Firstly, a carbonaceous material produced from petroleum or coal is put to vacuum distillation to remove a low-boiling fraction to obtain a tarry material containing component(s) ≥400°C in boiling point. Thence, said tarry material is put to extraction treatment using an organic solvent for aromatic fraction extraction, and the resulting extract is heat-treated to produce a pitch ca 20-80wt.% in mesophase content. This pitch is then subjected to, in a molten state, a separating operation based on specific gravity difference to separate into mesophase pitch component and nonmesophase pitch component, thus obtaining the objective mesophase pitch. n COPYRIGHT: (C)1989,JPO&Japio |
priorityDate | 1988-04-20^^<http://www.w3.org/2001/XMLSchema#date> |
type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Predicate | Subject |
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isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID297 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419559581 |
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