http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S63221195-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ed685e2ee8d82a99295e1615c0c00233 |
| classificationIPCInventive | 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/C10C3-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C3-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C3-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C3-04 |
| filingDate | 1987-03-10^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_080cf95e4a69367e910ca3929c9eb4fe |
| publicationDate | 1988-09-14^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S63221195-A |
| titleOfInvention | Production of carbon fiber and carbon-carbon composite material using particular component in petroleum pitch as raw material |
| abstract | PURPOSE: To prepare the title matrix which does not bring about breakage of a filament, by allowing mesophases in non-mesopitch prepd. from petroleum pitch to fuse and glow into a large size. n CONSTITUTION: Petroleum pitch obtained as a by-product of thermal catalytic cracking of a desulfurized vacuum gas oil is distilled in vacuo to obtain a 85%-cut fraction. A fraction ranging from an initial b.p. of 460°C to an end point of 560°C is extracted to separate it into a component (H) extractable with a 6W8C aliph. hydrocarbon and a component (B) extractable with an arom. hydrocarbon. A non-oxidizing gas is blown into component B and, at the same time, heated with stirring at 380W420°C for 2W10hr to prepare pitch containing 5W15% mesophase. The pitch is then heated at 300W350°C for 10W30hr in a non-oxidizing gas stream to allow mesophases to fuse and grow into a large size, and the non-mesopitch constituting the upper layer is separated from the mesophase pitch constituting the lower layer by the difference of specific gravity. The non-mesopitch is heated at 380W420°C for 2W6hr to prepare pitch containing 20W30% mesophase. The pitch thus prepd. is aged at 300W350°C for 10W30hr to allow mesophases to fuse and grow into a large size, followed by separation and recovery thereof. n COPYRIGHT: (C)1988,JPO&Japio |
| priorityDate | 1987-03-10^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID444749 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID456199022 |
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