| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_97b77073cf9139a67812934cf5f250c1 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10C1-19 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C3-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C3-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C1-19 |
| filingDate |
1988-03-18^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1991-03-05^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a721e4fba307f02e56f5afc0eb00fe8b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42677b099b99b41e3c63bee38d77251d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4ae843c7a2c246e9adcc58887e8ad653 |
| publicationDate |
1991-03-05^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4997542-A |
| titleOfInvention |
Impregnation pitch with improved filterability and process for its manufacture |
| abstract |
An impregnation pitch having a Kraemer-Sarnow softening point ranging from about 60 DEG C. to 80 DEG C., a content of quinoline-insoluble substances less than or equal to 7% by weight, and a filterability index greater than or equal to 4.5. A process for the manufacture thereof, wherein a tar or a pitch having a Kraemer-Sarnow softening point not exceeding 60 DEG C. and a content of quinoline-insoluble substances below or equal to 7% by weight is subjected to a thermal treatment capable of removing constituents with a molecular mass of below 1,200. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2015251911-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5695631-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5326457-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10308511-B2 |
| priorityDate |
1987-03-20^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |