http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1240944-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ec6419ed66bc44e05ded467f03ec72e1 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10C3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F9-145 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F9-322 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-025 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F9-145 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F9-32 |
| filingDate | 1984-05-11^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1988-08-23^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c392b7176967ef340282a264fa257f3c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce6284205a9aaf76eae6f76bad27a2f4 |
| publicationDate | 1988-08-23^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1240944-A |
| titleOfInvention | Membrane separation of unconverted carbon fiber precursors from flux solvent and/or anti-solvent |
| abstract | ABSTRACT OF THE DISCLOSURE Flux solvents and/or pitch neomesophase anti-solvents used in the generation of carbon fiber precursors from pitch are separated from mixtures of such solvent and unconverted carbon fiber precursors by contacting said mixtures with asymmetric hydrophobic membranes under conditions of reverse osmosis. The membranes used in this separation are asymmetric polyi-mide membranes and asymmetric polyvinylidene fluoride membranes. Separation conditions include a contacting pressure sufficient to overcome the osmotic pressure of the solvent. The pressure is typically about 300 to 1000 psi. Contacting temperature is about 0 to 100°C, preferably about 20 to 80°C. The membrane of choice is an asymmetric polyimide membrane. |
| priorityDate | 1984-04-27^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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