http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6720467-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_956690057dff4a8ee7946a67ec279034 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2325-06 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J11-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29B17-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J11-08 |
| filingDate | 2001-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2004-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6bb656517b02086c2923f115f6dc37f7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8515d4a749be79c766c382fa6ece053d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_810525c03bc8f6599a0ff5bd86c32a3c |
| publicationDate | 2004-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-6720467-B2 |
| titleOfInvention | Polystyrene reclamation process |
| abstract | This disclosure concerns a process and apparatus for reclamation of waste polystyrene-type materials for reuse within the specification ranges of the input polystyrene-type material. The disclosed process and apparatus include dissolution of the waste polystyrene-type materials in a dissolve section utilizing a reusable solvent having a low boiling point and high vaporization rate, removal of solid contaminants in one or more filter sections, devolatilization of the dissolved polystyrene and recovery of the polystyrene-type material in a solid form in a recovery section. Preferably the process and apparatus provide a closed system and include recycling and reuse in the process of the vaporized solvent. The maximum temperature in the recovery section is 190° C. The reusable solvent is preferably environmentally safe and has a low boiling point and high vaporization rate. n-Propyl bromide, or environmentally safe mixtures thereof, including mixtures with isopropyl alcohol, is the preferred reusable solvent. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006089487-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7696305-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007225479-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007191500-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006162242-A1 |
| priorityDate | 2000-10-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 84.