| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0da514dce3b5fb36df6ca4d9dcceacdf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dffb69da261d6e79f907a0d2c996f572 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-143
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2375-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2101-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29B2017-0468
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2207-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D17-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J11-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29B17-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-3203
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L75-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J11-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J11-04 |
| filingDate |
2009-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b3bcd17b4db3a3cedef600542c1f8725
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_45c4fb51a7e5f20fa8ffc7393cf73819 |
| publicationDate |
2009-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20090089269-A |
| titleOfInvention |
Polyol Separation and Recovery Method from Polyurethane Waste |
| abstract |
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for recycling polyurethane waste, and more particularly, to a method for preparing a polyurethane foam using the same, by separating waste polyurethane powder into a polyol by glycol-depolymerization. The present invention is to modify the method for producing a regenerated polyol by a glycol-depolymerization reaction of a polyurethane, which is conventionally performed, to easily and efficiently obtain separation of a regenerated polyol, and to provide a glycol, a specific catalyst and a solvent to the waste polyurethane powder. The present invention relates to a method for separating and obtaining a polyol in a decompression reaction environment in which a mixture is added to depolymerize to be liquefied and sealed without cooling the hot liquid mixture produced by the depolymerization reaction and gradually cooled at room temperature. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101036667-B1 |
| priorityDate |
2008-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |