http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20120135971-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_aa385a1debd3dcd4145ca142ee094e52 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-143 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-62 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J11-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L75-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29B17-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29B17-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L75-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J11-04 |
| filingDate | 2011-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4b943a1198277f333981cf0d9aba5fe2 |
| publicationDate | 2012-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20120135971-A |
| titleOfInvention | Polyol Regeneration Method for Preparing Polyurethanes with Excellent Physical Properties |
| abstract | The present invention relates to a polyol regeneration method for producing a polyurethane having excellent physical properties, the first step of preparing a waste polyurethane scrap; A second step of preparing 45 to 100 parts by weight of propylene oxide adduct and 0.01 to 30 parts by weight of glycol with respect to 100 parts by weight of the waste polyurethane scrap; A third step of adding the prepared propylene oxide adduct and glycol to a reactor and stirring the mixture; A fourth step of injecting 0.1 to 30 parts by weight of ammonia with respect to 100 parts by weight of the glycol in the reactor under an environment of 3 to 17 atmospheres after the temperature is raised to 100 to 230 ° C; A fifth step of regenerating the polyol by injecting the waste polyurethane scrap into the reactor in which the ammonia is injected to generate bubbles and reacting for 1 to 15 minutes; And a sixth step of controlling the reaction temperature to maintain 65 ° C to 75 ° C after mixing the regenerated polyol and propylene oxide. According to the present invention, a polyol capable of producing a polyurethane having excellent physical properties is regenerated. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20210059994-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-102572673-B1 |
| priorityDate | 2011-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.