| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_94506f5ef738233c7ba97174c00dd1fc |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-0025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2207-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2205-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2375-04 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-3225
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L75-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J11-12 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G101-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J11-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L75-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-32 |
| filingDate |
2019-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0da46fa1e163e828411c31fe051882fd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dec7ece1b683bc645eb092f3ef499aa3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f495f3e46f13401c960dc37dcc33dfdc |
| publicationDate |
2020-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2020080619-A1 |
| titleOfInvention |
Method for manufacturing hard polyurethane by recycling polyurethane foam scraps |
| abstract |
The present invention provides a method for manufacturing a hard polyurethane foam. The present invention obtains a recycled polyol by collecting waste hard polyurethane foam and treating same through depolymerization method, and obtains mixed polyols by mixing a new polyol and the recycled polyol in a ratio of 40-60 : 60-40 by weight, mixes 6-12 parts by weight of an imine polyol on the basis of 100 parts by weight of the mixed polyols, and then injects additives and an isocyanate material through a normal method, thereby carrying out a urethane reaction. The present invention uses the reaction heat generated in the urethane reaction, and can control the final thickness of a urethane foam product, which is to be finally obtained, by lowering, through an imine polyol to be double decomposed at a high reaction temperature, foaming pressure to be excessively generated in the urethane reaction. |
| priorityDate |
2018-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |