http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114672066-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d6a6f422b091ba12ea61d4adbf1b0e8e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2375-04 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J11-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J11-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L75-04 |
| filingDate | 2022-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5205da5cc04627125a4a3b8178272d34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2af861e628b0045b3d2fc5a732631d66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6a84c48950d82d967a0f6b0a439f7ce2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_94baf9210f2458319af68895117c844f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7f2bb962d6dc9539a9d818e296013382 |
| publicationDate | 2022-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114672066-A |
| titleOfInvention | A kind of recycling method of polyurethane |
| abstract | The invention discloses a method for recycling polyurethane. The method comprises the following steps: (1) adding an isocyanate blocking agent to the polyurethane, and the recovered product obtained by the reaction comprises the terminal group of which is a blocked isocyanate group, a hydroxyl group and an amine group. The meltable/dissolvable de-crosslinked oligomer; (2) under non-sealed or reduced pressure conditions, heating the recovered product, reacting to form a regenerated product, and simultaneously recovering the isocyanate blocking agent; wherein, the isocyanate blocking agent is selected from: One or more of self-oximes, phenols, alcohols, amines, nitrogen-containing heterocycles, and esters. The method can realize zero reagent consumption, high recovery efficiency, low cost, no need to change existing products and production equipment, and has good economic benefit and social value. |
| priorityDate | 2022-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 53.