http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112266456-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_eec19c18115f3b92ff1d1f2ab988f7d5 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-44 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-10 |
| filingDate | 2020-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4647760297880f1818c1c72501b3a1d2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0363e5e3c9da47a281b071f6f48fbde6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_261c500c6ace6ed7f7d4567021f6aef2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c10449d6b72cd746c04d912d6bd7e0c0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_99fb53ea910550b66d1200d9aa41f23b |
| publicationDate | 2021-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112266456-A |
| titleOfInvention | A kind of biodegradable carbon dioxide-based polyurethane elastomer and preparation method thereof |
| abstract | The present invention provides a biodegradable carbon dioxide-based polyurethane elastomer and a preparation method thereof. , 0.1-0.8 parts of antioxidants, 0.2-0.8 parts of sulfonate-containing dihydroxy compounds and 3.5-18 parts of chain extenders. The invention greatly improves the hydrophilicity of the polyurethane elastomer material by introducing a sulfonate with a strong hydrophilic group, enhances its hydrolysis, and greatly improves the biodegradability. The number-average molecular weight of the polyurethane elastomer is 58-82,000, the weight-average molecular weight is 7.6-115,000, the tensile strength is 14-25MPa, and the elongation at break is 650-820%. The composting test showed that the polyurethane elastomer material began to disintegrate after 30 days; after 90 days, the degradation rate exceeded 70%; after 180 days, the degradation rate reached 92%. |
| priorityDate | 2020-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 89.