| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dd76df1c6dc857e63ecd391f6f5b22e3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2230-00 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-1608
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-18 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-06 |
| filingDate |
2020-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2021-10-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_468488ce2c647957b6d29d5595b1e350
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_31bb4e0e7f962707da0f26023b37ac18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e18becfcb750d6c3916b631ccd90eb0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1dcd48820cea46489e88f73a6374171d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0808a4daa6060e588d9050c7d2314369
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_409b4d50770b5bc48ba54062ede78dbd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce4ee11112422624cc556e97343f4873
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d8084aa57b609797f545f7d010660602 |
| publicationDate |
2021-10-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-11136433-B2 |
| titleOfInvention |
Self-healing copolymerized polycarbonate and preparation method therefor |
| abstract |
The invention relates to a self-healing copolymerized polycarbonate and a preparation method thereof. The method comprises the following steps: mixing a reducing sugar, an oxetane derivative and a first catalyst, heating and reacting at 50 to 80° C. for 0.5 to 2 h to obtain the first product; adding a diol, a diester and a second catalyst to the first product, and then heating to 180 to 220° C. for 2 to 4 h to obtain an oligomer; heating the oligomer to 230 to 270° C. and holding at the temperature and reacting for 1 to 3 h to obtain a self-healing copolymerized polycarbonate. The self-healing copolymerized polycarbonate material prepared by the method of the invention has self-healing property and biodegradability, which ensures the consistency and uniformity of the product. In addition, the block introduced into the main chain is green and environmentally friendly, and the original intention of clean production of polycarbonate has not been changed. |
| priorityDate |
2019-03-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |