http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3943525-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_696ca0ae93d5cf5a686273601361781f |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-80 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-0266 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L83-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-1666 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L69-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-041 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-4006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-448 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-085 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-305 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-34 |
| filingDate | 2020-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_650e65a95c2ffa4f23ebc1428894352b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5c29492f41b8f8675744fb8a902b692c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_794a09716621253766879219be489ce4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7adbe66fdc0119eea2850a6d7e2000f3 |
| publicationDate | 2022-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-3943525-A1 |
| titleOfInvention | Methods for producing polycarbonate copolymer and polysiloxane compound, polycarbonate copolymer, polysiloxane compound, composition and molded body |
| abstract | The present invention addresses the problem of providing a method for efficiently producing a polycarbonate copolymer which has siloxane constituent units and exhibits excellent impact resistance and high fluidity when molten; a method for efficiently producing a polycarbonate copolymer or a polysiloxane compound, in which by-products having a high environmental load, such as acids, are not produced, and which can be carried out without using a solvent, and especially without using a solvent that causes safety concerns; and a polysiloxane compound. The abovementioned problem can be solved by means of a method for producing a polycarbonate copolymer which has siloxane constituent units represented by any of formulae (1-1) to (1-4) and prescribed polycarbonate constituent units, the method having a polymerization step for polymerizing a silane-based compound selected from among a prescribed diaryloxysilane compound, a prescribed dialkoxysilane compound and a prescribed silicon compound, a carbonate compound and a diol compound such as an aromatic diol compound or an alicyclic diol compound in the presence of a transesterification catalyst. The polymerization step is carried out in a molten state under reduced pressure while removing alcohols derived from the carbonate compound. (In the formulae, R<sup>1</sup> to R<sup>10</sup>, R<sup>30</sup> to R<sup>33</sup>, Z<sub>1</sub>, Z<sub>2</sub>, J<sub>1</sub>, K<sub>1</sub>, A<sub>1</sub>, A<sub>2</sub>, L<sub>1</sub>, L<sub>2</sub> and X are as described in the description of the present application.) |
| priorityDate | 2019-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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