| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e97f714de4a62e2053d23f6900a1fda |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S525-906
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2261-126 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L81-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G75-23
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G75-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L53-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L53-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F297-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F293-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L53-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F297-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L81-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F293-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L81-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-23
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-20 |
| filingDate |
2005-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bdca83af719869bbd762410ad794a29e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aa09366777f51698874614b9984b5c2b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f5a20b92aeb3ff89126c5748b4df5ec9 |
| publicationDate |
2012-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20120066074-A |
| titleOfInvention |
Improved process for preparing block copolymers and block copolymers prepared therefrom |
| abstract |
The present invention relates to a process for preparing block copolymers comprising two or more types of homoblocks belonging to the polysulfone class and to block copolymers prepared therefrom, wherein each of the homoblocks has the same or different molecular weight of at least about 1000. And at least 3% of the total weight of the block copolymer, wherein the block copolymer has a molecular weight of at least about 2000, and the process comprises one or more aromatic diols or aromatic dialkoxide compounds and one or more aromatic dihalo compounds (of which Each containing one or more sulfone groups) in one or more aprotic solvents in the presence of one or more alkalis, optionally in the presence of an azeotropic agent to produce each of the aforementioned homoblocks, and then in one or more aprotic solvents. After reacting the homologous block described above together, optionally The polymer end-capping involves. The present invention also relates to block copolymers themselves which are useful in molding, extrusion and also as compatibilizers for their high molecular weight homologs. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20160025439-A |
| priorityDate |
2004-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |