| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9d96b35f9e0569a125439dc5d6b3b7e4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_abfc98dbda4bb7d222385c46cbaa0bb0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_38399a3e6f3d6cc5085c162bbee7607b |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E30-30 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G21F5-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G21F5-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-10 |
| filingDate |
2006-01-24^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0849233681dece9faed407dc277278a1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_071901efb415144d20d6de7f6547be0f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dad812677641a77a3957efefb40735d3 |
| publicationDate |
2007-07-27^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20070077529-A |
| titleOfInvention |
A catalyst for preparing polytetramethylene ether glycol diester-copolymer and a process for producing polytetramethylene ether glycol diester-copolymer using the same. |
| abstract |
The present invention uses tetrahydrofuran and 2-methyltetrahydrofuran and / or 3-methyltetrahydrofuran monomers by using a halosite or attapulgite activated by acid and / or ammonium chloride treatment and a mixture thereof as a catalyst. The present invention relates to a process for preparing a copolymer of polytetramethylene ether glycol diester by copolymerization and a catalyst used therein. |
| priorityDate |
2006-01-24^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |