Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_44ff3005508304394801e265e503b811 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-77 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-75 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-045 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-38 |
filingDate |
2002-04-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ea2fe785db3c8a7d7f7e4cb38a2205be http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62b4221612b269117cd70a70eeadb708 |
publicationDate |
2002-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
JP-2002348349-A |
titleOfInvention |
Method for producing polymer for optical material |
abstract |
PROBLEM TO BE SOLVED: To use a polythiol oligomer obtained by a method for efficiently producing a polythiol oligomer useful as a raw material of a polymer for an optical material having excellent optical properties as a raw material, Provided is a method for producing a polymer for an optical material having excellent optical properties. SOLUTION: In the presence of a basic catalyst, a polythiol having two or more functional groups is reacted with sulfur to produce a polythiol oligomer having a disulfide bond, and the resulting polythiol oligomer and a poly (thio) isocyanate group-containing compound and / or Or a method for producing a polymer for an optical material in which a polyfunctional vinyl group-containing compound is copolymerized. |
isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2005336476-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9670379-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4534857-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2012229329-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-102306923-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2008512524-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3121216-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3121214-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10414870-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20210101341-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-4032937-A1 |
priorityDate |
1996-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |