| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_47cc435e1d443f13180f7766df104d9d |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L23-293
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L2924-0002
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L33-56 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G59-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-916
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L23-29
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L63-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G59-4215
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G59-42 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L33-56 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L23-29
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L63-00 |
| filingDate |
2005-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2010-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0a36a8a36de204a5b834bccb15269aab
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1b832ed9c43dd0a0b9a1dc314c724176 |
| publicationDate |
2010-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-7790812-B2 |
| titleOfInvention |
Epoxy resin curing agent produced by heating anhydride and polyester in presence of hydrogen and hydrogenation catalyst |
| abstract |
The present invention relates to a process for producing an acid anhydride-based epoxy resin curing agent, an acid anhydride-based epoxy resin curing agent, an epoxy resin composition, and a cured product and optical semiconductor device using the same. The process for producing an acid anhydride-based epoxy resin curing agent according to the present invention comprises heating a mixture containing a polyvalent carboxylic acid anhydride and a polyester resin in the presence of hydrogen gas and a hydrogenation catalyst. |
| priorityDate |
2004-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |