http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2009154077-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C263-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C263-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C265-14 |
| filingDate | 2009-06-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2011-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-WO2009154077-A1 |
| titleOfInvention | Method for producing polyisocyanate |
| abstract | Provided is a method for producing a polyisocyanate capable of sufficiently improving the hue of an isocyanate while reducing the amount of hydrogen chloride used. The polyisocyanate production method of the present invention includes a phosgenation reaction step in which polyamine and phosgene are reacted, a mixing step in which the reaction liquid obtained in the phosgenation reaction step is mixed with an isocyanate containing separately prepared hydrogen chloride, And a heating step of heating the reaction solution obtained in the mixing step. This makes it possible to sufficiently improve the hue with a small amount of hydrogen chloride without consuming more hydrogen chloride than necessary. |
| priorityDate | 2008-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.