| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c72d118f5664072de841f9c5c34b9d99 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D403-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D209-48 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G8-02 |
| filingDate |
2005-09-21^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_538433d7f69e8ca31f4ba979f8bc347d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_297762dbceada8267964a026b87dabe1 |
| publicationDate |
2006-06-22^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2006135731-A1 |
| titleOfInvention |
Method for the preparation of bis(haloimides) |
| abstract |
Bis(halophthalimides) are prepared in a solvent such as ortho-dichlorobenzene or anisole, by a reaction at a temperature of at least 150° C. between at least one diamine compound and at least one halophthalic anhydride in the presence of imidization catalyst. The reaction produces a vapor stream comprising solvent and water formed as a by-product of the imidization reaction. A suitable vapor handling system comprising a partial reflux condenser is used to recycle the solvent, maintain the reactant concentration, conduct the reaction at a higher temperature, and effect more efficient conversion of reactants to product bis(halophthalimides). Reaction conditions disclosed may also be used to prepare organic polyimides. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015038859-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105531300-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10377860-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9382382-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11220480-B2 |
| priorityDate |
2004-12-22^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |