http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103313967-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C263-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C265-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C263-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C265-14 |
| filingDate | 2011-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_acf61e57fbf1d4c84fe9cf8066228e4f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_07eaf79820f248f6a940b06c4673e4ea http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e746395f11abdf48ba29181a63571754 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42799cafa4c19e360191b0a7bd725954 |
| publicationDate | 2014-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103313967-B |
| titleOfInvention | Process for purifying mixtures comprising 4,4'-methylene diphenyl diisocyanate |
| abstract | The invention relates to a process for purifying mixtures comprising 4,4'-methylene diphenyl diisocyanate, comprising the distillative purification of a mixture I comprising 4,4'-methylene diphenyl diisocyanate having a content of hydrolysable chlorine to ASTM D4663-10 of more than 100 ppm by means of a column K1, wherein the gaseous stream consisting of mixture I is contacted in column K1 with at least one liquid compound A which has a boiling point which is the same as or higher than 4,4'-methylene diphenyl diisocyanate and which has a content of hydrolysable chlorine to ASTM D4663-10 of at most 100 ppm, and wherein the gaseous stream O which is obtained at the top of the column and comprises 4,4'-methylene diphenyl diisocyanate has a content of hydrolysable chlorine to ASTM D4663-10 of at most 100 ppm. |
| priorityDate | 2010-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.