| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_75fcfb61e8c9c1c77d86ee7363827081 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-14 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-758
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C263-20 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C263-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-75 |
| filingDate |
1992-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1992-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c07456475eb8ed95dfd97ee82db4d743
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cc26d1eaa0f1d23de360bd1e96d50e92
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_449d5774d5edf592cf05456252d950e5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_229b99c35b9e84aeaa906b98afb89cd6 |
| publicationDate |
1992-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5175350-A |
| titleOfInvention |
Melt crystallization process for preparing high trans, trans-isomer containing 4,4'-diisocyanato dicyclohexylmethane |
| abstract |
The present invention is directed for preparing a 4,4'-diisocyanato dicyclohexylmethane which contain a relatively high amount of the trans,trans-isomer. The process broadly comprises (a) melting a mixture of 4,4'-diisocyanato dicyclohexyl-methane isomers, (b) cooling the melted mixture to form: (1) a liquid phase and (2) a solid phase, (c) removing said liquid phase, which is a commercially viable product itself, (d) heating the solid phase and removing that portion of the solid phase which has melted, and (e) recovering that portion of said solid phase which has not melted by heating the remaining portion. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5455374-A |
| priorityDate |
1990-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |