http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RO-96849-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e411eb59b38e8762691731f9e7bc1fdd http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_27ad9c1c7b935046fa53fb33d28febcb http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ab16ad62a0f4a12df469dc5644c73ca6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c24ae9228b7776cd479705e294a82949 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C55-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-41 |
| filingDate | 1987-01-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_70ba627c80108296b192f77016b51fe2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_02cddfe64cbd19668038f0cb4a1462cb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f66bec28935e6336301949a636a76e62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ee978cf675ca759bd59d2e4efa4063bd |
| publicationDate | 1989-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RO-96849-B1 |
| titleOfInvention | PROCEDURE FOR OBTAINING THE HEXAMETHYLAMINE ADDENDUM |
| abstract | The invention relates to a process for obtaining the hexamethylenediamine adipate in an aqueous medium, for the manufacture of the polyamide 6.6. and consisted in the preparation of a saturated solution of AH salt 50% at 25 ° C, obtained by adding over a solid adipic acid, heated to 75 ° C, a solution of 40 ... 45% hexamethylenediamine in a proportion of 30 % to the solid adipic acid, a 60% hexamethylenediamine solution in water is added to the solution thus formed, in stoichiometric amount to the free adipic acid in the solution, obtaining a suspension of approximately 71%, which is diluted until a solution is obtained at a concentration of 50%, wherein 20% adipic acid is dissolved at 60-70 ° C, to which melted hexamethylenediamine is added in stoichiometric amount to adipic acid, resulting in a suspension of AH salt, which is separated by centrifugation. |
| priorityDate | 1987-01-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.