http://rdf.ncbi.nlm.nih.gov/pubchem/patent/MX-PA02004098-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| filingDate | 2000-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_37019787391c366d69f63bd2fc0d9f56 |
| publicationDate | 2002-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | MX-PA02004098-A |
| titleOfInvention | PROCEDURE FOR THE CONTINUOUS OBTAINING OF COPOLIAMIDS, BASED ON A LACTAMA (I), A DIAMINE (II) AND A DICARBOXYLIC ACID (III). |
| abstract | Procedure for the continuous obtaining of copolyamides, which are based on a lactam (I), a diamine (II) and a dicarboxylic acid (III), characterized in that a mixture (IV), containing a diamine (II), is reacted, a dicarboxylic acid (III) and water, in a first reaction zone at a pressure in the input area of the reaction zone of about 1.3 * 105 to 2.5 * 105 Pa, a temperature above the point of fusion of the polymer (V) and a degree of conversion, with respect to the molar amounts in diamine (II) and dicarboxylic acid (III), of at least 80%, giving a polymer (V), is reacted a mixture (VI) containing lactam (I) and water, in a second reaction zone at a pressure in the inlet area of the reaction zone of about 5 * 105 to 40 * 105 Pa, a temperature above melting point of the polymer (VII) and a degree of conversion, with respect to the molar amount in lactam (I), of at least 80%, giving a polymer (VII), is transformed to the polymer (V) and the polymer (VII) with each other in a third reaction zone at a pressure at the entrance of the reaction zone of about 1 * 10s to 1.5 * 105 Pa, at temperatures above melting point of the polymer (VIII), giving a polymer (VIII), the polymer (VIII) having a content of components removable with water at a temperature of 95 ° C, with respect to the lactam (I) diamine (II) and the dicarboxylic acid (III), of, at most, 10% by weight, and then, the polymer (VIII) is extracted with water, obtaining the copolyamide, Aopolyamides obtained by this procedure, its use for obtaining fibers, flat structure materials and molded bodies, as well as fibers, flat structure materials and molded bodies, which are based on these copolyamides. |
| priorityDate | 1999-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 75.