http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100634025-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F7-1804 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F7-10 |
| filingDate | 2004-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2006-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2006-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-100634025-B1 |
| titleOfInvention | Method for preparing aminoalkoxysilane |
| abstract | The present invention relates to a method for preparing γ- [N- (2-aminoethyl)] aminopropylalkylalkoxysilane, specifically, a) γ represented by the formula (1) by adding ethylenediamine and a cyclic tertiary amine as a catalyst to a reactor. Preparing γ- [N- (2-aminoethyl)] aminoalkylalkoxysilane at a low temperature of 50 to 60 ° C. by reacting the chloroalkylalkoxysilane dropwise; b) adding ethylenediamine-hydrogen chloride salt to the synthetically prepared reaction mixture and then leaving the reaction mixture to form a two-phase separation; c) separating the lower layer rich in ethylenediamine-hydrogen chloride salt in the reaction mixture separated into two phases; d) removing the low boiling point volatile containing ethylenediamine from the upper layer of the filtrate under low temperature vacuum and preparing γ- [N- (2-aminoethyl)] aminoalkylalkoxysilane represented by the following Chemical Formula 2; e) vacuum distilling the lower layer separated in step c) as in step d) to remove volatiles including ethylenediamine and recycling the remaining ethylenediamine and hydrogen chloride salts into the mixed solution after the reaction of step b). It relates to a method for producing γ- [N- (2-aminoethyl)] aminoalkylalkoxysilane containing.n n n In the preparation method according to the present invention, the molar ratio with ethylenediamine is always ensured at least 12 times in the reaction system by dropwise addition of γ-chloroalkylalkoxysilane to prepare γ- [N- (2-aminoethyl)] aminoalkylalkoxysilane. It suppresses the production of by-product bissilyl, and reacts at low temperature under the catalyst to prepare the target product, thereby preventing discoloration of the product.Additional separation of ethylenediamine / hydrogen chloride into the mixed solution after inducing easy separation There is an advantage with a simplified γ- [N- (2-aminoethyl)] aminoalkylalkoxysilane purification process that omits the phase separator and the first distillation process.n n n γ- [N- (2-aminoethyl)] aminoalkylalkoxysilane, aminoalkylalkoxysilane |
| priorityDate | 2004-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.