http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102492121-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2f62d1751e2557b38a9aa3cd4cf98a8b |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-183 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-85 |
| filingDate | 2011-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1e53a783fd22797ff59a3982e754ff2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3b5ef5d354b6fb3d304c677cabb3dd73 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ad6758451725adf853e299e3993db67d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_83cd4d815a11dcac7ec136e4714a79f2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fb4950d37e0792dbfdcee39e53bdbedb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6979e72eb4a6773c445cb2d3854275b9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_696e7d16105cad017236698158b99fe6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8fdfe427bdc515271aeb3b947f28eceb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_57d07d5bc6cbac2b1d5bfe74dc6fd57f |
| publicationDate | 2013-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102492121-B |
| titleOfInvention | Preparation method and use of rare earth coated titanium polyesterification catalyst |
| abstract | The invention provides a preparation method and use of a rare earth coated titanium polyesterification catalyst. The preparation method comprises: heating a solvent to a certain temperature; dissolving a titanate, a phosphate, a silicate ester and other metal compounds in the organic solvent, stirring, keeping the temperature, dripping a small amount of water to promote hydrolysis and obtaining a red precipitate; and repeatedly washing the obtained red precipitate with acetone, removing residual ethanediol, drying the precipitate at 70 DEG C under vacuum and obtaining red powdered catalyst. The polyester prepared by using the catalyst has good hue, other properties of the titanium catalyst are also improved, the catalyst does not contain toxic stibium compounds, and therefore the toxicity of the stibium compounds to the environment and human body is eliminated. The preparation method is mainly to solve the technical problem of the conventional polyesterification process and the yellowing problem of polyethylene glycol terephthalate (PET) and improve the quality of the polyester. |
| priorityDate | 2011-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 54.