http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103028274-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_44249e813d0cadb2f89ed79868e00df3 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D19-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18 |
| filingDate | 2012-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c6a7a82adffda566d5e3c07ca069a612 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_96bf594addc5c4857af52261f4cd874c |
| publicationDate | 2014-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103028274-B |
| titleOfInvention | Defoaming method in synthesizing process of polyamide resin |
| abstract | The invention discloses a defoaming method in the synthesizing process of polyamide resin. The method comprises the following steps: heating and slowly stirring polyamide resin solution in a kettle at first at the temperature of 35 to 100 DEG C at normal pressure for 0.5 to 1.5h, wherein the stirring speed is less than or equal to 50r/min; then, quickly stirring the polyamide resin solution at a stirring speed of 60 to 100r/min at the same temperature for 2 to 4h; and casting film when the defoaming is completed, wherein CO2, nitrogen or other inert gas can be fed during the casting of the film to prevent the resin from discoloring and deteriorating at a gas flow of 0.1 to 0.8 m<3>/min, and a relative pressure of 0.3 to 0.5MPa is kept in the kettle. According to the method, the foaming is thorough, the surface quality of the film obtained later is improved, the defoaming time is short and the defoaming process is convenient in operation. |
| priorityDate | 2012-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.