http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109734909-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 |
| filingDate | 2019-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109734909-B |
| titleOfInvention | Polyimide powder and preparation method thereof |
| abstract | A polyimide powder and a preparation method thereof belong to the field of preparation of organic polymer powder. The microcosmic polyimide powder has a rod-shaped structure, the diameter is 5-30 mu m, the length is 5-1000 mu m, the length-diameter ratio is 1-200, and the dielectric constant is 2.5-3.6; the preparation method comprises the following steps: drying polyamic acid, grinding with a grinder to obtain polyamic acid powder, and performing thermal cyclization treatment to obtain the final product polyimide powder. The polyimide powder has uniform color, good shape and particle size uniformity and no agglomeration; the preparation method is simple in process, low in cost, environment-friendly, capable of effectively saving energy consumption on the premise of ensuring product quality and production efficiency, and suitable for industrial production. |
| priorityDate | 2019-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 65.