http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109080050-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G10K11-172 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C39-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29B11-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G10K11-162 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G10K11-168 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29B11-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G10K11-168 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C39-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G10K11-172 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G10K11-162 |
| filingDate | 2017-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109080050-B |
| titleOfInvention | Noise elimination and reduction covering layer material and preparation method thereof |
| abstract | The invention discloses a noise elimination and reduction covering layer material and a preparation method thereof. The material of the noise-elimination noise-reduction covering layer is cast by the following raw materials: 100 parts of casting polyurethane and 10-50 parts of cavity structural units; the cavity structure unit is a cavity body which is prepared by a 3D printing technology, 5-25 mm in size and 1-5 mm in wall thickness, and the cavity structure unit is added in the polyurethane casting molding process to form a covering layer in one step. Compared with the acoustic covering layer prepared by the traditional rubber, the material for the noise-eliminating and noise-reducing covering layer has the advantages that the sound-absorbing effect is obvious and the sound-absorbing performance is maintained stable particularly under the condition of high hydrostatic pressure, and the comprehensive sound-absorbing performance is obviously superior to that of the existing underwater sound material prepared by the traditional rubber. |
| priorityDate | 2017-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.