http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110157025-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2205-025 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2369-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2205-035 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2205-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2433-12 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D175-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J7-042 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D133-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L69-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D133-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D175-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J7-046 |
| filingDate | 2018-02-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110157025-B |
| titleOfInvention | a composite board |
| abstract | The invention discloses a composite board, comprising N-layer boards stacked in sequence, wherein: the first board layer is a polycarbonate layer, and the second board layer to the Nth board layer are all polymethyl methacrylate layer; the pencil hardness of the first layer to the Nth layer gradually increases, wherein N is a positive integer greater than or equal to 3. According to the invention, by sequentially stacking the layers with gradual hardness, the stress between the layers has a slow transition, the compatibility between the multi-layer layers is better, and the performance of the plate is optimized from the internal structure, and the prepared composite plate not only It has high hardness and good toughness, and it is not easy to break when bending. |
| priorityDate | 2018-02-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 74.