http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107312245-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2323-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2203-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2205-044 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K2201-014 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2203-14 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J7-123 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-3475 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-103 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-132 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-1345 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J7-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-134 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J7-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-3475 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-132 |
| filingDate | 2017-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107312245-B |
| titleOfInvention | Gradient foaming polypropylene sheet and preparation method thereof |
| abstract | The present invention provides a kind of gradient foaming polypropylene sheets and preparation method thereof.The diameter of the closed abscess in inside of the gradient foaming polypropylene sheet is become larger by appearance is inward-facing.In foaming polypropylene sheet according to the present invention and preparation method thereof, in the cross-linking process of the foaming polypropylene sheet, from outer surface to inside, because of the presence of a certain concentration ultraviolet light attenuant, ultraviolet ray intensity is gradually become smaller, and polypropylene crosslinking rate becomes smaller；Stop ultraviolet light before the deadline, sheet material will form the change of gradient of the degree of cross linking, i.e. melt strength gradient by outer surface to inside；Hereafter, sheet material foams at the same temperature, and because each position melt strength is different, the cell diameter of foaming is also different, and is become larger by sheet material outer surface to inside.The gradient distribution of the abscess is capable of the mechanical strength of reinforcing sheet, dimensional stability and the impact force etc. for resisting the external world. |
| priorityDate | 2017-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 54.