http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109971076-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2205-24 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-1575 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-521 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-098 |
| filingDate | 2019-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109971076-B |
| titleOfInvention | Polypropylene composition and preparation method thereof |
| abstract | The invention discloses a polypropylene composition, which comprises the following components in parts by weight: 90-100 parts of copolymerized polypropylene; 1-10 parts of branched polyethylene; 0.1-0.5 part of nucleating agent; wherein the molecular weight of the polypropylene copolymer is 25000-30000, the Molecular Weight Distribution (MWD) range is 2.5-3.0, the polypropylene isotacticity range is 90-95%, aPP accounts for 0.5-1.5% of the total weight of the polypropylene copolymer, and EP accounts for 0.5-5.0% of the total weight of the polypropylene copolymer. The polypropylene composition disclosed by the invention takes polypropylene as a main body of a resin matrix, the microstructure of a polypropylene chain segment is designed, and the branched polyethylene with a specific chain segment structure is selected, so that the interfacial energy of the polypropylene and the polyethylene is effectively reduced, the interfacial bonding force between two kinds of resins is improved, the chain segment and lattice defects are reduced, and the polypropylene composition has the advantages of yellowing resistance and chemical resistance by matching with an efficient nucleating agent. |
| priorityDate | 2019-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 95.