| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2205-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2500-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2420-07
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F16L47-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2500-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2500-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65912 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F16L9-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F16L9-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F16L47-00 |
| filingDate |
2016-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2020-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2020-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-107428863-B |
| titleOfInvention |
Polyethylene for pipe and joint, and molded body thereof |
| abstract |
The polyethylene for pipes and joints of the present invention satisfies the following characteristics (1) to (5). Characteristic (1): a melt flow rate (HLMFR) at a temperature of 190 ℃ and a load of 21.6kg of 5 to 20g/10 min. Characteristic (2): a density (D) of 0.954 to 0.960g/cm 3 . Characteristic (3): a ratio (Mw/Mn) of a weight average molecular weight (Mw) to a number average molecular weight (Mn) as measured by coacervation permeation chromatography (GPC) is 15 to 27. Characteristic (4): the breaking time (FNCT) at 80 ℃ and 5MPa based on the full notch creep test is 150 hours or more. Characteristic (5): a Charpy Impact Strength (CIS) of 8.5kJ/m measured at-20 DEG C 2 The above. |
| priorityDate |
2015-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |