| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6cf02db138c298607c7bffaf09bdbfcc |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L9-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-90
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-17
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K2201-006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-12 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-193
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L21-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B60C1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B60C1-0016
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L9-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-34 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B60C1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L21-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-193 |
| filingDate |
2019-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5d05a2c45162fd86ee46b1884a0bc002
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_942d0da66e2958da39a0dd819c2205f1 |
| publicationDate |
2021-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2021047191-A1 |
| titleOfInvention |
Hydrous silica for rubber-reinforcing filler |
| abstract |
The present invention pertains to a hydrous silica for rubber-reinforcing filler, having a BET specific surface area ranging from 230 to 350 m 2 /g, and satisfies the following: a) the pore volume of 1.9 nm to 100 nm pore radius measured by the mercury press-in method (V HP-Hg ) ranges from 1.40 to 2.00 cm 3 /g; b) total pore volume in the range of 1.6 nm to 100 nm pore radius by the nitrogen adsorption/desorption method (V N2 ) ranges from 1.60 to 2.20 cm 3 /g; and c) the pore volume ratio of (a) and (b) V HP-Hg /V N2 ranges from 0.70 to 0.95. This invention provides a hydrous silica capable of further improving reinforcing properties of a rubber, particularly the wear resistance by improving dispersibility of the hydrous silica in the rubber in addition to rubber reinforcing properties obtained by a high BET specific surface area. |
| priorityDate |
2018-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |