http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108299580-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-092 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-16 |
| filingDate | 2017-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108299580-B |
| titleOfInvention | A kind of method for producing ethylene-propylene copolymer type lubricating oil viscosity index improver |
| abstract | The invention relates to the field of lubricating oil viscosity index improvers, and discloses a method for producing an ethylene-propylene copolymer type lubricating oil viscosity index improver, wherein the method comprises dissolving ethylene-propylene copolymer glue in base oil, and then adding The solvent is removed; the number-average molecular weight of the ethylene-propylene copolymer in the ethylene-propylene copolymer glue solution is not higher than 120,000. Using the method provided by the invention to produce the ethylene-propylene copolymer type lubricating oil viscosity index improver saves the process of glue liquid coagulation, post-treatment drying, shearing thermal dissolution and degradation of the dry glue, simplifies the process steps and reduces the production cost , which can be used to prepare high-performance lubricating oil viscosity index agent. |
| priorityDate | 2017-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.