| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2205-024
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2205-022
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2205-028
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2205-026
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10N2030-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10N2020-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10N2020-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2205-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10N2020-04 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M107-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M107-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M107-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M101-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M143-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-02 |
| filingDate |
2007-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2010-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-WO2008047878-A1 |
| titleOfInvention |
Copolymer, lubricating oil viscosity modifier and lubricating oil composition |
| abstract |
To provide a lubricating oil composition having excellent low temperature characteristics, a lubricating oil viscosity modifier contained in the lubricating oil composition, and a specific copolymer constituting the lubricating oil viscosity modifier. A copolymer having a structural unit derived from ethylene and a structural unit derived from an α-olefin having 3 to 20 carbon atoms and satisfying the following requirements (1) to (5); (1) Tm is −20 It exists in the range of ℃ -100 ℃, (2) Tm and density D (g / cm3) satisfy the relationship of the following formula (1), (3) Mw / Mn measured by GPC is 1.6-5 (4) The half-value width (ΔThalf) of the melting peak measured by DSC is 90 ° C. or less, and (5) ΔThalf and Tm satisfy the relationship of the following formula (2). Tm ≧ 1073 × D-893 (1) ΔThalf ≦ −0.71 × Tm + 101.4 (2) |
| priorityDate |
2006-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |