http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101392208-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c9ff53ed10d571b4d4201babd464bb00 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10N30-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M143-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M143-02 |
| filingDate | 2008-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b3ec5145ede2b83ffa84f373dea132db |
| publicationDate | 2009-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-101392208-A |
| titleOfInvention | Method for producing lubricating oil viscosity index improver |
| abstract | The invention relates to a method for producing a viscosity index improver (VII) of lubricating oil. The method comprises the steps that base oil is first added into a reaction kettle in which ethylene-propylene copolymer is added after the base oil is stirred and heated to 80 DEG C to less than 100 DEG C, then the temperature is increased to 100 DEG C to 200 DEG C to so as to lead the ethylene-propylene copolymer to dissolves fully; and at the temperature of 171 DEG C to 270 DEG C, a controllable degradation catalyst is added into the reaction kettle for reaction for 0.5 h to 10 h, and then the base oil is supplemented and sttired evenly so as to obtain the viscosity index improver of the lubricating oil. The viscosity index improver of the lubricating oil mainly solves the problems of exorbitant price, or poor compatibility of thickening capacity, cutting stability and oil detergency of the viscosity index improver in the prior art, and can be applied to the mass production of the viscosity index improver of the lubricating oil. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109553781-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109553781-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111849584-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108048167-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112375611-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105132081-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105132081-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104031195-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104531265-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114276857-A |
| priorityDate | 2008-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.