| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_30676b8771a7a6cd3c658fd0a3e0a4b1 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F110-08 |
| filingDate |
1990-06-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1993-01-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b35d8cc71db96c1659281c8402485a12 |
| publicationDate |
1993-01-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5177288-A |
| titleOfInvention |
Polybutene process |
| abstract |
Polybutene is prepared from a mixed C 4 hydrocarbon feedstream using an organo-aluminum/HCl catalyst system wherein the HCl is introduced separately into the feedstream to form organochloride in the feedstream. Polybutene product having a very narrow molecular weight distribution is obtained over the M n range of 700 to 3,000. Dispersants derived from this polybutene exhibit substantially improved performance in lubricating oil compositions. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5674819-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6608155-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6281309-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0684262-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6133386-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6310154-B1 |
| priorityDate |
1988-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |