| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_30676b8771a7a6cd3c658fd0a3e0a4b1 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L1-303
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L1-2475
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M159-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M133-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F6-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L1-198
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L1-238
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L1-305 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M133-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F6-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F6-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10L1-198
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10L1-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10L1-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10L1-238
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M159-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M159-12 |
| filingDate |
1997-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1998-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b2d40caead85201300c9f3fb6b076531
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd4001685efbed22c8806e3fb5c5df17
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8f89ac7c1089f96be078762fdbad1ae2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c060195fe396bed1b9aaf2a202516fb4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8b8c6c8b0e1691c2c925e56c39ddbf11
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5e239a49d5947d5cb2da55983c9603ef
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_208fcda540d75243635dc7eef6fe94da
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7d34e20cf037d055faf073aaa1cade89 |
| publicationDate |
1998-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5804667-A |
| titleOfInvention |
Dispersant additives and process |
| abstract |
The invention pertains to improved lubricating oil dispersants wherein a fractionating polymer is prepared prior to functionalization (e.g., in the Koch reaction) for making dispersant additives. In one aspect, it was discovered that by fractionating a polymer to remove light hydrocarbon and unreacted monomer from the polymer before the carbonylation step of the Koch reaction, the amount of light ester impurities generated was minimized. Light ester is an undesirable byproduct that adversely affects the recycle of the catalyst from the functionalization step of the Koch reaction. The invention also pertains to improved lubricating oil nitrogen-containing dispersant additives derived from fractionated polymer. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011014215-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6162768-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6215033-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9967349-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6228817-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0034421-A1 |
| priorityDate |
1994-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |