http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004225105-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-412 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-46 |
| filingDate | 2003-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c849bb2ed96eafc81376e41f0fb30fcc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a3ec8938e523dc587a56981972340e9d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_867b35c3cf624acac1dc0acddf6676d1 |
| publicationDate | 2004-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2004225105-A1 |
| titleOfInvention | Process for preparing polyalkenylsuccinimides |
| abstract | The present invention relates to an improved process for preparing polyalkenylsuccinimides having a sediment level less than 0.1 vol % comprising the steps of: n (a) preparing a polyalkenyl derivative of an unsaturated acidic reagent by n (i) reacting a polyalkylene with an unsaturated acidic reagent in the absence of a strong acid until at least 25 % of the polyalkylene is converted to a polyalkenyl derivative of an unsaturated acidic reagent; n (ii) continuing the reaction with an excess of the unsaturated acidic reagent in the presence of a strong acid to convert at least some of the unreacted polyalkylene to additional polyalkenyl derivative of an unsaturated acidic reagent; and n (iii) removing the unreacted unsaturated acidic reagent; n (b) reacting the unfiltered product of step (a) with a polyamine having at least one basic nitrogen atom; n (c) diluting the product of step (b); and n (d) subsequently filtering the polyalkenylsuccinimide product. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7091306-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010081727-A1 |
| priorityDate | 2003-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 142.