| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5a1077e75e4b7dcca325e0b7fa45bb96
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fb4adbd58784b97f699a4d3d9aaac6ff
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5a2d5d79b60862424106eb0561b037db |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-353 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-34 |
| filingDate |
2005-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2013-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_487d34883314fe0c3af51bb167cef4ee
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a438ac33464a2632b0d96fbdf6a5455d |
| publicationDate |
2013-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-8350058-B2 |
| titleOfInvention |
Method for producing alkenyl succinic anhydrides |
| abstract |
The invention relates to a method for producing alkenyl succinic anhydrides of formula (1), n nin which R represents a C4 to C250 alkylene radical that can be linear or branched. The method involves the reaction of maleic acid, maleic anhydride, fumaric acid or esters thereof and an alkene which contains 4-250 carbon atoms at from 150 to 250° C. in the presence of a synergistic mixture of a primary antioxidant, a secondary antioxidant, and a metal deactivator. |
| priorityDate |
2004-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |