| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fab82a381f9d0ff8a604cb09e446c878 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-654
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-65
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60 |
| filingDate |
1992-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a73966ce9e548f62695feac7ae15c8a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fd057e6c410b06d141877c592d261025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b1420a6a8cb9e39360b48bb8cec88551
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_45aacb35340ae74e8bfac0665250b972 |
| publicationDate |
1993-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0559874-A1 |
| titleOfInvention |
PROCATALYTIC COMPOSITION FOR OLEFIN POLYMERIZATION CONTAINING MALEINIC OR FUMARIC ACID ESTERS AS AN ELECTRON DONOR. |
| abstract |
It is known that an electron donor associated with a tetravalent titanium compound on a magnesium halide carrier can be used if it constitutes a monoacid or an unsaturated polycarboxylic acid polyester where at least two carboxyl groups are attached to it. contiguous carbon atoms which form double bonds. Now, it has just been observed that the activity and the stereospecificity increase if at least one of said carbon atoms or a carbon atom attached by a double bond is replaced by a hydrocarbon group having between 1 and 20 carbon atoms. Mention may be made of the example of esters of maleic and fumaric acids substituted by such a hydrocarbon group. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101824106-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102268109-A |
| priorityDate |
1991-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |