| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_50907fc1b392e2bf592f74fb8123032d |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-135
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G23-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 |
| filingDate |
1974-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1976-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aa5bc92aca85c7015c84cbbf00cb9d7d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6eca209d15a10a0e418617dcb04e2a37 |
| publicationDate |
1976-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3979372-A |
| titleOfInvention |
Preparation of titanium trichloride polymerization catalyst component |
| abstract |
It is known to prepare highly active catalyst components for a Ziegler polymerization catalyst by reduction of titanium tetrachloride with an aluminum alkyl. An improvement in the preparation of such catalysts which leads to production of highly sterospecific as well as highly active catalyst components consists of including in the preparation the step of washing the reaction mixture which contains the desired TiCl3 composition with an aliphatic hydrocarbon at temperatures above 40 DEG C and separating the washed solids from the wash liquid at a temperature above 40 DEG C. A heat treatment above 80 DEG C precedes, accompanies, or follows the washing and separation step. The washing step may be carried out in a single or in multiple stages. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8893725-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4431784-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2711226-C1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4189557-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4534953-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2012103327-A1 |
| priorityDate |
1974-01-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |