| abstract |
CATALYSTS ARE PRESENTED FOR THE POLYMERIZATION OF OLEFINS, PARTICULARLY FOR OLEPHINE ALPHA CH2 = CHR WHERE R IS A RADICAL ALKIL WITH 1 - 6 CARBON ATOMS OR AN ARIAL RADIAL, OBTAINED BY THE REACTION OF: A) AN ALKIL COMPOUND; B) AN ETHER CONTAINING AT LEAST TWO ETHER GROUPS THAT CAN FORM COMPLEXES WITH ANHYDRATED MAGNESIUM DICHLORIDE, UNDER NORMAL REACTION CONDITIONS, IN ONE IN A QUANTITY OF 60 MMOL PER 100 GR MG DICHLORIDE; AND C) A SOLID CATALYST COMPONENT THAT COMPRISES AN ANHYDRATED MAGNESIUM DIARURUUM IN AN ACTIVE FORM AND THAT HAS SUPPORTED ON THE SAME A TITANIUM COMPOUND THAT CONTAINS AT LEAST ONE DI-HALOGEN LINK AND AN EXTRA ELECTRONIC ISSUER COMPOSITE. TRIETIL UNDER NORMAL EXTRACTION CONDITIONS, FOR AT LEAST 70% IN MOL, IN WHICH THE SOLID, AFTER EXTRACTION, HAS A SURFACE AREA OF MORE THAN 20 M2, BROKEN PER GRAM. |