Polymerization catalysts
Abstract
Abstract 1. A CATALYST FOR THE POLYMERIZATION OF OLEFINS AND CONSISTING ESSENTIALLY OF THE PRODUCT BY MIXING (A) A CATALYST-FORMING COMPONENT WHICH IS SELECTED FROM THE GROUP CONSISTING OF A1(C2H5)3, A1(C2H5),C1, A1(IC4H9)3, A1(IC4H9)2C1, SP A12(C2H5)3C12, A1(C2H5)2H, A1(IC4H9)2H, A1(C2H5)2BR, LIA1(IC4H9)4 AND LIIC4H9, SP WITH (B) A CATALYST-FORMING COMPONENT OBTAINED BY CONTACTING (1) A TITANIUM COMPOUND HAVING THE GENERAL FORMULA M2TIXN+2 IN WHICH M IS AN ALKALI METAL, THE SUBSTITUENTS XN ARE HALOGEN ATOMS AND N IS THE VALENCE OF THE TITANIUM, WITH (2) A SUPPORT CONSISTING OF AN ACTIVE ANHYDROUS MAGNESIUM DIHALIDE CHARACTERIZED IN THAT, IN ITS X-RAYS SPECTRUM THE REFLEXTION WHICH IS MOST INTENSE IN THE X-RAYS SPECTRUM OF THE NORMAL, INACTIVE MAGNESIUM DIHALIDE IS MARKEDLY DECREASED IN INTENSITY, AND IN THAT IT HAS A SURFACE AREA GREATER THAN 3 M.2/G.
Inventors
- 👤 P Longi
- 👤 U Giannini
- 👤 R Mazzocchi
Bibliographic Details
Claims Analysis
Total Claims: 2References Cited (Backward Citations)
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