| US 7,482,413 B2 | ||
| Magnesium dichloride-alcohol adducts and catalyst components obtained therefrom | ||
| Giampiero Morini, Padova (Italy); Giulio Balbontin, Savona (Italy); Fabrizio Piemontesi, Ferrara (Italy); Maria Fusto, Ferrara (Italy); Gianni Vitale, Ferrara (Italy); and Giansiro Prini, Castelguglielmo-Rovigo (Italy) | ||
| Assigned to Basell Poliolefine Italia s.r.l., Milan (Italy) | ||
| Appl. No. 10/550,986 PCT Filed Mar. 09, 2004, PCT No. PCT/EP2004/002519 § 371(c)(1), (2), (4) Date Sep. 26, 2005, PCT Pub. No. WO2004/085495, PCT Pub. Date Oct. 07, 2004. |
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| Claims priority of provisional application 60/460643, filed on Apr. 04, 2003. | ||
| Claims priority of application No. 03075872 (EP), filed on Mar. 27, 2003. | ||
| Prior Publication US 2006/0217261 A1, Sep. 28, 2006 | ||
| Int. Cl. C08F 4/42 (2006.01) | ||
| U.S. Cl. 526—124.2 [526/124.3; 526/142; 526/348; 502/103; 502/115; 502/118; 502/123] | 62 Claims |
| 1. An adduct comprising MgCl2.(EtOH)m(ROH)n(H2O)p wherein
R is a C1-C15 hydrocarbon group excluding ethyl, optionally substituted with at least one group comprising a heteroatom;
n and m are indexes higher than 0, satisfying the equations (n+m)≧0.7 and n/(n+m) ranges from 0.1 to 0.4;
and p is a number ranging from 0 to 0.7 with the proviso that when R is methyl and (n+m) is in the range of 0.7 to 1, the
value of n/(n+m) ranges from 0.05 to 0.45.
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