Title:
MAGNESIUM DICHLORIDE-ETHANOL ADDUCTS AND CATALYST COMPONENTS OBTAINED THEREFROM
Document Type and Number:
WIPO Patent Application WO2003082930
Kind Code:
A3
Abstract:
The present invention relates to a MgCl2.mEtOH adduct in which m is from 2.5 to 3.2 optionally containing water up to a maximum of 1%wt based on the total weight of the adduct, characterized by a DSC profile in which the highest melting Temperature (Tm) peak is over 109°C and has an associated fusion enthalpy ( H) of 103 J/g or lower. Catalyst components obtained from the adducts of the present invention are capable to give catalysts for the polymerization of olefins characterized by enhanced activity with respect to the catalysts prepared from the adducts of the prior art.
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Inventors:
EVANGELISTI DANIELE (IT)
COLLLINA GIANNI (IT)
COLLLINA GIANNI (IT)
Application Number:
PCT/EP2003/002819
Publication Date:
July 29, 2004
Filing Date:
March 17, 2003
Export Citation:
Assignee:
BASELL POLIOLEFINE SPA (IT)
EVANGELISTI DANIELE (IT)
COLLLINA GIANNI (IT)
EVANGELISTI DANIELE (IT)
COLLLINA GIANNI (IT)
International Classes:
C07C31/08; C07F3/00; C08F4/00; C08F4/646; C08F4/651; C08F4/654; C08F4/655; C08F4/658; C08F10/00; C08F110/06; (IPC1-7): C08F110/06; C08F4/654
Domestic Patent References:
| WO1998044009A1 | 1998-10-08 |
Foreign References:
| US4215013A | 1980-07-29 |
Other References:
DATABASE CA [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; MITSUI TOATSU CHEMICALS, INC., JAPAN: "Polymerization of.alpha.-olefins", XP002254446, retrieved from STN Database accession no. 102:132653
DATABASE CA [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; HONG, XIAOYU ET AL: "Preparation of spherical MgCl2-supported catalyst by spraying for propylene polymerization", XP002254447, retrieved from STN Database accession no. 121:206070
DATABASE CA [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; ZOU, FENG-LOU ET AL: "FTIR study on the preparation of supported catalyst for propylene polymerization", XP002254448, retrieved from STN Database accession no. 131:243659
GAROFF, THOMAS ET AL: "The influence of water of crystallization on the performance of a Ziegler-Natta catalyst in propylene polymerization", TRANSITION MET. ORGANOMET. CATAL. OLEFIN POLYM., [PROC. INT. SYMP.] (1988), MEETING DATE 1987, 197-208. EDITOR(S): KAMINSKY, WALTER;SINN, HANSJOERG. PUBLISHER: SPRINGER, BERLIN, FED. REP. GER., XP008021826
DATABASE CA [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; HONG, XIAOYU ET AL: "Preparation of spherical MgCl2-supported catalyst by spraying for propylene polymerization", XP002254447, retrieved from STN Database accession no. 121:206070
DATABASE CA [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; ZOU, FENG-LOU ET AL: "FTIR study on the preparation of supported catalyst for propylene polymerization", XP002254448, retrieved from STN Database accession no. 131:243659
GAROFF, THOMAS ET AL: "The influence of water of crystallization on the performance of a Ziegler-Natta catalyst in propylene polymerization", TRANSITION MET. ORGANOMET. CATAL. OLEFIN POLYM., [PROC. INT. SYMP.] (1988), MEETING DATE 1987, 197-208. EDITOR(S): KAMINSKY, WALTER;SINN, HANSJOERG. PUBLISHER: SPRINGER, BERLIN, FED. REP. GER., XP008021826
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