公开(公告)号：US20020086794A1

公开(公告)日：2002-07-04

申请号：US09993512

申请日：2001-11-05

Applicant: Basell Technology Company BV.

Inventor： Mario Sacchetti ,  Gabriele Govoni ,  Anna Fait

IPC: B01J031/00

CPC classification number: B01J27/138 ,  B01J31/0201 ,  C08F10/00 ,  C08F110/06 ,  C08F4/6545 ,  C08F2500/18 ,  C08F2500/20 ,  C08F4/6543 ,  C08F4/022

Abstract: The present invention relates to MgCl2.mROH.nH2O adducts, where R is a C1-C10 alkyl, 2nullmnull4.2, 0nullnnull0.7 , characterized by an X-ray diffraction spectrum in which, in the range of 2null diffraction angles between 5null and 15null, the three main diffraction lines are present at diffraction angles 2null of 8.8null0.2null, 9.4null0.2null and 9.8null0.2null, the most intense diffraction lines being the one at 2nullnull8.8null0.2null, the intensity of the other two diffraction lines being at least 0.2 times the intensity of the most intense diffraction line. Catalyst components obtained from the adducts of the present invention are capable to give catalysts for the polymerization of olefins characterized by enhanced activity and stereospecificity with respect to the catalysts prepared from the adducts of the prior art.

Abstract translation: 本发明涉及MgCl 2·mROH·nH 2 O加合物，其中R是C 1 -C 10烷基，2 <= m <= 4.2,0 <= n <0.7，其特征在于X射线衍射光谱，其中在 2θ衍射角在5°和15°之间的范围内，三条主要的衍射线分别以8.8±0.2°，9.4±0.2°和9.8±0.2°的衍射角2θ处存在，最强的衍射线为2θ= 8.8±0.2°，其他两条衍射线的强度为最强衍射线强度的至少0.2倍。 从本发明的加合物获得的催化剂组分能够产生用于烯烃聚合的催化剂，其特征在于相对于由现有技术的加合物制备的催化剂具有增强的活性和立体定向性。