公开(公告)号：US11034781B2

公开(公告)日：2021-06-15

申请号：US16468628

申请日：2017-12-12

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： Gianni Collina ,  Maria Di Diego ,  Benedetta Gaddi ,  Piero Gessi ,  Lorella Marturano ,  Giampiero Morini

IPC: C08F110/02

Abstract: A catalyst component made from or containing Ti, Mg, chlorine, an amount of a first internal donor selected from esters of aliphatic monocarboxylic acids (EAA), and an amount of a second internal donor selected from cyclic ethers (CE), wherein the EAA/CE molar ratio ranges from 0.02 to less than 20.

公开(公告)号：US10155888B2

公开(公告)日：2018-12-18

申请号：US15400734

申请日：2017-01-06

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： Massimo Covezzi ,  Gabriele Mei ,  Maria Di Diego ,  Piero Gessi ,  Pietro Baita ,  Roberta Pica

IPC: C09J151/06 ,  C08F10/00 ,  C08F110/02 ,  B32B7/12 ,  B32B15/085 ,  B32B27/06 ,  C08L23/06 ,  C08L23/20 ,  C08L51/06 ,  C09J5/02 ,  C09J123/06 ,  C09J123/20

Abstract: The present technology relates to a method of introducing a supported antistatic compound that does not comprise a transition-metal-based catalyst component for use in an olefin polymerization reactor. In some embodiments, the methods disclosed herein avoid the formation of polymer agglomerates in the reactor and minimize potentially negative effects on catalyst yield.