公开(公告)号：US20220072499A1

公开(公告)日：2022-03-10

申请号：US17424382

申请日：2020-01-21

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： TIZIANA CAPUTO ,  ANTONIO MAZZUCCO ,  NICOLO ARICH DE FINETTI ,  MARCO BOCCHINO

IPC: B01J19/00 ,  B01J19/24

Abstract: A method for monitoring and controlling the polymerization in a polymerization vessel by using a camera viewing unit to (a) detect features of the polymer particles, or the particles' environment, (b) compare the features to pre-defined acceptable values of these features or the environment, and (c) if a variation from the pre-defined values is detected, act on process parameters to reduce or eliminate the variation.

公开(公告)号：US20160304642A1

公开(公告)日：2016-10-20

申请号：US15031913

申请日：2014-10-21

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： BENEDETTA GADDI ,  MARCO BOCCHINO ,  GIANNI COLLINA ,  OFELIA FUSCO ,  SIMONA GUIDOTTI ,  ANTONIO MAZZUCCO ,  ROBERTO PANTALEONI ,  FABRIZIO PIEMONTESI

IPC: C08F210/02 ,  C08J9/00

CPC classification number: C08F210/02 ,  C08F10/06 ,  C08J9/0052 ,  C08J9/0066 ,  C08F210/06 ,  C08F210/16 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/24 ,  C08F4/6492 ,  C08F4/651 ,  C08F2/001 ,  C08F4/6545

Abstract: The present disclosure relates to a process for the preparation of a porous propylene carried out in the presence of a catalyst system comprising (a) a Ziegler-Natta catalyst containing at least two electron donor compounds, one of which is present in an amount from 50 to 90% by mol with respect to the total amount of donors and selected from succinates, and the other being selected from 1,3 diethers, (b) an aluminum alkyl and comprising the following steps: i) contacting the catalyst components (a) and (b) for a period of time ranging from 1 to 60 minutes, at a temperature ranging from 35 to 55° C.; optionally, ii) pre-polymerizing with one or more olefins of formula CH2═CHR, where R is H or a C1-C10 hydrocarbon group, up to forming amounts of polymer from about 0.1 up to about 1000 g per gram of solid catalyst component (a); and iii) polymerizing propylene in the optional presence of minor amounts of ethylene and/or C4-C10 alpha olefins for producing the porous propylene (co)polymer.