公开(公告)号：US09683062B2

公开(公告)日：2017-06-20

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: C08J9/00 ,  C08F210/06 ,  C08F10/06 ,  C08F210/02

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.

公开(公告)号：US20240309134A1

公开(公告)日：2024-09-19

申请号：US18577637

申请日：2022-06-24

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： Marco Bocchino ,  Davide Tartari ,  Alberto Nardin ,  Benedetta Gaddi ,  Gianni Colina ,  Nicola Pazi

IPC: C08F210/06 ,  C08J5/18

CPC classification number: C08F210/06 ,  C08J5/18 ,  C08J2323/16

Abstract: A biaxially oriented polypropylene (BOPP) film made from or containing a copolymer of propylene and ethylene having:



i) the content of ethylene derived units ranging from 0.5 wt % to 2.2 wt %;
ii) a xylene soluble fraction at 25°° C. ranging from 4.3 wt % to 6.5 wt %; and
iii) a melt flow rate, MFR, measured according to ISO 1133-1:2012 at 230° C. with a load of 2.16 kg, ranging from 0.5 g/10 min to 7.0 g/10 min.

公开(公告)号：US11745158B2

公开(公告)日：2023-09-05

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 ,  C08F2/01 ,  B01J19/24

CPC classification number: B01J19/0033 ,  B01J19/2435 ,  C08F2/01 ,  B01J2208/00044 ,  B01J2208/0061 ,  B01J2208/00672

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.