Title:
The manufacturing process of a porous propylene polymer
Document Type and Number:
Japanese Patent JP6147925
Kind Code:
B2
Abstract:
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 being 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 producing said porous propylene (co)polymer.
Inventors:
Benedetta Gaddy
Marco Bocchino
Gianni Corina
Ofelia Fusco
Simona Guidotti
Antonio Mazucco
Roberto Pantaleoni
Fabrizio Piemontage
Marco Bocchino
Gianni Corina
Ofelia Fusco
Simona Guidotti
Antonio Mazucco
Roberto Pantaleoni
Fabrizio Piemontage
Application Number:
JP2016522026A
Publication Date:
June 14, 2017
Filing Date:
October 21, 2014
Export Citation:
Assignee:
Basel, Polyolefin, Italy, Sochieta, A Responsorabilita, Limitata
International Classes:
C08F10/06; C08F4/654
Domestic Patent References:
| JP2009509017A |
Foreign References:
| US20120232221 | ||||
| WO2011061134A1 |
Attorney, Agent or Firm:
Satoshi Eto
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