Title:
Nucleated propylene system polyolefin constituent
Document Type and Number:
Japanese Patent JP6154063
Kind Code:
B2
Abstract:
A polyolefin composition, particularly fit for the production of extrusion blow molded articles, comprising (a) a propylene-ethylene copolymer having a content of units deriving from ethylene of 4.0 % by weight or higher, and (b) a nucleating agent and having a crystallization temperature (Tc) higher than 117°C can be obtained by copolymerizing propylene and ethylene in the presence of a catalyst system obtained by contacting a solid catalyst component comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being present in an amount from 40 to 90% by mol with respect to the total amount of donors and selected from succinates and the other selected from 1,3 diethers, an aluminum hydrocarbyl compound, and optionally an external electron donor compound.
Inventors:
Monica Galvan
Andrea Nouman
Tiziana Caputo
Antonio Mazucco
Giampaolo Peregatti
Andrea Nouman
Tiziana Caputo
Antonio Mazucco
Giampaolo Peregatti
Application Number:
JP2016506823A
Publication Date:
June 28, 2017
Filing Date:
March 12, 2014
Export Citation:
Assignee:
Basel, Polyolefin, Italy, Sochieta, A Responsorabilita, Limitata
International Classes:
B29C49/04; C08L23/16; C08F4/658; C08K5/098; C08K5/1575; C08K5/523
Domestic Patent References:
| JP2009120803A | ||||
| JP11323146A | ||||
| JP2009541516A |
Foreign References:
| WO2012139897A1 | ||||
| WO2007090519A1 | ||||
| WO2011061134A1 |
Attorney, Agent or Firm:
Satoshi Eto