Invention Application
- Patent Title: PROCESS FOR THE PREPARATION OF SOFT PROPYLENE POLYMER COMPOSITIONS
- Patent Title (中): 制备软丙烯聚合物组合物的方法
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Application No.: US12451595Application Date: 2008-05-07
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Publication No.: US20100121000A1Publication Date: 2010-05-13
- Inventor: Camillo Cagnani , Enrico Beccarini , Glaudio Cavalieri
- Applicant: Camillo Cagnani , Enrico Beccarini , Glaudio Cavalieri
- Applicant Address: IT Milan
- Assignee: BASELL POLIOLEFINE ITALIA S.R.L.
- Current Assignee: BASELL POLIOLEFINE ITALIA S.R.L.
- Current Assignee Address: IT Milan
- Priority: EP07108668.0 20070522
- International Application: PCT/EP2008/055587 WO 20080507
- Main IPC: C08F2/34
- IPC: C08F2/34
Abstract:
A process for the preparation of a propylene copolymer composition having a Flexural modulus lower than 500 MPa, a total ethylene content higher than 9% and a Xylene soluble fraction at room temperature higher than 20% comprising at least one polymerization step carried out in a gas-phase polymerization reactor comprising at least two interconnected polymerization zones said process being characterized by the fact that at least 30% by weight of said xylene soluble fraction is produced in the polymerization step carried out in a gas-phase polymerization reactor comprising at least two interconnected polymerization zones.
Public/Granted literature
- US07981982B2 Process for the preparation of soft propylene polymer compositions Public/Granted day:2011-07-19
Information query
