公开(公告)号：EP3331701A1

公开(公告)日：2018-06-13

申请号：EP16741912.6

申请日：2016-07-19

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： MASSARI, Paola ,  CATHELIN, Caroline ,  CAVALIERI, Claudio ,  CIARAFONI, Marco ,  FELISATI, Andrea ,  FERRARO, Angelo ,  MORINI, Giampiero ,  PIEMONTESI, Fabrizio ,  VITALE, Gianni

IPC: B32B27/32 ,  C08J5/18 ,  C08L23/14

Abstract: A polyolefin composition comprising: A) from 19 wt% to 50 wt% of a propylene ethylene copolymer having an ethylene derived units content ranging from 1.5 wt% to 6.0 wt% B) from 50 wt% to 81 wt% of a propylene ethylene 1-butene terpolymer having an ethylene derived units content ranging from 1.5 wt% and 6.0 wt% and 1-butene derived units content of between 4.8 wt% and 12.4 wt%; the sum of the amount of component A) and B) being 100; the composition being characterized by the following features: molecular weight distribution (MWD), expressed in terms of Mw/Mn, greater than 4.0; the creep and recovery curve measured on the polymer fuse at 200°C measured according to the procedure reported in the characterizing section shows a maximum value between 600 and 1200 seconds lower than 53x10-51/Pa.

公开(公告)号：EP2768898B1

公开(公告)日：2018-09-19

申请号：EP12775021.4

申请日：2012-10-19

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： MARZOLLA, Roberta ,  GALVAN, Monica ,  FERRARO, Angelo

IPC: C08L23/12

CPC classification number: C08L23/12 ,  C08L23/0815 ,  C08L2666/06

Abstract: A polyolefin compositions comprising: A) From 77 wt% to 90 wt%, of a propylene homopolymer having the fraction soluble in xylene at 25°C lower than 2 wt%; B) from 10 wt% to 23 wt% of a copolymer of ethylene with one C 4 -C 10 alpha-olefin containing from 20 wt% to 30 wt%, of said C 4 -C 10 alpha-olefin derived units; said composition having - the value of melt flow rate (MFR) at 230 °C, 2.16 kg of from 0.5 to 4.5 g/10 min; - the total content of ethylene of from 10 wt% to 18 wt%; - the value of the intrinsic viscosity of the total fraction soluble in Xylene at 25°C (AMXSIVtot) is less than 1.5 dl/g.

公开(公告)号：EP2445962A1

公开(公告)日：2012-05-02

申请号：EP10727722.0

申请日：2010-06-23

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： GALVAN, Monica ,  CIARAFONI, Marco ,  PANTALEONI, Roberto ,  FERRARO, Angelo

IPC: C08L23/10 ,  B29C45/00 ,  C08J5/18

CPC classification number: C08J5/18 ,  C08J2323/10 ,  C08L23/0807 ,  C08L23/0815 ,  C08L23/10 ,  C08L2666/06

Abstract: Polyolefin compositions particularly suitable for cast film, exhibiting heat sealability, retortability, low haze and stiffness, comprising: 1) 75-85% of a propylene homopolymer or copolymer of propylene with ethylene and/or one or more C
4 -C
10 α-olefin(s), the homopolymer or copolymer having melting temperature equal to or higher than 150°C, 2) 15-25% of a copolymer of ethylene with one or more C
4 -C
10 α-olefin(s) containing from 20 to 30% of said C
4 -C
10 α-olefin(s); said composition having MFR (at 230°C, 2.16 kg) of from 5-10 g/10 min, the total content of ethylene of from 10 to 20 %, the total content of C
4 -C
10 α-olefin(s) of from 2 to 8 %, the ratio XStot/XSm of the total fraction soluble in Xylene at room temperature to the fraction soluble in Xylene at room temperature of the matrix component (1) of from 5 to 15, and the value of the intrinsic viscosity of the total fraction soluble in Xylene at room temperature (XSIVtot) of 1.5 dl/g or less.

公开(公告)号：EP2445962B1

公开(公告)日：2013-06-05

申请号：EP10727722.0

申请日：2010-06-23

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： GALVAN, Monica ,  CIARAFONI, Marco ,  PANTALEONI, Roberto ,  FERRARO, Angelo

IPC: C08L23/10 ,  B29C45/00 ,  C08J5/18

CPC classification number: C08J5/18 ,  C08J2323/10 ,  C08L23/0807 ,  C08L23/0815 ,  C08L23/10 ,  C08L2666/06