公开(公告)号：US20230383107A1

公开(公告)日：2023-11-30

申请号：US18032531

申请日：2021-10-06

申请人： Basell Poliolefine Italia S.r.l.

发明人： Eleonora Ciaccia ,  Marco Ciarafoni ,  Caroline Cathelin ,  Alberta De Capua ,  Giansiro Prini ,  Daniele Po ,  Tiziana Caputo ,  Roberto Pantaleoni ,  Alessia Di Capua

IPC分类号： C08L23/12

CPC分类号： C08L23/12 ,  C08L2205/025

摘要： A polypropylene composition made from or containing:



A) from 76 wt % to 95 wt % of a propylene homopolymer having:

fraction soluble in xylene at 25° C. between 2.0 wt % and 4.5 wt %; and
melt flow rate ranging from 60.0 to 110.0 g/10 min; and


B) from 5 wt % to 24 wt % of a copolymer of propylene and ethylene containing from 75 wt % to 90.0 wt % of ethylene derived units;
wherein the polypropylene composition has
content of ethylene derived units in the fraction soluble in xylene at 25° C. lower than the content of ethylene derived units of component B) and ranging from 51.0 wt % to 74.0 wt %; and
at least two melting points, wherein the higher melting points ranges from 156.0° C. to 166.0° C. and the lower melting point ranges from 90.0° C. to 125.0° C.;
wherein the sum of the amounts of component A) and B) being 100 wt %.

公开(公告)号：US20230312897A1

公开(公告)日：2023-10-05

申请号：US18010421

申请日：2021-06-01

申请人： Basell Poliolefine Italia S.r.l.

发明人： Gianpiero Ferraro ,  Claudio Cavalieri ,  Caroline Cathelin ,  Eleonora Ciaccia ,  Marco Ciarafoni ,  Ambra Montaletti ,  Alberta De Capua ,  Roberto Pantaleoni ,  Tiziana Caputo ,  Giansiro Prini ,  Alberto Nardin

IPC分类号： C08L23/14 ,  C08L23/16

CPC分类号： C08L23/142 ,  C08L23/16 ,  C08L2205/025 ,  C08L2203/14 ,  C08L2314/02

摘要： A polypropylene composition made from or containing:



from 70 wt % to 90 wt % of a propylene 1-hexene copolymer containing from 1.0 wt % to 5.0 wt % of 1-hexene derived units and a polydispersity index (PI) between 9.2 and 21.3; and
from 10 wt % to 30 wt % of a copolymer of propylene and ethylene containing from 45.0 wt % to 65.0 wt % of ethylene derived units;
the sum A)+B) being 100.