公开(公告)号：US11098184B2

公开(公告)日：2021-08-24

申请号：US16471986

申请日：2017-12-18

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： Kazuhisa Yasumoto ,  Miyuki Abe ,  Takeshi Nakajima

IPC: C08L23/12 ,  C08L23/08 ,  C08L23/14 ,  C08L53/00

Abstract: A masterbatch composition made from or containing: 65 to 85 wt % of a propylene homopolymer or copolymer as component (1) containing 0 to 3 wt % of ethylene or one or more C4-C10-α-olefin-derived units; and 15 to 35 wt % of a propylene-ethylene copolymer as component (2) containing 25 to 35 wt % of ethylene-derived units, wherein the masterbatch composition has: 1) a melt flow rate (230° C., load: 21.18 N) of 5 to 30 g/10 minutes; 2) xylene insolubles with an Mw of 10×104 to 30×104 and an Mw/Mn of 6 to 20 as measured by GPC; and 3) xylene solubles with an intrinsic viscosity of 5.5 to 9.0 dl/g.