公开(公告)号：US20170240735A1

公开(公告)日：2017-08-24

申请号：US15505475

申请日：2015-08-20

申请人： Dow Global Technologies LLC

发明人： Yi Jin ,  Kim L. Walton ,  Morgan M. Hughes ,  Thomas W. Karjala ,  Lamy J. Chopin lll ,  Dean Lee ,  Rongjuan Cong

IPC分类号： C08L23/16

CPC分类号： C08L23/16 ,  C08L23/14 ,  C08L23/142 ,  C08L53/00 ,  C08L2205/025 ,  C08L2205/035 ,  C08L2205/24 ,  C09J123/142 ,  C09J123/20 ,  C09J153/00

摘要： A composition includes (A) 30-95 wt % of a random or homogeneous propylene-based interpolymer having: (i) a comonomer content of at least one of C2 and C4-10 α-olefins of 7 wt % to 49 wt % based on the total weight of the propylene-based interpolymer, (ii) a density of 0.90 g/cc or less, and (iii) an MFR of 1 g/10 min or greater (230° C./2.16 kg); and (B) 5-70 wt % of a block composite nucleator comprising: (1) a first polymer that includes polypropylene; (2) a second polymer that includes an alpha-olefin based polymer, the alpha-olefin being selected from at least one of a C2 and C4-10 α-olefins, and (3) a block copolymer having a first segment and a second segment, the first segment of the block copolymer having the same composition as the first polymer in the block composite nucleator and the second segment of the block copolymer having the same composition as the second polymer of the block composite nucleator.