公开(公告)号：US20200270432A1

公开(公告)日：2020-08-27

申请号：US16063087

申请日：2016-12-13

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Kyle G. KUMMER ,  Jeffrey C. MUNRO ,  Lisa MADENJIAN

IPC: C08L23/08 ,  C08J9/10

Abstract: Foam compositions comprise at least an ethylene/α-olefin interpolymer. The ethylene/α-olefin interpolymers of the present disclosure are multi-block copolymers comprising at least one soft block and at least one hard block. The foam compositions can further comprise a blowing agent and a cross-linking agent. Methods of making the foam compositions and foamed articles made from the foam compositions are also described.

公开(公告)号：US20180282533A1

公开(公告)日：2018-10-04

申请号：US15572561

申请日：2016-05-04

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Mary Ann JONES ,  Kim L. WALTON ,  Jeffrey C. MUNRO ,  Yushan HU

IPC: C08L23/08 ,  C08J3/00

CPC classification number: C08L23/0815 ,  C08J3/005 ,  C08J2323/08 ,  C08J2453/00 ,  C08L23/10 ,  C08L23/14 ,  C08L53/00 ,  C08L2205/03 ,  C08L2205/035 ,  C08L2205/06

Abstract: Embodiments relate to a high melt flow thermoplastic polyolefin composition and of a method of preparing a high melt flow thermoplastic polyolefin composition, in which the composition includes from 5 wt % to 45 wt % of a modifier including a blend of from 5 wt % to 40 wt % of a block composite and from 60 wt % to 95 wt % of a polyolefin copolymer, based on a total weight of the modifier, and from 30 wt % to 95 wt % of a polypropylene polymer base that has a melt flow rate of at least 40 g/10 min. The high melt flow thermoplastic polyolefin composition has a blended melt flow rate of at least 25 g/10 min and an MFR ratio is less than 2.0, the MFR ratio being a ratio of the melt flow rate of the polypropylene polymer base to the blended melt flow rate of the high melt flow thermoplastic polyolefin composition.