公开(公告)号：US11965085B2

公开(公告)日：2024-04-23

申请号：US17419039

申请日：2020-01-10

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Zhifeng Bai ,  Scott H. Loyd ,  Narayanaswami Dharmarajan ,  Rainer Kolb ,  David W. Abmayr, Jr. ,  Khodabakhsh Irani

IPC: C08L23/16 ,  B32B1/08 ,  B32B25/04 ,  B32B25/14 ,  F16G5/22

CPC classification number: C08L23/16 ,  B32B1/08 ,  B32B25/042 ,  B32B25/14 ,  B32B2270/00 ,  B32B2413/00 ,  B32B2419/06 ,  B32B2597/00 ,  C08L2201/08 ,  C08L2205/025 ,  C08L2205/03 ,  C08L2207/322 ,  F16G5/22

Abstract: A multilayer structure can include at least one layer that comprises an ethylene propylene diene copolymer compound that comprises: 60 parts per hundred rubber (phr) to 95 phr of a first ethylene propylene diene copolymer (EP(D)M) having an ethylene content of 62 wt % to 90 wt % based on the first EP(D)M and a heat of fusion (Hf) of 15 J/g or greater; 5 phr to 40 phr of an second EP(D)M having an ethylene content of 40 wt % to 60 wt % based on the second EP(D)M and a Hf of 0 J/g to 14 J/g, wherein the Hf of the first EP(D)M minus the Hf of the second EP(D)M is 5 J/g or greater; wherein the first EP(D)M and second EP(D)M combined are 100 parts; a filler at 40 phr to 500 phr; and a curing agent at 0.5 phr to 20 phr.