Celanese International Corporation

Exxonmobil Technology and Engineering Company

Exxonmobil Chemical Patents Inc.

Khodabakhsh Irani

Narayanaswami R Dharmarajan

Rainer Kolb

Antonios K Doufas

Eric Paul Jourdain

Zhifeng Bai

Krishnan Anantha Narayana Iyer

Scott H Loyd

David W Abmayr, Jr

Profiles or articles such as automotive seals (e.g., door seals and trunk seals) formed with foamed TPVs can comprise a thermoplastic polyolefin (e.g., polypropylene) and an ethylene-a-olefin-diene terpolymer, which imparts improved elastic properties. The sealing profile can comprise a foamed thermoplastic vulcanizate composition comprising a thermoplastic polyolefin and an ethylene-a-olefin-diene terpolymer elastomer, wherein the ethylene-a-olefin-diene terpolymer elastomer has a weight-average molecular weight Mw of from 200,000 g/mol to 3,000,000 g/mol, a Mw/Mn of 4.0 or lower, and a g'of 0.90 or greater, wherein the foamed thermoplastic vulcanizate composition has a specific gravity of 0.2 to 0.9.

Automotive weather seals formed with thermoplastic vulcanizate compositions

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 (H) 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 Hof 0 J/g to 14 J/g, wherein the Hof the first EP(D)M minus the Hof 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.

Ethylene propylene copolymer compounds for use in layered articles

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Khodabakhsh Irani