Dow Global Technolgoies LLC

Union Carbide Chemicals & Plastics Technology Corporation

Union Carbide Corporation

Susan Song

Lin Fu

Paul J Caronia

Jeffrey Morris Cogen

Timothy James Person

Neil W Dunchus

Antoni Adamczyk

Daniel Emley

Brian W Walther

Neil Dunchus

Danel Emley

Polymeric compositions suitable for use as insulation materials in electrical applications. Such polymeric compositions comprise an ethylene/&#x3b1;-olefin-based elastomer and a filler, where the filler consists essentially of an amorphous silica. Such polymeric compositions can optionally further comprise an ethylene-based thermoplastic polymer. Also disclosed are coated conductors comprising such polymeric compositions as insulation materials.

Elastomer-based polymeric compositions having amorphous silica fillers

The present disclosure is directed to a composition and articles containing the composition. The composition includes an ethylene-propylene-diene interpolymer (EPDM) having a rheology ratio greater than 33. The EPDM also has a molecular weight distribution greater than 3.0. The composition has a dissipation factor less than or equal to 0.01 radians as measured in accordance with ASTM D 150 (130&#xb0; C., 60 Hz).

Ethylene propylene-diene interpolymer composition

Thiobis phenolic antioxidants are efficiently dry or melt blended with a tree-resistant, crosslinkable polyethylene by first forming a blend, preferably a dry blend, of the antioxidant with a polyalkylene glycol (PAG), and then mixing the blend with the polyethylene. The incorporation of thiobis phenolic antioxidant and PAG blend into polyethylene provides the PE with high oxidative induction time (OIT) which is a measure of the oxidative stability of the PE.

Thiobis phenolic antioxidant/polyethylene glycol blends

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Susan Song