Dow Global Technolgoies LLC

Raghunath Roy

Jeffrey Morris Cogen

Timothy James Person

Manish Talreja

Neil W Dunchus

Thomas Peterson

Thomas Herbert Peterson

Gerrit Groot-Enzerink

Jessica D Drazba

Jessica Drazba

Bharat Indu Chaudhary

Manish K Mundra

Thomas H Peterson

A catalyst system comprising a combination of a tin-based moisture-cure catalyst, a titanium(IV) compound that is titanium dioxide or a titanium alkoxide, and zinc oxide. A catalyst masterbatch comprising the catalyst system and a carrier resin. A moisture-curable prepolymer formulation comprising the catalyst masterbatch and a (hydrolyzable silyl group)-functional polyolefin prepolymer. Methods of making and using same. Cured polymer products made therefrom. Articles containing or made from same.

Catalyst system

The process for making extra high voltage cable insulation is improved by using a composition comprising in weight percent based on the weight of the composition: (A) 95 to 99.9% of an ethylene-based polymer; (B) 0.2 to 2.5% peroxide; (C) 0.01 to 0.5% of a sulfur-containing first antioxidant having at least one &#x2014;S(CH)COR group, wherein R is C6 to C20 alkyl; (D) 0.001 to 0.009%) of a sulfur-containing second antioxidant that does not contain a &#x2014;S(CH)COR group, wherein R is a C6 to C20 alkyl; (E) Optionally, an organic nitrogenous base; and (F) Optionally, a phenolic third antioxidant that does not contain a &#x2014;S(CH)COR group, wherein R is a C6 to C20 alkyl.

Cable insulation compositions comprising a sulfur-containing second antioxidant

The process for making extra high voltage cable insulation is improved by using a composition comprising in weight percent based on the weight of the composition: (A) 95 to 99.9% of an ethylene-based polymer; (B) 0.2 to 2.5% peroxide; (C) 0.01 NI to 0.5% of a sulfur-containing first antioxidant having at least one &#x2014;S(CH)2COR group, wherein R is a C6 to C20 alkyl; (D) 0.001 to 0.009%) of a phosphorus-containing second antioxidant that does not contain a &#x2014;S(CH)C0R group, wherein R is a C6 to C20 alkyl; (E) Optionally, an organic nitrogenous base; and (F) Optionally, a phenolic third antioxidant that does not contain a &#x2014;S(CH)C0R group, wherein R is a C6 to C20 alkyl.

Cable insulation compositions comprising a phosphorus-containing antioxidant

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Midland, MI, United States of America

Raghunath Roy