Dow Global Technolgoies LLC

George W Haun, Jr

Shrikant Dhodapkar

Pradeep Jain

Sean W Ewart

Harold W Boone

Alec Y Wang

Michael D Turner

Michael Joseph Zogg, Jr

Jorge Rubalcaba

Maria Pollard

Remi A Trottier

Robert D Swindoll

Intan M Hamdan

Bradley K Blanchard

A process to form coated polymer particles comprising polymer particles formed from a polymer composition comprising an olefin-based polymer, and a coating formed from a coating composition comprising an aqueous metal acid dispersion and an aqueous polysiloxane emulsion, said process comprising the following: mixing together the aqueous metal acid dispersion and the aqueous polysiloxane emulsion to form a dispersion/emulsion mixture; applying the dispersion/emulsion mixture to a portion of the surfaces of the polymer particles to form wet-coated polymer particles; drying the wet-coated polymer particles to form the coated polymer particles. The aqueous metal acid dispersion and the aqueous polysiloxane emulsion may also be applied, individually, in separate steps.

Coated olefin-based polymers with reduced blocking

Disclosed herein is a system for solution polymerization comprising a reactor system that is operative to receive a monomer and to react the monomer to form a polymer; a plurality of devolatilization vessels located downstream of the reactor system, where each devolatilization vessel operates at a lower pressure than the preceding devolatilization vessel; and a heat exchanger disposed between two devolatilization vessels and in fluid communication with them, where the heat exchanger has an inlet port temperature of 100&#xb0; C. to 230&#xb0; C., an outlet port temperature of 200&#xb0; C. to 300&#xb0; C., an inlet port pressure of 35 to 250 kgf/cmand an outlet port pressure of 20 to 200 kgf/cm; and wherein the polymer solution remains in a single phase during its residence in the heat exchanger.

Method and system for polymer production

Growing community of inventors

Baton Rouge, LA, United States of America

George W Haun, Jr