Dow Global Technolgoies LLC

The Dow Chemical Company

Rony S Vanspeybroeck

Gilbert Bouquet

Mercedes R Galobardes

Joseph M Ceraso

Dominique Maes

Sean W Ewart

Mary Ann Jones

Thomas Davidian

Daniela Ferrari

Evelyn Auyeung

Nicolaas M Hermans

Doninique Maes

Adrianus Ruiter

Tim Pope

Kees-Jeen Van Duin

Dominque Maes

A solution polymerization process for producing ethylene-based polymer includes introducing ethylene monomer, hydrocarbon solvent, and Ziegler-Natta catalyst into an entrance of a solution polymerization reactor. An ethylene-based polymer is produced by solution polymerizing the ethylene monomer in hydrocarbon solvent. Subsequently, a catalyst deactivator is introduced into x the exit of the solution polymerization reactor, thereby producing hydrochloric acid byproduct. The catalyst deactivator includes long chain carboxylate and at least one cation selected from Groups 1, 2, and 12 of the IUPAC periodic table, with the exception of calcium. The catalyst deactivator reduces the effectiveness of the Ziegler-Natta catalyst and neutralizes the hydrochloric acid by forming a chloride salt other than calcium chloride.

Ziegler-Natta catalyst deactivation and neutralization

Disclosed is a mass polymerized rubber-modified monovinylidene aromatic copolymer composition with an excellent balance of physical and mechanical properties especially low temperature impact, and methods for preparing such a composition.

Mass polymerized rubber-modified monovinylidene aromatic copolymer composition

The present invention relates to a mass polymerized rubber-modified polymeric composition comprising a continuous matrix phase of a polymer of a monovinylidene aromatic monomer, and optionally, an ethylenically unsaturated nitrile monomer, and rubber particles produced from a functionalized diene rubber.

High gloss rubber modified monovinylidene aromatic polymers produced by a mass polymerization process

Disclosed is a mass polymerized rubber-modified monovinylidene aromatic copolymer composition with an excellent balance of physical and mechanical properties and high intrinsic gloss, and methods for preparing such a composition.

Mass polymerized rubber-modified monovinylidene aromatic copolymer compositions

Rubber modified monovinylidene aromatic polymer compositions

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Bellem, Belgium

Rony S Vanspeybroeck