Devolatilization apparatus and process

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United States of America Patent

PATENT NO 9345985
APP PUB NO 20130292064A1
SERIAL NO

13933211

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Abstract

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Embodiments of the invention provide an apparatus or process for devolatilization of flowable materials (such as molten polymers with entrained or dissolved solvent or unreacted monomers or comonomers) using a plate heater having heating channels, the design or operation of which heating channels maintains the flowable material above its bubble point pressure during passage through a larger first zone and then induces flashing in, or downstream of, a smaller second zone of the heating channel. The apparatus enables a higher throughput per heating channel while achieving equivalent or better devolatilization, as compared to current devolatilization apparatus.

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Patent Owner(s)

Patent OwnerAddress
DOW GLOBAL TECHNOLOGIES LLC2211 H H DOW WAY MIDLAND MI 48674

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dixit, Ravindra S Lake Jackson, US 16 32
Shirtum, Robert P Rock Springs, US 14 193
Taylor, Craig S Lake Jackson, US 2 3

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