Rohm and Haas Company

James Kent Carpenter

Richard Shu-Hua Wu

Jeremia Jesaja Venter

Robert Hugh Schwartz

Jeanine Lee Hurry

Spencer Wayne Bruce

Joseph Richard Povernick

Adam Loyack

Frank Randolph Robertson, Iii

Colin Gouveia

Zoya Rudik

A process for continuously stripping a polymer dispersion comprising a heat exchanger with minimal internal obstructions for the stripper. The process is particularly adapted to dispersions that are heat and shear sensitive. The process is able to extract hydrophobic VOC's more efficiently than a single, jacketed tube design.

Process for stripping polymer dispersions

This invention relates to a process for cleaning reactors. The process utilizes a solvent fed from multiple pressure sources to clean reactors of residual polymers. The reactors are equipped with agitators and stationary nozzles aimed at the agitator blades. The agitator is rotated during cleaning. The process may also utilize heated aqueous base to clean heat exchangers in external loops. In one aspect, a mixture of at least one organic solvent and aqueous base are utilized to clean certain reactors.

Process for cleaning reactors

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Lambertville, NJ, United States of America

James Kent Carpenter