Process for the devolatilization of polymer solutions
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United States of America Patent
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Jan 28, 1992
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N/A
app pub date -
Jan 16, 1991
filing date -
Jul 26, 1988
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Abstract
A process for the devolatilization of polymer solutions including: (a) feeding the solution to a zone of indirect thermal exchange in which the ratio between the surface of thermal exchange and the flow per hour of the solution is over 80 m.sup.2 /m.sup.3 /h; (b) moving the solution forward into each channel at a speed below 0.5 mm/second; (c) keeping the solution of the polymer in each channel for about 120-200 seconds; and (d) separating the volatile components from the devolatilized polymer solution.
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