Procedure for the continuous fractionation of polymers and relative equipment
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United States of America Patent
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Feb 9, 1993
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N/A
app pub date -
Mar 20, 1991
filing date -
Mar 22, 1990
priority date (Note) -
Expired
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Abstract
Procedure for the continuous fractionation of polymers dissolved in a solvent, which includes at least one complete cycle of the following operations: a. precipitation of a first fraction of polymer inside a first reaction vessel containing the solution; b. transferring the remaining solution into a second reaction vessel and collecting the above first fraction of polymer precipitated in the above first reaction vessel; c. precipitation of a second fraction of polymer inside the second reaction vessel; and d. recycling the remaining solution in the first reaction vessel and collecting the above second fraction of polymer precipitated in the above second reaction vessel.
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