Method for immediately terminating radical polymerizations, inhibitor solution, and use thereof
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United States of America Patent
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Feb 27, 2018
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app pub date -
Dec 4, 2013
filing date -
Jan 5, 2013
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Abstract
A method is described for immediately terminating free radical polymerizations by adding an inhibitor solution comprising a phenothiazine compound and/or a monoalkyl ether of hydroquinone to the free radical polymerizing system. The method is characterized in that the solvent of the inhibitor solution comprises at least 50% by weight of the solvent of alkylene glycol and/or polyalkylene glycol and/or terminally etherified derivatives of alkylene glycol and/or of polyalkylene glycol. The method permits the use of nontoxic inhibitor solutions.
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