Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Reexamination Certificate
2007-08-07
2007-08-07
Puttlitz, Karl (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
C202S182000
Reexamination Certificate
active
10641653
ABSTRACT:
A method for refining an easily polymerizable matter while preventing an easily polymerizable matter-containing substance from being polymerized and an apparatus for use in the method are disclosed. The method and apparatus for refining and separating the easily polymerizable matter-containing substance by the use of a distillation column provided with a heat exchanger set the linear velocity of a vapor in a connecting line intervening between the distillation column and the heat exchanger at a level of not less than 5 m per second and the retention time of the vapor at a level of not more than 3 seconds.
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Matsumoto Yukihiro
Nishimura Takeshi
Mathews, Shepherd, McKay & Bruneau, P.A.
Nippon Shokubai Co. Ltd
Puttlitz Karl
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