Distillation: processes – separatory – Addition of material to distilland to inhibit or prevent... – For inhibiting or preventing a polymerization reaction
Reexamination Certificate
2007-10-16
2007-10-16
Manoharan, Virginia (Department: 1764)
Distillation: processes, separatory
Addition of material to distilland to inhibit or prevent...
For inhibiting or preventing a polymerization reaction
C203S100000, C261S128000, C261S114100, C261S114400, C562S600000
Reexamination Certificate
active
09828093
ABSTRACT:
This invention resides in providing a method for the prevention of possible polymerization of the easily polymerizable substance during the purification thereof by a column provided with (a) at least one tray directly fixed to a support ring with a bolt and a nut and/or (b) at least one tray fixed to a support ring with a vertical clamp or a distillation column provided in the lower part thereof with a splash collision plate.
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Haramaki Hidefumi
Mitsumoto Tetsuji
Nakahara Sei
Nishimura Takeshi
Manoharan Virginia
Mathews, Shepherd, McKay & Bruneau, P.A.
Nippon Shokubai Co. , Ltd.
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