Patent ID: 7709676
Filing Date: 2010-05-04
Classification: C07C

Abstract:
1. A method for producing a purified 2-cyanoacrylate by distilling a crude 2-cyanoacrylate in the presence of a polymerization inhibitor, characterized in that an anionic polymerization inhibitor having a boiling point at normal pressure of within ±12° C. of the boiling point at normal pressure of the purified 2-cyanoacrylate is used as the polymerization inhibitor, wherein the anionic polymerization inhibitor is a halocarboxylic acid, a halosulfonic acid, a BF wherein distillation is carried out by further adding, to a 2-cyanoacrylate in a vessel, an anionic polymerization inhibitor having a boiling point that is higher than the boiling point of the 2-cyanoacrylate by more than 12° C. and a radical polymerization inhibitor having a boiling point that is higher than the boiling point of the 2-cyanoacrylate by more than 12° C.