Process for preparing alpha -cyanoacrylate type compounds and adhesive composition comprising alpha -cyanoacrylate type compound obtained by the process as its main component

摘要

A process for preparing an alpha -cyanoacrylate compound characterized by the steps of thermally depolymerizing a condensation product obtained from a cyanoacetic acid ester, and formaldehyde or a polymer thereof using as a catalyst a polymerizable imine represented by the formula <IMAGE> wherein R1 and R2 are the same or different and are each CH3 or H to obtain a crude monomer, and rectifying the crude monomer and an adhesive composition comprising as its main component an alpha -cyanoacrylate compound prepared by the above process.