Patent ID: 7863358

Claim:
An anionically polymerizable 2-cyanoacrylate composition comprising: a 2-cyanoacrylate; (1) a hindered phenol compound selected from the group consisting of 2,2â€²-methylene-bis-(4-methyl-6-t-butylphenol), 2,2â€²-methylene-bis-(4-ethyl-6-t-butylphenol), 2,2â€²-methylene-bis-(4-methyl-6-cyclohexylphenol), 2,2â€²-methylene-bis-(6-1-methylcyclohexyl)-p-cresol, 2,2â€²-ethylidene-bis-(2,4-methyl-6-t-butylphenol), 2,2â€²-butylidene-bis-(2-t-butyl-4-methylphenol), and 2-t-butyl-6-(3â€²-t-butyl-5â€²-methyl-2â€²-hydroxybenzyl)-4-methylphenyl acrylate and (2) at least one compound having a clathrating ability selected from the group consisting of 15-Crown-5-ether and 12-Crown-4-ether, wherein said composition contains said hindered phenol compound in an amount of 100 to 10,000 ppm by mass relative to the 2-cyanoacrylate.