| abstract |
Cure accelerators for anaerobic curable compositions, such as adhesives and sealants, are provided, and which are defined with reference to the compounds shown in structure I n nwhere A is CH 2 or benzyl, R is C 1-10 alkyl, R′ is H or C 1-10 alkyl, or R and R′ taken together may form a four to seven membered ring fused to the benzene ring, R″ is optional, but when R″ is present, R″ is halogen, alkyl, alkenyl, cycloalkyl, hydroxyalkyl, hydroxyalkenyl, alkoxy, amino, alkylene- or alkenylene-ether, alkylene (meth)acrylate, carbonyl, carboxyl, nitroso, sulfonate, hydroxyl or haloalkyl, and EWG is as shown, an electron withdrawing group, such as nitro, nitrile, carboxylate or trihaloalkyl. |