| abstract |
The present invention relates to curing accelerators that can be used in anaerobic curable compositions, such as adhesives and sealants. These curing accelerators are covered by the following structural formulas: Where X is CH 2 , O, S, NR 4 , CR 5 R 6 or C = O; R is one of hydrogen, alkyl, alkenyl, alkynyl, hydroxyalkyl, hydroxyalkenyl or hydroxyalkynyl or Multiple ones; R 1 -R 6 are each independently selected from hydrogen, halogen, amine, carboxy, nitro, alkyl, alkenyl, alkynyl, hydroxyalkyl, hydroxyalkenyl, hydroxyalkynyl or alkaryl; R 7 is hydrogen or CHR 8 R 9 , wherein R 8 and R 9 are each independently selected from hydrogen, halogen, amine, carboxy, nitro, alkyl, alkenyl, alkynyl, hydroxyalkyl, hydroxyalkenyl, Hydroxyalkynyl or alkaryl; and n is 0 or 1. A particularly desirable example is 1,2,3,4-tetrahydrobenzo-h-quinolin-3-ol. |