Geek1945
Well-Known Member
I'm posting this since to my knowledge only liquid one part cyanoacrylate adhesives are currently available. The current adhesives all have a short 6 months shelf life, especially in humid conditions. It would appear this may lengthen the shelf life in addition to making the product safer/stronger, since the two parts must be mixed. I realize the current super glue reaction can be accelerated with products or just a light dusting with baking soda which also adds some gap filling. BTW I still contend "rivets are soon going to be obsolete" being replaced by stronger adhesives. Ed
Patent - There is provided in one aspect a two part curable composition comprising: (a) a first part comprising a cyanoacrylate component and a cationic catalyst; and (b) a second part comprising a cationically curable component, such as an epoxy component, an episulfide component, an oxetane component, and combinations thereof, and a vinyl ether component, where when mixed together the cationic catalyst initiates cure of the cationically curable component. In addition, the cationically curable component may initiate cure of the cyanoacrylate. The compositions, which are room temperature curable, provide good performance across substrates constructed from a wide variety of materials and provide improved durability performance over conventional cyanoacrylate compositions and improved fixture time and improved plastics bonding over conventional cationically curable compositions.
Patent - There is provided in one aspect a two part curable composition comprising: (a) a first part comprising a cyanoacrylate component and a cationic catalyst; and (b) a second part comprising a cationically curable component, such as an epoxy component, an episulfide component, an oxetane component, and combinations thereof, and a vinyl ether component, where when mixed together the cationic catalyst initiates cure of the cationically curable component. In addition, the cationically curable component may initiate cure of the cyanoacrylate. The compositions, which are room temperature curable, provide good performance across substrates constructed from a wide variety of materials and provide improved durability performance over conventional cyanoacrylate compositions and improved fixture time and improved plastics bonding over conventional cationically curable compositions.
