CA with Acrylates or Styrenes

Alicyclic mono and diacrylates from alpha-pinene and beta-pinene were synthesised and characterized spectroscopically. They were compounded in alkyl 2-cyanoacrylate adhesives as crosslinkers. Their effect on the adhesive bond strengths after exposing the adhesive bonds to various temperatures, was studied.

Adhesive properties of β-vinyl-α-cyanoacrylates and their anionic copolymerization with α-cyanoacrylates are studied. The ability of bifunctional β-vinyl-α-cyanoacrylates to enhance the thermal stability of cyanoacrylate adhesives is demonstrated.

Various alkyl2-bromoacrylates were synthesized in high purity and yield. They were characterized by spectroscopic techniques. The monomers were then formulated into aerobic adhesive compositions and their adhesive bond strengths between various surfaces were evaluated.

A cyanoacrylate adhesive composition having an acrylic monomer toughening agent. Preferably, the acrylic monomers are selected from the group consisting of methyl methacrylate, butyl acrylate, cyclohexyl acrylate, isobornyl acrylate, and combinations thereof. A useful amount of acrylic monomers is about 1.0% by weight to about 10.0% by weight, preferably about 1.0% by weight to about 5.0% by weight, and more preferably about 2.0% by weight to about 5.0% by weight.