TOUGHENED CYANOACRYLATE COMPOSITIONS

摘要

This invention relates to cyanoacrylate-containing compositions that include, in addition to the cyanoacrylate component, a rubber toughening component, which is substantially clear and colorless and which is substantially free of release agents and anti-oxidants known to impair the fixture speeds and shelf life stability of cyanoacrylate compositions to which they are added. As a result, the inventive rubber cyanoacrylate adhesive compositions demonstrate improved properties, such as fixture speed, strength and shelf life under accelerated aging conditions.

主权项

1. A rubber toughened cyanoacrylate adhesive composition, comprising:
(a) a cyanoacrylate component, and (b) a rubber toughening agent consisting essentially of (a) reaction products of the combination of ethylene, methyl acrylate and monomers having carboxylic acid cure sites, and (b) combinations of (a) and dipolymers of ethylene and methyl acrylate, being substantially free of release agents, anti-oxidants, stearic acid and/or polyethylene glycol ether wax.