| abstract |
This invention relates to fluoroaliphatic-sulfonamides and to epoxy compounds modified by the addition of fluoroaliphaticsulfonamido groups. Epoxy resins have been cured in many applications where their propertie, such as chemical resistance, thermal stability, durability, and insulation resistance, are advantageous. for some applications, their relatively high surface energy is a detriment. The high surface energy makes wetting of low energy, hard-to-wet surfaces difficult. This problem can lead to inferior coatings, particularly with respect to appearance and corrosion protection. Compounds containing fluorocarbon groups exhibit low surface enrgy, low oil solubility, low water solubility, low refractive index, low rate of sound transmission, and low dielectric constant. The present invention provides compounds containing (a) a fluoroaliphaticsulfonamido moiety, and (b) a moiety containing (1) at least two oxirane groups, (2) at least two non-terminal N- -hydroxyalkylene groups, or (3) at least one oxirane group and at least one non-terminal N--hydroxyalkylene group. The compound is capable of being cured to give a product having excellent water resistance and oil resistance. |