Fluoroaliphatic sulfonamides containing oxirane groups and/or N-B-hydroxyalkylene groups
申请人:MINNESOTA MINING AND MANUFACTURING COMPANY
公开号:EP0125826A2
公开(公告)日:1984-11-21
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.
本发明涉及氟脂族磺酰胺和通过添加氟脂族磺酰胺基团改性的环氧化合物。环氧树脂已在许多应用中固化,在这些应用中,环氧树脂的耐化学性、热稳定性、耐久性和绝缘性等特性都是有利的。高表面能使低能、难润湿的表面难以润湿。这个问题会导致涂层质量下降,尤其是在外观和防腐蚀方面。含有碳氟化合物基团的化合物具有低表面能、低油溶性、低水溶性、低折射率、低声音传播率和低介电常数。本发明提供了含有(a)氟脂基磺酰胺基,和(b)含有(1)至少两个环氧乙烷基团,(2)至少两个非末端 N-羟基烷基,或(3)至少一个环氧乙烷基团和至少一个非末端 N-羟基烷基的基团的化合物。该化合物经固化后可制成具有优异耐水性和耐油性的产品。