Adhesion of fluoric resin

Abstract

Abstract PURPOSE:To securely adhere fluoric resin products together at a high strength in a short time by such an arrangement wherein the surface of a fluoric resin product to which other is adhered is treated by corona discharge and epoxy resin is used as a primer and thermoplastic polyester is used as an adhesive. CONSTITUTION:Fluoric resin products are adhered together by such a method wherein the surface of a fluoric resin product (preferably, copolymer resin of tetrafluoroethylene-ethylene shown by the formula) to which other product is adhered is treated by corona discharge, and epoxy resin (preferably, bisphenol A type epoxy resin of which epoxy equivalent is more than 800) is coated on the surface under such baking conditions preferably as 150-200 deg.C and for 10sec- 30min as a primer so that its film thickness becomes 5-300mg/dm<2>, and as an adhesive, thermoplastic polyester (preferably, one of which melting temperature is 80-200 deg.C and reduction viscosity is 0.2-1.0g/dl) or polyamide (preferably, one of which melting temperature is 80-200 deg.C and relative viscosity is 1.3- 2.0) is used.

Inventors

• 👤 Sukeyuki Ishibashi
• 👤 石橋　祐之
• 👤 Kunio Tawara
• 👤 邦夫 俵
• 👤 Yoshiaki Fujimoto
• 👤 藤本　嘉明

Bibliographic Details