| abstract |
PURPOSE: To obtain an epoxy resin composition improved in room temperature storage stability and the elasticity of a cured product by mixing an epoxy resin with a specified ketimine derivative, a modified silicone resin and a catalyst for this resin. n CONSTITUTION: A ketimine (a) of the formula [wherein R 1 to R 4 are each H, 1-6C alkyl or (alkyl)phenyl; X 1 to X 3 are each 2-6 C alkylene; and m is 0-1] is reacted with at least 0,5mol, per imino group of component (a), at least one member (b) selected from among styrene oxide, butyl-, allyl-, p-tert-butylphenyl-, p-sec-butylphenyl-, m- or p-cresyl, p-cresyl glycidyl ether, vinylcyclohexane dioxide, etc., under anhydrous conditions to obtain a ketimine derivative (H) in which the imino group of the skeleton of component (a) is reacted with component (b). 10-200 pts.wt. epoxy resin (A) is mixed with 1-100 pts.wt. component B, 100 pts.wt. modified silicone resin (C) and 0.1-10 pts.wt. catalyst (D) for component C. n COPYRIGHT: (C)1992,JPO&Japio |