| 摘要 |
PURPOSE: To obtain a pressure-sensitive adhesive composition excellent in durabil ity by mixing an acrylic resin with a reaction product among a plurality of silane compounds represented by specified formulas, a curing agent and option ally a curing aid. CONSTITUTION: A silane compound represented by formula I (R1 to R3 are each alkyl or alkoxyl; X is glycidoxy, isocyanate or the like; and n is 0-20) (e.g.γ-glycidoxypropyltrimethoxysilane) is reacted under heating with a silane compound represented by formula II [Y is -NHR4 (R4 is H, alkyl or the like), mercapto or hydroxyl; and m and 1 are each 0-20] (e.g.γ- aminopropyltrimethoxysilane) in a molar ratio in the range of 1000/0 to 1/10000 to obtain a reaction product. 0.0001-10 pts.wt. this product is mixed with 100 pts.wt. acrylic copolymer obtained by polymerizing monomers (e.g. n-butyl acrylate and acrylic acid), 0.01-10 pts.wt. curing agent (e.g. isocyanate compound) and a curing aid to obtain a pressure-sensitive adhesive composition excellent in durability.
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