| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an adhesive composition which exhibits excellent tack properties after crosslinking treatment, particularly excels in removability, does not cause lifting and peeling by heat treatment and high moisture treatment, and is suitably used in a color display such as a liquid crystal display. <P>SOLUTION: The adhesive composition is obtained by adding 5-30 pts.wt. polyisocyanate curing agent (B) to 100 pts.wt. urethane resin (A), and the urethane resin (A) is obtained by further reacting a cyclic acid anhydride (E) with a polyurethane urea (Ay) obtained by reacting a urethane prepolymer (Ax) obtained by reacting a polyisocyanate (a1) with a polyol (a2), a polyamino compound (C) having a hydroxyl group, and a reaction terminator (D), and the acid value of the urethane resin (A) is 2-80 mgKOH/g. <P>COPYRIGHT: (C)2011,JPO&INPIT |
