| 摘要 |
<p>The present invention relates to an adhesive which exhibits excellent adhesiveness, transparency, whiteness resistance, expansion resistance and exfoliation resistance and has step curving performance. The adhesive of the present invention comprises an acrylic copolymer (A), a polyisocyanate based curing agent (B) and a silane coupling agent (C). The acrylic copolymer (A) is a polymer with the weight-average molecular weight of 200000-1000000 formed by radical-polymerizing 20-90 wt% of an ethylenically unsaturated monomer (A1) having an alkyl group with SP value of 8-9.00 and 10-80 wt% of an ethylenically unsaturated monomer (A2) having a polar group with SP value of 9.00-15. The ethylenically unsaturated monomer (A2) includes at least one selected from the group consisting of a hydroxyl group (a1), an amide group (a2), an amino group (a3), a nitrile group (a4) and a carboxyl group (a5) and has a glass transition temperature (Tg) of -40 to 120°C.</p> |
