| 摘要 |
An adhesive composition and a polarizing plate, the adhesive composition including an isocyanate curing agent and having a creeping distance decrease rate of 10% or less, wherein the creeping distance decrease rate is calculated by Equation 1:
Creeping distance decrease rate (%)=|(A−B)/A|×100, [Equation 1]wherein, in Equation 1, A and B are creeping distances of an adhesive layer prepared from the composition, when a force of 2.25 kg is applied to a polarizing plate at 25° C. for 1,000 seconds after the polarizing plate formed with the adhesive layer is attached to a glass plate and left at 35° C. and 45% RH for 24 hours and for 36 hours, respectively. |
| 主权项 |
1. An adhesive composition comprising an isocyanate curing agent and an acrylic copolymer, and having a creeping distance decrease rate of 10% or less,
wherein the creeping distance decrease rate is calculated by Equation 1:
Creeping distance decrease rate (%)=|(A−B)/A|×100, [Equation 1] wherein, in the Equation 1, A and B are creeping distances of an adhesive layer prepared from the adhesive composition, when a force of 2.25 kg is applied to a polarizing plate at 25° C. for 1,000 seconds after the polarizing plate formed with the adhesive layer is attached to a glass plate and left at 35° C. and 45% RH for 24 hours and for 36 hours, respectively, wherein the isocyanate curing agent is represented by Formula 1: wherein, in the Formula 1, R1, R2, R3, R4, and R5 are each independently selected from the group of hydrogen, —(CH2)n1—NCO, and —(CH2)n2—NCO, provided that two of R1, R2, R3, R4, and R5 are —(CH2)n1—NCO and —(CH2)n2—NCO, respectively, and n1 and n2 are each independently integers from 2 to 10, wherein the acrylic copolymer includes a copolymer of a hydroxyl group containing (meth)acrylic acid ester and (meth)acrylic acid alkyl ester. |
