| abstract |
The present invention relates to a multi-block copolymer, a pressure-sensitive adhesive composition, a process for producing a multi-block copolymer, a pressure-sensitive polarizing plate and a liquid-crystal display, and a pressure- It is possible to exhibit excellent durability regardless. Further, the method for producing the above multi-block copolymer can produce a structurally controlled multi-block copolymer having a molecular weight increased by a simple process using a compound containing two or more halogen elements. When the multi-block copolymer is included in the adhesive resin, And can form a network structure at the time of curing. Therefore, when applied to a pressure-sensitive adhesive composition, it is excellent in durability regardless of temperature and humidity and can be effectively applied to an optical member. |