Patent ID: 9315697
Filing Date: 2016-04-19
CPC Classification: C08F,C09J,C09K,G02B,G02F

Claim Text:
1. A multi-block copolymer, comprising: a first block having a glass transition temperature of −10° C. or less; a second block having a glass transition temperature of 50° C. or more; and a third block having a glass transition temperature of −10° C. or less, wherein the multi-block copolymer is a tri-block copolymer in which the first and third blocks are coupled at both ends of the second block, wherein a crosslinkable functional group is present in the first or third block, and wherein the first or third block comprises a polymerized unit of 90 to 99.9 parts by weight of an acrylic acid ester monomer and 0.1 to 10 parts by weight of a copolymerizable monomer having the crosslinkable functional group.