公开(公告)号：US10358581B2

公开(公告)日：2019-07-23

申请号：US15360557

申请日：2016-11-23

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Irina Nam ,  Dae Yun Kim ,  Young Jong Kim ,  Won Kim ,  In Cheon Han

IPC: C09J7/00 ,  G02B5/30 ,  B32B7/12 ,  B32B23/08 ,  B32B23/20 ,  B32B27/30 ,  C09J7/10 ,  C09J133/14 ,  B32B27/08 ,  B32B27/18 ,  B32B27/22 ,  B32B27/26 ,  B32B27/28 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  G02F1/1335 ,  C09J133/06

Abstract: An adhesive film for polarizing plates, a polarizing plate including the same, and an optical display including the same are provided. An adhesive film for polarizing plates is formed of an adhesive composition including a (meth)acrylic copolymer and a cellulose ester binder. The (meth)acrylic copolymer contains an alkyl group, a hydroxyl group, an alicyclic group, and a hetero-alicyclic group. The adhesive film has a modulus at 30° C. of about 100,000 Pa or more.

公开(公告)号：US12195643B2

公开(公告)日：2025-01-14

申请号：US17376881

申请日：2021-07-15

Applicant: Samsung SDI Co., Ltd.

Inventor： Seung Jun Lee ,  Dae Yun Kim ,  Il Jin Kim ,  Mi Yeon Yu ,  Woo Jin Jeong ,  Ha Yun Cho

IPC: C09J133/08 ,  C08K5/315 ,  C09J133/10 ,  G02B5/30 ,  G02F1/1335 ,  C08F220/18 ,  C08F220/20 ,  C08F220/30

Abstract: An adhesive film for polarizing plates, a polarizing plate including the same, and an optical display apparatus including the same are provided. An adhesive film for polarizing plates is formed of an adhesive composition including a (meth)acrylic copolymer, an isocyanate curing agent, a metal chelate curing agent, and an antistatic agent, and has a surface resistance difference ΔSR of 1.0 (log(Ω/□)) or less, as calculated by Equation 1 and, in Equation 1, SR1 is 10 (log(Ω/□)) or less.