ADHESIVE COMPOSITION ADHESIVE SHEET OPTICAL MEMBER AND IMAGE DISPLAY DEVICE PRODUCED USING THE SAME

• Main Authors: LEE SEUNGWOO, YOU JONG MIN, KIM JUNG HEE
• Format: Patent
• Language: English; Korean
• Published: 04.09.2019
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS AS ADHESIVES

The present invention relates to an adhesive composition comprising: a block copolymer including a polymer block a and a polymer block b based on a (meth)acrylate unit as a main material, and having Tg of -50°C to 10°C; and a multifunctional ketopropene compound containing two or more ketopropenyl groups represented by chemical formula 1. The adhesive composition has excellent adhesion durability, suppresses haze generation and has the low degree of curing shrinkage during curing. 본 발명에 따른 점착제 조성물은 (메트)아크릴레이트 단위를 주제로 하는 중합체 블록 a와 중합체 블록 b를 포함하고, Tg가 -50℃ 내지 10℃인 블록 공중합체; 및 화학식 1로 표시되는 케토프로페닐기를 2개 이상 함유하는 다관능성 케토프로펜계 화합물;을 포함하는 것을 특징으로 한다. 본 발명에 따른 점착제 조성물은 점착 내구성이 우수하고, 헤이즈 발생이 억제되며 경화 시 경화 수축 정도가 낮은 이점이 있다.