ADHESIVE SHEET METHOD FOR MANUFACTURING AN ADHESIVE SHEET AND METHOD FOR FORMING AN ADHESIVE LAYER USING THE ADHESIVE SHEET

• Main Authors: BAEK SEUNG HYUB, KANG MIN SOO, HWANG SIN HYE, JEONG JONG HYUN, KANG CHANG SOO, SIM MIN KI
• Format: Patent
• Language: English; Korean
• Published: 04.07.2022
• 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

Disclosed is an adhesive sheet comprising a cross-linked acrylic binder resin. The cross-linked acrylic binder resin has a cross-linked structure formed by a reaction of a linear acrylic polymer and a multifunctional crosslinking agent, a photoreactive benzophenone side chain formed by a reaction of the linear acrylic polymer and a photoreactive crosslinking agent, and a hydrogen donor group formed by a reaction of the linear acrylic polymer and an amide compound. A storage modulus of the cross-linked acrylic binder resin at 1 Hz is 100-1,000 MPa at -25 ℃, 0.03-0.2 MPa at 25 ℃, and 0.01-0.10 MPa at 50 ℃, whereas a glass transition temperature thereof is -15 to 10 ℃. 개시된 접착 시트는, 가교된 아크릴 바인더 수지를 포함한다. 상기 가교된 아크릴 바인더 수지는, 선형의 아크릴계 고분자와 다관능성 가교제의 반응에 의해 형성된 가교 구조, 상기 선형의 아크릴계 고분자와 광반응성 가교제와의 반응에 의해 형성된 벤조 페논 구조의 광반응성 측쇄 및 상기 선형의 아크릴계 고분자와 아미드계 화합물의 반응에 의해 형성된 수소 주개 그룹을 가지며, 1Hz 스토리지 모듈러스가 -25℃에서 100 MPa 내지 1,000 MPa, 25℃에서 0.03 MPa 내지 0.2 MPa, 50℃에서 0.01 MPa 내지 0.10 MPa이고, 유리전이온도는 -15℃ 내지 10℃이다.