Adhesive composition and method for manufacturing the same

• Main Authors: SEO MIN HYE, SEOK WOONG CHEOL, SONG HO JUN, KANG JU HUI, LEEM JONG TAE, LEE SANG KUG
• Format: Patent
• Language: English; Korean
• Published: 02.12.2021
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; 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 MATERIALS AS ADHESIVES

The present invention provides a pressure-sensitive adhesive composition and a preparation method thereof. The pressure-sensitive adhesive composition according to one embodiment of the present invention comprises: a silicone urethane oligomer including a polyurethane main chain that has methacrylate groups at both ends thereof, and a polysiloxane side branch connected to the polyurethane main chain. The present invention may have the effect that a photocurable pressure-sensitive adhesive composition having excellent flexibility, flexural resistance, and viscoelastic stability according to temperature change as well as high peel strength, while remaining constant over a certain level of elasticity and hardness, and a preparation method thereof are provided. 본 발명의 일실시예는 접접착제 조성물 및 이의 제조방법을 제공한다. 본 발명의 일 실시예에 따른 점접착제 조성물은, 양 말단에 메타크릴레이트기를 갖는 폴리우레탄 주쇄; 및 상기 폴리우레탄 주쇄에 연결된 폴리실록산 곁가지;를 포함하는 실리콘-우레탄 올리고머를 포함한다. 본 발명의 일 실시예에 따르면, 일정 수준 이상의 탄성 및 경도를 확보하면서도 유연성 및 내굴곡성, 및 온도에 따른 점탄성 안정성이 우수하고, 박리 강도가 높은 광경화성 점접착제 조성물 및 이의 제조방법을 제공 가능한 효과가 있다.