ADHESIVE COMPOSITION AND ADHESIVE SHEET USING SAME

• Main Authors: KWON, Hyerim, JUNG, Kyoungmoon, HWANG, Inoh
• Format: Patent
• Language: English; French; Korean
• Published: 06.01.2022
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; DYES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; POLISHES; USE OF MATERIALS AS ADHESIVES

The present invention relates to an adhesive composition containing a urethane oligomer, a dilution monomer, and a photoinitiator, wherein the weight ratio of heteroatoms in the dilution monomer is adjusted, and the permittivity and dissipation factor at 15 GHz of the adhesive layer having a thickness of 150 μm after curing are controlled to be in specific ranges. The adhesive composition according to the present invention may exhibit low dielectric properties suitable for the application to an image display device that requires a high-frequency band or is thinned. La présente invention concerne une composition adhésive contenant un oligomère d'uréthane, un monomère de dilution et un photo-initiateur, le rapport pondéral des hétéroatomes dans le monomère de dilution étant ajusté et la permittivité et le facteur de dissipation à 15 GHz de la couche adhésive présentant une épaisseur de 150 µm après durcissement étant régulés pour être dans des plages spécifiques. La composition adhésive selon la présente invention peut présenter de faibles propriétés diélectriques appropriées pour l'application à un dispositif d'affichage d'image qui nécessite une bande haute fréquence ou qui est aminci. 본 발명은 우레탄 올리고머, 희석 모노머 및 광개시제를 함유하는 점착제 조성물로서, 상기 희석 모노머 내 헤테로원자의 중량 비율이 조절되고, 경화 후 150 ㎛ 두께의 점착제층의 15GHz에서의 유전율과 유전정접이 특정 범위로 제어된 점착제 조성물을 제공한다. 본 발명에 따른 점착제 조성물은 고주파수 대역을 필요로 하거나 박형화된 화상표시장치에 적용하기에 적합한 저유전 특성을 나타낼 수 있다.