점착 테이프

• Main Authors: NAKAO KOTA, SOEJIMA KAZUKI
• Format: Patent
• Language: Korean
• Published: 08.03.2022
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; DYES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; PERFORMING OPERATIONS; POLISHES; TRANSPORTING; USE OF MATERIALS AS ADHESIVES

본 발명의 점착 테이프는, 기재와, 해당 기재의 적어도 편측에 배치된 점착제층을 구비하고, 해당 점착제층이 열팽창성 미소구 및 점착제를 포함하고, 해당 열팽창성 미소구가, 셸과, 해당 셸 내에 포함되는 휘발성 물질로 구성되고, 해당 셸을 구성하는 수지가 카르복실기를 갖는 구성 단위를 포함한다. 일 실시 형태에 있어서는, 상기 셸을 구성하는 수지의 유리 전이 온도(Tg)가 120℃ 이상이다. The present invention provides a pressure-sensitive adhesive tape, including: a base material; and a pressure-sensitive adhesive layer arranged on at least one side of the base material, wherein the pressure-sensitive adhesive layer contains thermally expandable microspheres and a pressure-sensitive adhesive, wherein the thermally expandable microspheres are each formed of a shell and a volatile substance contained inside the shell, and wherein a resin forming the shell contains a constituent unit having a carboxyl group. In one embodiment, the resin forming the shell has a glass transition temperature (Tg) of 120°C or more.