DOUBLE-SIDED ADHESIVE TAPE FOR GRAPHITE SHEET

• Main Authors: DOI SATOSHI, ISHIKAWA YUKI, ISHIDO YASUSHI, FUKUOKA MASATERU, MASUDA SACHIHIRO, MAEKAWA HIROSUKE, TODA TOMOKI
• Format: Patent
• Language: English; Japanese
• Published: 06.07.2015
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED 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

PROBLEM TO BE SOLVED: To provide a double-sided adhesive tape for a graphite sheet suitably used for sticking the graphite sheet to an electronic part, which is hardly peeled off from the electronic part even if the double-sided adhesive tape is thin, and when being peeled together with the graphite sheet from the electronic part, which can be peeled off without causing crack or folding wrinkle from being generated on the graphite sheet.SOLUTION: Provided is a double-sided adhesive tape for a graphite sheet having adhesive layers on both sides of a base material. At least one of the adhesive layers on both surfaces, includes (meth) acrylic polymer obtained by living radical polymerization and having distribution of molecular weight (Mw/Mn) of 1.05-2.5. 【課題】グラファイトシートを電子部品に貼り付けるために好適に用いられる両面粘着テープであって、薄い両面粘着テープであっても電子部品から剥がれにくい一方で、グラファイトシートごと電子部品から剥離するときにはグラファイトシートにクラック又は折りシワを発生させることなく剥離することができるグラファイトシート用両面粘着テープを提供する。【解決手段】基材の両面に粘着剤層を有するグラファイトシート用両面粘着テープであって、前記両面の粘着剤層のうちの少なくとも一方の粘着剤層が、リビングラジカル重合により得られた分子量分布（Ｍｗ／Ｍｎ）１．０５〜２．５の（メタ）アクリルポリマーを含有するグラファイトシート用両面粘着テープ。【選択図】なし