PRESSURE-SENSITIVE ADHESIVE AND METHOD FOR USING THE SAME, AND PRESSURE-SENSITIVE ADHESIVE MATERIAL AND METHOD FOR USING THE SAME

• Main Authors: MASUDA KATSUYUKI, YAMAMOTO KAZUNORI, SHINADA EIITSU
• Format: Patent
• Language: English; Japanese
• Published: 12.11.2015
• 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

PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive having excellent heat resistance and releasability even when exposed to a high temperature environment.SOLUTION: The pressure-sensitive adhesive comprises a condensation resin having a polyoxyalkanediyl group or a 1,4-piperazinediyl group, and a compound containing boron. The condensation resin comprises a structural unit obtained by condensation-polymerizing a polymerizable monomer comprising: at least one monomer (A) selected from a carboxylic acid having at least two carboxyl groups, an anhydride of the carboxylic acid, an ester of the carboxylic acid, and a halide of the carboxylic acid; and a monomer (B) having at least two amino groups. The monomer (B) comprises a monomer (b1) having a polyoxyalkanediyl group and at least two amino groups, and a monomer (b2) having a 1,4-piperazinediyl group and at least two amino groups. 【課題】高温環境に曝された場合でも優れた耐熱性及び剥離性を有する粘着剤の提供。【解決手段】ポリオキシアルカンジイル基又は１，４−ピペラジンジイル基を有する縮合系樹脂と、ホウ素を含有する化合物と、を含む、粘着剤。前記縮合系樹脂が、カルボキシル基を少なくとも２つ有するカルボン酸、前記カルボン酸の無水物、前記カルボン酸のエステル化物及び前記カルボン酸のハロゲン化物から選ばれる少なくとも一種のモノマー（Ａ）と、アミノ基を少なくとも２つ有するモノマー（Ｂ）とを含む重合性モノマーを縮合重合して得られる構造単位を有し、前記モノマー（Ｂ）が、ポリオキシアルカンジイル基及び少なくとも２つのアミノ基を有するモノマー（ｂ１）と、１，４−ピペラジンジイル基及び少なくとも２つのアミノ基を有するモノマー（ｂ２）と、を含む粘着剤。【選択図】なし