Adhesive tape

• Main Authors: YASUDA HINA, NAKAJIMA NAMI, ISHIDO YASUSHI, FUKUYAMA MAKOTO, HORIO AKIFUMI
• Format: Patent
• Language: Chinese; English
• Published: 09.05.2023
• 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 purpose of the present invention is to provide an adhesive tape which does not readily peel off when a load is applied at a high temperature and which has excellent heat retention. The present invention relates to an adhesive tape having a substrate and an adhesive layer laminated on at least one surface of the substrate, and having a relaxation time (TL25) of an L component measured by Harn echo at 25 DEG C using pulse NMR of 0.9 millisecond or less. Furthermore, the present invention relates to an adhesive tape having a base material and an adhesive layer laminated on at least one surface of the base material, the relaxation time (TL85) of the L component measured by the Harn echo method at 85 DEG C using pulse NMR being 3.3 milliseconds or less. 本发明的目的在于，提供在高温下施加负荷时不易剥离的耐热保持性优异的粘合带。本发明涉及一种粘合带，其具有：基材、和层叠于所述基材的至少一面的粘合剂层，使用脉冲NMR在25℃通过哈恩回波法进行测定而得到的L成分的弛豫时间(TL25)为0.9毫秒以下。另外，本发明涉及一种粘合带，其具有：基材、和层叠于所述基材的至少一面的粘合剂层，使用脉冲NMR在85℃通过哈恩回波法进行测定而得到的L成分的弛豫时间(TL85)为3.3毫秒以下。