ADHESIVE FILM PRODUCTION METHOD, ADHESIVE FILM, AND CONNECTED BODY PRODUCTION METHOD

• Main Authors: TOKUHISA KENJI, SATO SHINICHI, TANAKA YUJI
• Format: Patent
• Language: English; Japanese
• Published: 19.11.2020
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CHEMISTRY; DYES; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; POLISHES; PRINTED CIRCUITS; USE OF MATERIALS AS ADHESIVES

To provide an adhesive film production method, an adhesive film and a connected body production method which realize high adhesive strength.SOLUTION: The adhesive film production method comprises: forming a first resin layer in which first rubber particles are dispersed in a binder which contains a film-forming resin, a radical-polymerizable compound and a photoinitiator; forming a second resin layer in which second rubber particles are dispersed in the binder; and bonding the first and second resin layers together.SELECTED DRAWING: Figure 1 【課題】高い接着強度が得られる接着フィルムの製造方法、接着フィルム、及び接続体の製造方法を提供することを目的とする。【解決手段】接着フィルムの製造方法は、膜形成樹脂と、ラジカル重合性化合物と、光重合開始剤とを含有するバインダー中に第１のゴム粒子が分散された第１の樹脂層を形成する工程と、バインダー中に第２のゴム粒子が分散された第２の樹脂層を形成する工程と、第１の樹脂層と第２の樹脂層とを貼り合わせる工程とを有する。【選択図】図１