DOUBLE-SIDED ADHESIVE SHEET AND UTILIZATION THEREOF

• Main Authors: DING FRANK, HIGUCHI MASASATO, YOSHIDA SHO, ZHU HUAI RUI, TOZAKI YUTAKA, NIWA MICHIHITO, NISHIWAKI MASATAKA
• Format: Patent
• Language: English; Japanese
• Published: 03.08.2017
• 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

PROBLEM TO BE SOLVED: To provide a double-sided adhesive sheet having excellent detergent resistance.SOLUTION: An adhesive sheet includes an adhesive layer and has adhesiveness on both sides. The double-sided adhesive sheet has a pressing adhesive force of 30 N/cmor more after detergent immersion test of immersing 24 hours in an index detergent at 40°C, and an adhesive force maintenance factor of 50% or more, the factor expressed by a ratio of a pressing adhesive force P2 after the detergent immersion test with regard to a pressing adhesive force P1 before the detergent immersion test.SELECTED DRAWING: Figure 1 【課題】優れた耐洗剤性を有する両面粘着シートを提供すること。【解決手段】本発明に係る粘着シートは、粘着剤層を備える両面接着性の粘着シートである。この両面粘着シートは、４０℃の指標洗剤に２４時間浸漬する洗剤浸漬試験後の押圧接着力が３０Ｎ／ｃｍ２以上である。また、上記洗剤浸漬試験前の押圧接着力Ｐ１に対する前記洗剤浸漬試験後の押圧接着力Ｐ２の比で示される接着力維持率が５０％以上である。【選択図】図１