METHOD FOR PRODUCING ROLL-BODY OF SURFACE-PROTECTIVE FILM FOR TRANSPARENT CONDUCTIVE FILM

• Main Authors: HAYASHI MASUSHI, KYAKUNO MASATO, OKAMOTO RIE, SUZUKI CHIE
• Format: Patent
• Language: English; Korean
• Published: 12.07.2017
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; CONDUCTORS; DYES; ELECTRICITY; INSULATORS; 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; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; TRANSPORTING; USE OF MATERIALS AS ADHESIVES

본 발명은 점착제층이 표면의 평활성을 유지하고, 투명 도전성 필름에 첩합하여도 우수한 핸들링성을 가지며, 투명 도전성 필름의 제조·가공 공정에 있어서, 표면 보호 필름에 기인하는 외관의 결점 불량이 개선되고, 또한 터치 패널용 투명 전극 제조 공정에서의 생산성이 양호한, 투명 도전성 필름용 표면 보호 필름 및 그것을 사용한 투명 도전성 필름을 제공한다. 수지 필름의 일방의 면에 투명 도전막이 형성된 투명 도전성 필름의 타방의 면에 첩합하여 사용되는 투명 도전성 필름용 표면 보호 필름(5)으로서, 기재 필름(1)의 한쪽 면에 아크릴 수지 조성물과 가교제 및 가교 촉매를 포함하는 아크릴계 점착제를 사용하여 적층된 점착제층(2)은 30℃에서의 저장 탄성률이 4.0×10Pa 이상이고, 건조 개시 15분 후 및 40℃×5일간 에이징 후의 점착제층의 PET 필름에 대한 점착력(a) 및 (b)가 0.9≤ a/b ≤2.0의 관계를 만족한다. The invention provides a surface protective film for transparent conductive membrane and a transparent conductive membrane using the same. The surface of the surface protective film is covered by an adhesive layer, and thus the surface of the surface protective film is smooth. The processing ability of the surface protective film is excellent even if the surface protective film is pasted on a transparent conductive membrane. During the process of manufacturing and processing, the defects on the appearance of the surface protective film are improved, and the yield is good when the surface protective film is used to produce transparent electrodes for touch control panels. The surface protective film (5) for transparent conductive membrane is pasted on one surface of a resin membrane, and the other surface of the resin membrane is covered by a transparent conductive membrane. An adhesive layer (2), which comprises an acrylic resin composition, a crosslinking agent, and a crosslinking catalyst, is laminated on one surface of a substrate membrane (1), the energy storage capacity of the adhesive layer is 4.0*10 Pa or more below 30 DEG C; the adhesive forces of the adhesive layer on PET membrane under the conditions: 15 minutes after drying and aging for 5 days at a temperature of 40 DEG C are defined as a and b respectively, and the relationship of a and b is as follows: 0.9=<a/b=<2.0.