하드 코트 필름 및 그 제조 방법

• Main Authors: NAKAYAMA YUJI, EGUSA NAOKI
• Format: Patent
• Language: Korean
• Published: 09.04.2024
• Subjects: ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; GENERAL PROCESSES OF COMPOUNDING; INKS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PHYSICS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING-UP

트리아세틸셀룰로오스 필름(1), 혼합층(2), 및 하드코트층(3)을 갖는 하드코트 필름으로서, 하드코트층(3)은 3개 이상의 에틸렌성 불포화기를 갖는 화합물 (A), 1개의 에틸렌성 불포화기를 갖는 화합물(B), 광중합 개시제(C), 및 용제(D)를 포함하는 하드 코트층 형성용 조성물로 형성되고, 상기 하드 코트층 형성용 조성물 중의 화합물(B)/용제(D)의 질량비가, 0.03∼0.20이며, 혼합층(2)은, 트리아세틸셀룰로오스 필름(1)에, 상기 하드 코트층 형성용 조성물이 용해 또는 팽윤되어 형성된 층이며, 하드 코트 필름을 주사형 전자 현미경으로 두께 방향의 단면을 관찰했을 때, 하드 코트층(3)과 혼합층(2)의 합계 막 두께에 차지하는 혼합층(2)의 막 두께 비율이 65% 이상인 하드 코트 필름에 의해 해결된다. This hard coat film has a triacetylcellulose film (1), a mixed layer (2), and a hard coat layer (3). The hard coat layer (3) is formed of a hard coat layer-forming composition that contains a compound (A) having three or more ethylenically unsaturated groups, a compound (B) having one ethylenically unsaturated group, a photoinitiator (C), and a solvent (D). The mass ratio of compound (B)/solvent (D) in the hard coat layer-forming composition is 0.03-0.20. The mixed layer (2) is a layer formed by swelling or dissolving the hard coat layer-forming composition on the triacetylcellulose film (1). When a cross section of the hard coat film in the thickness direction is observed by a scanning electron microscope, the film-thickness proportion of the mixed layer (2) in the total film thickness of the hard coat layer (3) and the mixed layer (2) is 65% or more.