2축 연신 필름

• Main Authors: KOIDO SHUNSUKE, NEMOTO TOMOYUKI
• Format: Patent
• Language: Korean
• Published: 11.11.2020
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

투명성, 내열성, 내습열성, 및, 연신 가공성이 우수한 2축 연신 필름을 제공하는 것. 디카르본산 성분(a-1)으로서 테레프탈산 단위, 디올 성분(a-2)으로서 1,4-시클로헥산디메탄올 단위를 포함하는 폴리시클로헥실렌디메틸렌테레프탈레이트(A) 100질량부에 대하여, 당해 폴리시클로헥실렌디메틸렌테레프탈레이트(A)보다도 글라스 전이 온도가 높은 폴리아릴레이트 수지(B)를 1질량부 이상 50질량부 이하 포함하는 수지 조성물로 이루어지는, 결정 융해 엔탈피가 20J/g 이상 80J/g 이하인 2축 연신 필름. The problem addressed by the present invention is to provide a biaxially oriented film having excellent transparency, heat resistance, moist heat resistance, and stretching processability. A biaxially oriented film having a crystal melting enthalpy of 20 to 80 J/g (inclusive), comprising a resin composition containing 1 to 50 mass parts (inclusive) of a polyarylate resin (B) having a glass transition temperature higher than the polycyclohexylenedimethylene terephthalate (A) per 100 mass parts of polycyclohexylenedimethylene terephthalate (A) containing a terephthalic acid unit as a dicarboxylic acid component (a-1) and a 1,4-cyclohexanedimethanol unit as a diol component (a-2).