STRETCHED FILM, AND METHOD FOR MANUFACTURING STRETCHED FILM

To provide a stretched film excellent in heat resistance, dimensional stability and mechanical characteristics, and a method for manufacturing a stretched film.SOLUTION: A stretched film is formed of an acrylic resin composition containing (A) an acrylic resin having a glass transition temperature o...

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Bibliographische Detailangaben
Hauptverfasser:	HIRAI KEITA, TAMURA HIKARI, MASUDA NAGAHIRO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	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 DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING GENERAL PROCESSES OF COMPOUNDING METALLURGY NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	To provide a stretched film excellent in heat resistance, dimensional stability and mechanical characteristics, and a method for manufacturing a stretched film.SOLUTION: A stretched film is formed of an acrylic resin composition containing (A) an acrylic resin having a glass transition temperature of 110°C or higher and lower than 120°C, and (B) 1 wt.% to 50 wt.% of acrylic rubber particles, in which an absolute value of a dimension change ratio after elapse of 120 hours at 100°C is 0.7% or less, an absolute value of a dimension change ratio when being left at 85°C in 85% RH atmosphere for 120 hours is 0.5% or less, and MIT reciprocated bending number is 150 or more.SELECTED DRAWING: None 【課題】耐熱性、寸法安定性、機械的特性に優れた延伸フィルムおよび延伸フィルムの製造方法を提供する。【解決手段】（Ａ）ガラス転移温度が１１０℃以上１２０℃未満であるアクリル系樹脂および（Ｂ）アクリル系ゴム粒子を１重量％〜５０重量％含有するアクリル系樹脂組成物から成る延伸フィルムであって、１００℃環境下１２０時間経過後の寸法変化率の絶対値が０．７％以下であり、８５℃、８５％ＲＨ雰囲気下に１２０時間静置した際の寸法変化率の絶対値が０．５％以下であり、かつＭＩＴ往復折り曲げ回数が１５０回以上であることを特徴とする延伸フィルム。【選択図】なし