POLYPHENYLENE SULFIDE FILM

• Main Authors: YOSHIDA SHOHEI, SUEOKA MASANORI, WAKAHARA YOKO
• Format: Patent
• Language: English; Japanese
• Published: 30.05.2016
• Subjects: LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a polyphenylene sulfide film for a release film that is highly smooth and has excellent slipperiness (and windability), to achieve both a high-quality smooth surface and high heat resistance.SOLUTION: When one surface of a film is set as A face and the other surface is set as B face, A face and B face satisfy all of the following (1)-(3) surface physical properties. (1) A face has a surface roughness (SRaA) smaller than a surface roughness (SRaB) of B face, with SRaA of 20 nm or less. (2) A face has a kurtosis (SkuA) of 3 or more and 7 or less. (3) B face has a kurtosis (SkuB) of 6 or more and 25 or less.SELECTED DRAWING: None 【課題】高平滑ながらに滑り性（および巻取り性）に優れ、高品位な平滑表面と高耐熱性を両立した離型フィルム用のポリフェニレンスルフィドフィルムを提供すること。【解決手段】フィルムの一方の表面をＡ面、他方の表面をＢ面としたとき、Ａ面、Ｂ面が下記（１）〜（３）の表面物性をすべて満足することを特徴とする。（１）Ａ面の表面粗さ（ＳＲａＡ）がＢ面の表面粗さ（ＳＲａＢ）より小さく、ＳＲａＡが２０ｎｍ以下（２）Ａ面のクルトシス（ＳｋｕＡ）が３以上、７以下（３）Ｂ面のクルトシス（ＳｋｕＢ）が６以上、２５以下。【選択図】なし