LAMINATED BODY

• Main Author: YAGI KEISUKE
• Format: Patent
• Language: English; Japanese
• Published: 08.06.2022
• 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

To provide a laminated body having excellent alkali resistance and interlayer adhesiveness at high temperature.SOLUTION: A laminated body has a first layer including fluorine-containing elastic polymers, a second layer including non-fluorine elastic polymers, and optionally a thin film, where the fluorine-containing elastic polymer consists of a copolymer having a unit based on tetrafluoroethylene and a unit based on propylene or a copolymer having a unit based on tetrafluoroethylene and a unit based on perfluoro (alkylvinyl ether). In an image of a cross section perpendicular to a laminated surface of the laminated body, the height of irregularity of a line formed by the laminated surface of the laminated body is 3 μm to 40 μm, and when a type T peeling test defined by JIS K6854-3:1999 is performed at the temperature of 100 to 200°C, material fracture occurs in the first layer or the second layer.SELECTED DRAWING: None 【課題】耐アルカリ性および高温下における層間接着性に優れる積層体の提供。【解決手段】含フッ素弾性重合体を含む第１の層と非フッ素弾性重合体を含む第２の層と、任意に薄膜を有する積層体であって、前記含フッ素弾性重合体が、テトラフルオロエチレンに基づく単位とプロピレンに基づく単位とを有する共重合体またはテトラフルオロエチレンに基づく単位とパーフルオロ（アルキルビニルエーテル）に基づく単位とを有する共重合体からなる含フッ素弾性重合体であって、前記積層体の積層面に対して垂直な断面の画像において、積層体の積層面によって形成された線の凹凸の高さが３μｍ～４０μｍであり、ＪＩＳ Ｋ６８５４－３：１９９９に規定されるＴ型はく離試験を１００～２００℃の温度下で行ったときに、前記第１の層または前記第２の層で材料破断が生じる積層体。【選択図】なし