PERFLUORO RUBBER MOLDING

• Main Authors: MOURI JIYUNSAKU, YAMADA TORU, MORI YOSHIMARE
• Format: Patent
• Language: English; Japanese
• Published: 13.04.2017
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a perfluoro rubber molding in which a heat-resistant resin coating is formed on the surface of a molding of a perfluoro rubber composition excellent in heat resistance.SOLUTION: The perfluoro rubber molding includes: a molding of a perfluoro rubber containing repeating units derived from a fluoroolefin and a perfluoroalkyl vinyl ether; and a coating of an aromatic heat-resistant resin on at least a part of the surface of the molding which is in contact with a mating member. The perfluoro rubber has at least powder of the aromatic heat-resistant resin blended therein. In the aromatic heat-resistant resin, aromatic rings are linked by a bonding group containing at least one of a nitrogen atom, an oxygen atom, a sulfur atom, and a carbon atom.SELECTED DRAWING: None 【課題】耐熱性に優れたパーフルオロゴム組成物の成形体表面に耐熱性樹脂被膜が形成されたパーフルオロゴム成形体を提供する。【解決手段】フルオロオレフィンおよびパーフルオロアルキルビニルエーテルから誘導される繰り返し単位を含有するパーフルオロゴムの成形体と、この成形体の表面であって、少なくとも相手部材と接触する部位に芳香族耐熱性樹脂の被膜とを有し、パーフルオロゴムが少なくとも芳香族耐熱性樹脂の粉末が配合され、芳香族耐熱性樹脂は、芳香族環が窒素原子、酸素原子、硫黄原子および炭素原子の少なくとも１つを含む結合基により連結されている。【選択図】なし