Fluoropolymer nanoparticle coating composition
    8.
    发明授权
    Fluoropolymer nanoparticle coating composition 有权
    含氟聚合物纳米粒子涂料组合物

    公开(公告)号:US07638581B2

    公开(公告)日:2009-12-29

    申请号:US11305978

    申请日:2005-12-19

    IPC分类号: C08L27/12

    摘要: A fluoropolymer coating composition contains a homogeneous mixture of crystalline submicron fluoropolymer particles dispersed in a solvent-borne solution of less crystalline or amorphous fluororesin. The composition may be prepared by blending a latex containing crystalline submicron fluoropolymer particles with a latex containing less crystalline or amorphous fluororesin particles, coagulating and drying the blended latices, and dissolving the dried blend in a solvent for the fluororesin particles. Quasi-homogenous compositions may be prepared by blending dry crystalline submicron fluoropolymer particles with a) dry less crystalline or amorphous fluororesin particles and a solvent for the fluororesin particles, or b) a solvent-borne solution of less crystalline or amorphous fluororesin. Rubbing the disclosed coatings can provide a thin, continuous or nearly continuous fluoropolymer surface layer atop a less crystalline or amorphous fluororesin binder containing crystalline submicron fluoropolymer particles.

    摘要翻译: 氟聚合物涂料组合物含有分散在不太结晶或无定形氟树脂的溶剂型溶液中的结晶亚微米含氟聚合物颗粒的均匀混合物。 该组合物可以通过将含有结晶亚微米含氟聚合物颗粒的胶乳与含有较少结晶或无定形氟树脂颗粒的胶乳混合来制备,将混合的胶乳凝结并干燥,并将干燥的共混物溶解在氟树脂颗粒的溶剂中。 准均匀组合物可以通过将干结晶亚微米含氟聚合物颗粒与a)干结晶或无定形氟树脂颗粒和用于氟树脂颗粒的溶剂混合来制备,或b)不太结晶或无定形氟树脂的溶剂型溶液。 摩擦所公开的涂层可以在含有结晶亚微米含氟聚合物颗粒的较少结晶或无定形氟树脂粘合剂的顶部提供薄的,连续的或几乎连续的含氟聚合物表面层。