Acid functional fluoropolymer membranes and method of manufacture
    185.
    发明授权
    Acid functional fluoropolymer membranes and method of manufacture 有权
    酸官能含氟聚合物膜及其制造方法

    公开(公告)号:US07160928B2

    公开(公告)日:2007-01-09

    申请号:US10984031

    申请日:2004-11-09

    Abstract: Methods are provided to make acid functional fluoropolymers by: a) dehydrofluorinating a starting fluoropolymer with a dehydrofluorinating agent to form an unsaturated fluoropolymer; b) adding an acidifiable nucleophilic functionalizing agent to a double bond of the unsaturated fluoropolymer; and c) acidifying the added acidifiable function. Acid functional fluoropolymers and ion conducting membranes thereof are also provided, including acid functional fluoropolymer having pendent groups according to the formula: —X—Ar—An, wherein X is selected from O, S or NR, where R is selected from H and C1–C30 alkyl or aryl, which are optionally substituted, wherein Ar is a C6–C30 aromatic group, which is optionally substituted, wherein A is an acidic function or salt thereof, wherein a can be independently chosen to be 1, 2 or 3.

    Abstract translation: 提供通过以下方式制备酸官能含氟聚合物的方法:a)用脱氟化氢剂使起始含氟聚合物脱氟化氢以形成不饱和含氟聚合物; b)将可酸化的亲核官能化剂加入到不饱和含氟聚合物的双键中; 和c)酸化所添加的酸化功能。 还提供了酸官能含氟聚合物及其离子传导膜,包括具有下式的侧基的酸官能含氟聚合物:-X-Ar-A N,其中X选自O,S或NR, 其中R选自H和任选取代的C 1 -C 30烷基或芳基,其中Ar是任选取代的C 6 -C 30芳族基团,其中A是酸性官能团或其盐,其中a可以独立地选自 为1,2或3。

    Nonelastomeric dental article with a protective fluoropolymer layer
    189.
    发明申请
    Nonelastomeric dental article with a protective fluoropolymer layer 审中-公开
    具有保护性氟聚合物层的非弹性牙科制品

    公开(公告)号:US20060105285A1

    公开(公告)日:2006-05-18

    申请号:US10991234

    申请日:2004-11-17

    CPC classification number: A61C7/00

    Abstract: Protective fluoropolymer layers for dental articles, particularly orthodontic appliances, are provided that reduce adhesion of materials such as food, bacteria, and proteinaceous substances to these surfaces, which can cause staining. Methods of reducing adhesion of these materials to such surfaces are also provided.

    Abstract translation: 提供用于牙科用品,特别是矫正器具的保护性含氟聚合物层,其可以降低诸如食物,细菌和蛋白质物质的材料对这些表面的粘附,这可能导致染色。 还提供了降低这些材料与这些表面的附着力的方法。

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