Films and membranes for acoustic signal converter
    1.
    发明授权
    Films and membranes for acoustic signal converter 失效
    用于声信号转换器的膜和膜

    公开(公告)号:US08695752B2

    公开(公告)日:2014-04-15

    申请号:US13143982

    申请日:2010-01-28

    IPC分类号: G10K13/00 C08G63/00

    摘要: Deep-drawn membranes formed of polyester or polycarbonate films, comprising units of Formula (I) and (II), useful for acoustic signal converters as microphones and speakers. The film can be produced by thermoplastic processes or solvent cast processes. Especially suitable for the production of small membranes with a diameter of up to 10 cm useful in mobile devices as microphones, mobile telephones, laptops, personal digital assistants (PDAs), headphones or as signal transmitters

    摘要翻译: 由聚酯或聚碳酸酯膜形成的深拉膜包含式(I)和(II)单元,可用作声信号转换器作为麦克风和扬声器。 该膜可以通过热塑性工艺或溶剂浇铸工艺制造。 特别适用于生产直径达10厘米的小型薄膜,可用于移动设备,如麦克风,移动电话,笔记本电脑,个人数字助理(PDA),耳机或信号发射器

    USE OF AN ORGANOPOLYSILOXANE/POLYUREA BLOCK COPOLYMER AS A COATING ON PLASTIC SURFACES
    9.
    发明申请
    USE OF AN ORGANOPOLYSILOXANE/POLYUREA BLOCK COPOLYMER AS A COATING ON PLASTIC SURFACES 审中-公开
    作为涂料在塑料表面使用有机聚硅氧烷/聚氨酯嵌段共聚物

    公开(公告)号:US20110117290A1

    公开(公告)日:2011-05-19

    申请号:US12996877

    申请日:2009-07-24

    IPC分类号: B05D5/10 C09D183/10 H05H1/24

    CPC分类号: C09D183/10 C08G77/458

    摘要: Use of an organopolysiloxane/polyurea block copolymer according to formula (1), where R is a univalent hydrocarbon radical with 1 to 20 carbon atoms, optionally substituted by fluorine or chlorine, X is an alkylene radical with 1 to 20 carbon atoms in which methylene units that are not adjacent to one another can be replaced by —O— groups, or is an arylene radical en with 6 to 22 carbon atoms, A is an oxygen atom or an —NR′— amino group, R′ is water or an alkyl radical with 1 to 10 carbon atoms, Y is a bivalent hydrocarbon radical with 1 to 20 carbon atoms, optionally substituted by fluorine or chlorine, B and B′ are a reactive or non-reactive end group that is bonded covalently to the polymer, n is a number from 1 to 4000 and a is a number starting from at least 10, as a coating on a pre-treated plastic surface, the polar surface energy fraction thereof being at least twice that of the untreated plastic surface.

    摘要翻译: 使用根据式(1)的有机聚硅氧烷/聚脲嵌段共聚物,其中R是具有1至20个碳原子的一价烃基,任选被氟或氯取代,X是具有1至20个碳原子的亚烷基,其中亚甲基 彼此不相邻的单元可以被-O-基取代,或者是具有6-22个碳原子的亚芳基,A是氧原子或-NR'-氨基,R'是水或 具有1至10个碳原子的烷基,Y是任选被氟或氯取代的具有1至20个碳原子的二价烃基,B和B'是与聚合物共价键合的反应性或非反应性端基, n是1至4000的数,a是从至少10开始的数字,作为预处理塑料表面上的涂层,极性表面能分数至少是未处理的塑料表面的两倍。