DAMPING ADHESIVE LAYERS FOR MICROSPEAKER DIAPHRAGMS

    公开(公告)号:US20210198543A1

    公开(公告)日:2021-07-01

    申请号:US16754827

    申请日:2018-06-06

    Abstract: Thin films are provided comprising a damping adhesive comprising a polysiloxane or mixture of polysiloxanes and exhibiting a tan delta of at least 0.42 for every temperature between 20° C. and 250° C. and a tan delta at 250° C. that is no more than 0.20 greater than the minimum tan delta measured in the range of 20° C. to 250° C.; in some cases exhibiting a tan delta of at least 0.42 for every temperature between 20° C. and 200° C. and a tan delta at 200° C. that is no more than 0.08 greater than the minimum tan delta measured in the range of 20° C. to 200° C.; in some cases obtained by crosslinking polysiloxane(s) by e-beam or peroxide. Microspeaker diaphragm materials, subassemblies and transfer tapes comprising such films are also provided.

    COATING COMPOSITIONS COMPRISING NON-IONIC SURFACTANT EXHIBITING REDUCED FINGERPRINT VISIBILITY
    2.
    发明申请
    COATING COMPOSITIONS COMPRISING NON-IONIC SURFACTANT EXHIBITING REDUCED FINGERPRINT VISIBILITY 有权
    包含非离子表面活性剂的涂料组合物展示降低指纹可视性

    公开(公告)号:US20140212651A1

    公开(公告)日:2014-07-31

    申请号:US14228656

    申请日:2014-03-28

    Abstract: Presently described are coating compositions comprising a polymerizable resin composition and a non-ionic unpolymerizable surfactant. In some embodiments, the coating comprises greater than 10 wt-% of non-ionic unpolymerizable surfactant. In other embodiments, the coating composition comprises an an additive comprising a silicone group or a fluorinated group and a hydrophobic group. Also described are articles comprising the cured coating compositions. In one embodiment, an article is described comprising a cured coating wherein the cured coating exhibits a property of an initially visible simulated fingerprint reducing in visibility in 1-20 minutes. Also described is a method of determining the fingerprint visibility of a coating composition and a polyacylate composition useful as an additive. In another embodiment a coated surface is described comprising a polymeric organic material comprising a plurality of pores wherein a portion of the pores are interconnected and comprise a lipophilic liquid.

    Abstract translation: 目前描述的是包含可聚合树脂组合物和非离子不可聚合表面活性剂的涂料组合物。 在一些实施方案中,涂层包含大于10重量%的非离子不可聚合表面活性剂。 在其它实施方案中,涂料组合物包含包含硅氧烷基团或氟化基团和疏水基团的添加剂。 还描述了包含固化的涂料组合物的制品。 在一个实施方案中,描述了包含固化涂层的制品,其中固化的涂层表现出在1-20分钟内可见度的最初可见的模拟指纹的性质降低。 还描述了确定涂料组合物和可用作添加剂的聚丙烯酸酯组合物的指纹可见性的方法。 在另一个实施方案中,描述了涂覆的表面,其包括包含多个孔的聚合有机材料,其中一部分孔相互连接并且包含亲油性液体。

    STAIN RESISTANT MICROSPHERE ARTICLES
    6.
    发明申请
    STAIN RESISTANT MICROSPHERE ARTICLES 审中-公开
    耐腐蚀微生物文章

    公开(公告)号:US20160145458A1

    公开(公告)日:2016-05-26

    申请号:US14900185

    申请日:2014-06-26

    Abstract: There is provided an article comprising at least a first surface having a fluorine-containing polymeric binder resin layer and a plurality of microspheres partially embedded in a first major surface of the binder resin layer and adhered thereto; wherein the fluorine-containing polymer is derived in part from at least one partially fluorinated, or non-fluorinated, monomer; and wherein the article exhibits a stain resistance to yellow mustard at elevated temperature and humidity as measured by the change in b* of less than 50. There are also provided such articles wherein the fluorine-containing polymer is derived in part from at least one partially fluorinated, or non-fluorinated, monomer; and wherein the fluorine content along the polymeric backbone of the fluorine-containing polymer is from about 27% to 72% by weight. There are also provided such articles wherein the article is a thermoformable article exhibiting chemical resistance according to ASTM D5402-06.

    Abstract translation: 提供一种制品,其至少包括具有含氟聚合物粘合剂树脂层的第一表面和部分地嵌入粘合剂树脂层的第一主表面并粘合到其上的多个微球; 其中所述含氟聚合物部分地衍生自至少一种部分氟化的或非氟化的单体; 并且其中所述制品在通过b *的变化小于50测量的高温和湿度下对黄芥子具有耐污染性。还提供了这样的制品,其中所述含氟聚合物部分地衍生自部分 氟化或非氟化的单体; 并且其中沿着含氟聚合物的聚合物主链的氟含量为约27%至72%重量。 还提供了这样的制品,其中制品是根据ASTM D5402-06具有耐化学性的热成型制品。

    DIAPHRAGM FOR MICROSPEAKER AND MANUFACTURING METHOD THEREOF

    公开(公告)号:US20230131805A1

    公开(公告)日:2023-04-27

    申请号:US17912014

    申请日:2021-03-03

    Abstract: The invention provides a diaphragm for a microspeaker and a manufacturing method thereof. The diaphragm is a single-layer diaphragm or a multi-layer diaphragm and comprises at least one layer of a chemically cross-linked thermoplastic polyester elastomer, wherein: the chemically cross-linked thermoplastic polyester elastomer has a loss factor less than or equal to 0.4 at a temperature range not higher than a softening temperature of thermoplastic polyester elastomer before chemical crosslinking plus 40° C., as measured by a rheological curve; and the diaphragm further has a yield strain in the range of 7% to 30%. The diaphragm for a microspeaker according to the technical solution of the present invention is easy to be prepared by thermoforming, and has appropriate modulus, good strength, elasticity, and thermal stability.

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