METHOD AND COMPOSITE FOR PREPARING HEAT EXCHANGERS FOR CORROSIVE ENVIRONMENTS
    24.
    发明申请
    METHOD AND COMPOSITE FOR PREPARING HEAT EXCHANGERS FOR CORROSIVE ENVIRONMENTS 审中-公开
    用于制备腐蚀性环境热交换器的方法和复合材料

    公开(公告)号:US20160046820A1

    公开(公告)日:2016-02-18

    申请号:US14415136

    申请日:2013-06-18

    Abstract: The present invention provides application of perfluoroalkoxy (PFA) onto metallic substrates to form a pinhole-free protective layer by means of electrostatic powder coating, by adding highly thermally conductive fillers such as graphite or ceramic powders/fibers/whiskers/flakes into virgin PFA powder to improve the thermal conductivity, as well as the application of the filled PFA powder onto various metallic substrates, including convoluted or finned tubes, outer or inner surfaces. Using a simple powder coating technique, a pinhole-free protective layer thinner than a PTFE covering film and with much higher thermal conductivity is produced on the metallic tubes and a physical bond is created at the interface between the PFA and the tube. These make the overall heat transfer coefficient much higher than a PTFE covered tube, which must have a thicker PTFE film to avoid pinhole and is lack of physical bond at the interface.

    Abstract translation: 本发明通过将高导热性填料如石墨或陶瓷粉末/纤维/晶须/薄片加入到原始的PFA粉末中,将全氟烷氧基(PFA)应用于金属基材上,通过静电粉末涂料形成无针孔保护层 以改善导热性,以及将填充的PFA粉末施加到各种金属基材上,包括卷曲或翅片管,外表面或内表面。 使用简单的粉末涂布技术,在金属管上产生比PTFE覆盖膜薄且具有更高导热性的无针孔保护层,并且在PFA和管之间的界面处产生物理结合。 这些使得整个传热系数比PTFE覆盖管高得多,它必须具有较厚的PTFE膜以避免针孔并且在界面处缺乏物理键。

    HEAT-CURABLE POWDER COATING COMPOSITION
    25.
    发明申请
    HEAT-CURABLE POWDER COATING COMPOSITION 审中-公开
    热固性粉末涂料组合物

    公开(公告)号:US20160009950A1

    公开(公告)日:2016-01-14

    申请号:US14863383

    申请日:2015-09-23

    CPC classification number: B05D1/06 C09D167/06

    Abstract: The invention relates to a heat curable powder coating composition suitable for being cured at a temperature from 60 to 130° C. comprising: a thermal initiation system and a resin system, wherein the reactivity of the thermal initiation system is such that the thermal initiation system provides a geltime between 2.5 and 1000 minutes at 60° C. in butane diol-dimethacrylate as measured according to DIN 16945 using 1 wt % of the thermal initiation system in 99 wt % of butane diol-dimethacrylate, wherein the amount of thermal initiation system is chosen such that when the powder coating composition is applied to a substrate and cured at a temperature of 130° C. for 20 minutes, the resulting coating resists at least 50 acetone double rubs, wherein the resin system comprises a resin and a co-crosslinker, wherein the resin contains reactive unsaturations and wherein said reactive unsaturations are carbon carbon double bonds connected directly to an electron withdrawing group, wherein the co-crosslinker is chosen from the group of acrylates, methacrylates, vinylesters, vinylethers, vinyl amides, alkyn ethers, alkyn esters, alkyn amides, alkyn amines, propargyl ethers, propargyl esters, itaconates, enamines and mixtures thereof, wherein the weight per unsaturation in the resin system is between 100 and 1000 g/mole as determined using 1H NMR and wherein the powder coating composition is a one component system.The powder coating compositions of the invention balance the ability to be cured at a low temperature with the ability to be easily processed in an extruder without the formation of gel.

    Abstract translation: 本发明涉及一种适用于在60至130℃温度下固化的可热固化粉末涂料组合物,包括:热引发体系和树脂体系,其中热引发体系的反应性使得热引发体系 在丁二醇 - 二甲基丙烯酸酯中,在丁二醇 - 二甲基丙烯酸酯中的凝胶时间在2.5至1000分钟之间,根据DIN 16945测量,使用在99重量%丁二醇 - 二甲基丙烯酸酯中的1重量%的热引发体系,其中热引发体系 选择使得当将粉末涂料组合物施加到基材上并在130℃的温度下固化20分钟时,所得到的涂层抗拒至少50次丙酮双摩擦,其中树脂体系包含树脂和共 - 交联剂,其中所述树脂含有反应性不饱和度,并且其中所述反应性不饱和度是直接连接到吸电子基团的碳碳双键,其中c O-交联剂选自丙烯酸酯,甲基丙烯酸酯,乙烯基酯,乙烯基醚,乙烯基酰胺,炔烃,炔烃,炔酰胺,炔烃胺,炔丙基醚,炔丙基酯,衣康酸酯,烯胺和其混合物,其中每个不饱和度的重量 在树脂体系中,使用1 H NMR确定为100-1000g / mol,其中粉末涂料组合物是单组分体系。 本发明的粉末涂料组合物在低温下平衡了能够在挤出机中容易加工而不形成凝胶的能力。

    Composition and Coating for Hydrophobic Performance
    26.
    发明申请
    Composition and Coating for Hydrophobic Performance 有权
    疏水性能的组成和涂层

    公开(公告)号:US20150368500A1

    公开(公告)日:2015-12-24

    申请号:US14837253

    申请日:2015-08-27

    Abstract: The present disclosure describes compositions comprising an acrylic polymer binder and nano-particles less than about 100 nm that provide a hydrophobic or superhydrophobic coating that may also display oleophobicity. The coating composition may advantageously be prepared using VOC exempt compounds that are compatible with a variety of surface materials including many electronic components. In addition, the coating composition may also be rapidly dried rendering it useful for the rapid preparation of coated objects and surfaces in manufacturing/assembly line environments.

    Abstract translation: 本公开描述了包含丙烯酸聚合物粘合剂和小于约100nm的纳米颗粒的组合物,其提供也可显示疏水性的疏水或超疏水涂层。 可以有利地使用与包括许多电子部件的各种表面材料相容的VOC豁免化合物来制备涂料组合物。 此外,涂料组合物也可以快速干燥,使其可用于在制造/装配线环境中快速制备涂覆物体和表面。

    PNEUMATIC TIRE AND METHOD OF PRODUCING THE SAME
    27.
    发明申请
    PNEUMATIC TIRE AND METHOD OF PRODUCING THE SAME 审中-公开
    气动轮胎及其生产方法

    公开(公告)号:US20150360518A1

    公开(公告)日:2015-12-17

    申请号:US14762552

    申请日:2014-02-04

    Abstract: Disclosed is a pneumatic tire that includes a tread having a pattern asymmetrical about the tire equatorial plane, and that may reduce cavity resonance and has good steering stability. A pneumatic tire includes a tread portion having a pair of tread halves, the tread halves extending between the tire equatorial plane and respective outer ends in the tire width direction of the tread portion, respectively, and having different negative ratios. The tread portion has short fibers fixed to at least a portion of a tire inner peripheral surface of the tread portion, and one of the tread halves with a higher negative ratio has a higher short-fiber fixation area ratio than that of the other tread half.

    Abstract translation: 公开了一种充气轮胎,其包括具有轮胎赤道平面不对称的图案的胎面,并且可以减小腔共振并且具有良好的操纵稳定性。 充气轮胎包括具有一对胎面半部的胎面部,胎面半部分别在轮胎赤道面与轮胎宽度方向的外侧端部之间分别延伸,并具有不同的负比率。 胎面部具有固定在胎面部的轮胎内周面的至少一部分上的短纤维,具有较高负比率的一个胎面半部具有比另一胎面半部更短的短纤维固定面积比 。

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