HYPERBRANCHED OLEFIN OIL-BASED DIELECTRIC FLUID
    16.
    发明申请
    HYPERBRANCHED OLEFIN OIL-BASED DIELECTRIC FLUID 有权
    超薄烯烃油基介质流体

    公开(公告)号:US20140330056A1

    公开(公告)日:2014-11-06

    申请号:US14362420

    申请日:2012-11-28

    Abstract: The present invention generally relates to a dielectric composition which is a poly-α-olefin or poly(co-ethylene-α-ol-efin) having a backbone weight average molecular weight less than 10,000 daltons. The dielectric composition uses a metal-ligand complex as a precatalyst and exhibits a hyperbranched structure that enables low viscosity, and therefore good flow characteristics, combined with high fire point due to ability to increase molecular weight via branching rather than backbone growth. Other desirable properties include lowered pour point due to crystallization disruption, and desirable thermal oxidative stability.

    Abstract translation: 本发明一般涉及具有骨架重均分子量小于10,000道尔顿的聚-α-烯烃或聚(共 - 乙烯-α-醇 - 烯烃)的电介质组合物。 电介质组合物使用金属 - 配体络合物作为预催化剂,并且表现出超支化结构,其能够通过分支而不是主链生长增加分子量的能力而实现低粘度,因此具有良好的流动特性以及高火点。 其它所需的性质包括由于结晶破坏引起的降低的倾点和所需的热氧化稳定性。

    SYNTHETIC ESTER-BASED DIELECTRIC FLUID COMPOSITIONS FOR ENHANCED THERMAL MANAGEMENT
    17.
    发明申请
    SYNTHETIC ESTER-BASED DIELECTRIC FLUID COMPOSITIONS FOR ENHANCED THERMAL MANAGEMENT 有权
    基于合成酯的介电流体组合物,用于增强热管理

    公开(公告)号:US20140252281A1

    公开(公告)日:2014-09-11

    申请号:US14348360

    申请日:2012-09-26

    CPC classification number: H01B3/24 H01B3/20

    Abstract: A dielectric fluid composition for electrical apparatus comprises a functionalized methyl-12-carboxy methyl stearate having desirable properties including a pour point less than −30° C. and a fire point greater than 250° C. It may be prepared by a process wherein methyl-12-hydroxy methyl stearate is transesterified by reaction with a C3-C20 alcohol to form the hydroxy methyl ester, followed by reaction with a linear or branched C4-C20 carboxylic acid selected from free acid chlorides, fatty acids, carboxylic acid anhydrides, and combinations thereof. The second step serves to end-cap the hydroxyl groups, thereby producing the functionalized methyl-12-carboxy methyl stearate compound that exhibits improved thermoxidative stability and low temperature flowability, as well as increased fire point.

    Abstract translation: 用于电气设备的介电流体组合物包括官能化的甲基-12-羧甲基硬脂酸酯,其具有包括倾点小于-30℃和高于250℃的点的所需性质。其可以通过以下方法制备:其中甲基 -12-羟基甲基硬脂酸酯通过与C 3 -C 20醇反应来酯交换以形成羟甲基酯,然后与选自游离酰氯,脂肪酸,羧酸酐的直链或支链C 4 -C 20羧酸反应,和 其组合。 第二步用于封端羟基,从而产生表现出改善的热氧稳定性和低温流动性以及增加的火点的官能化甲基-12-羧甲基硬脂酸酯化合物。

    Dielectric fluid compositions for enhanced thermal management
    19.
    发明授权
    Dielectric fluid compositions for enhanced thermal management 有权
    用于增强热管理的介电液组合物

    公开(公告)号:US09416089B2

    公开(公告)日:2016-08-16

    申请号:US14344937

    申请日:2012-09-26

    CPC classification number: H01B3/20 C07C51/367 C07C51/377 C07C59/01 H01B3/24

    Abstract: A dielectric fluid composition for electrical apparatus comprises a functionalized 12-hydroxy stearic acid having desirable properties including a pour point less than −30° C. and a fire point greater than 250° C. It may be prepared by a process wherein 12-hydroxy methyl stearate is transesterified by reaction with a C3-C20 alcohol to form an alkyl-12-hydroxy stearate, followed by esterification thereof with a linear or branched C4-C20 carboxylic acid. This acid may be a free acid chloride, a fatty acid, a carboxylic acid anhydride, or combination thereof. The resulting functionalized 12-hydroxy stearic acid exhibits improved thermoxidative capability, low temperature flowability, and increased fire point.

    Abstract translation: 用于电气设备的电介质流体组合物包括具有所需性质的功能化的12-羟基硬脂酸,其包括倾点小于-30℃和大于250℃的点。其可以通过以下方法制备:其中将12-羟基 甲基硬脂酸酯通过与C 3 -C 20醇反应以酯交换形成烷基-12-羟基硬脂酸酯,然后用直链或支链C 4 -C 20羧酸酯化。 该酸可以是游离酰氯,脂肪酸,羧酸酐或其组合。 得到的功能化的12-羟基硬脂酸表现出改善的热氧化能力,低温流动性和增加的火点。

Patent Agency Ranking