Method for atomized electron beam polymerization of polymerizable
materials
    2.
    发明授权
    Method for atomized electron beam polymerization of polymerizable materials 失效
    聚合材料雾化电子束聚合方法

    公开(公告)号:US4172776A

    公开(公告)日:1979-10-30

    申请号:US938891

    申请日:1978-09-01

    CPC classification number: C08F2/46 Y10T428/2982

    Abstract: A method for producing polymers in powdered form is disclosed, including the formation of a finely divided solvent-free spray of a liquid monomer of the polymer which is to be produced, or of a reactive unsaturated polymer, and the passage of that spray through a high energy electron beam in an inert atmosphere in order to polymerize the monomer or reactive unsaturated polymer of the spray while in the spray form and produce a powdered polymer product. The preferred method develops a charge in the particles of the finely divided spray and passes the charged spray through a charged yoke to ensure particle separation and compress the pattern of the spray prior to passage through the electron beam, which is preferably in the form of a curtain. In a preferred embodiment, a polymerized powdered paint is produced by this method, and the liquid monomer and/or reactive unsaturated polymer may be compounded with color, initiators, pigments or other materials prior to polymerization of a finely divided spray of that liquid. Furthermore, the polymerized powdered products produced by this method are also disclosed.

    Abstract translation: 公开了一种制备粉末状聚合物的方法,包括形成待生产的聚合物液体单体或反应性不饱和聚合物的细分散的无溶剂喷雾,以及该喷雾通过 在惰性气氛中的高能电子束,以便以喷雾形式聚合喷雾的单体或反应性不饱和聚合物并产生粉末聚合物产物。 优选的方法是在细分散喷雾的颗粒中产生电荷,并将带电喷雾通过带电磁轭,以确保颗粒分离并在通过电子束之前压缩喷雾图案,其优选地为 窗帘。 在优选的实施方案中,通过该方法制备聚合的粉末涂料,并且液体单体和/或反应性不饱和聚合物可以在颜色,引发剂,颜料或其它材料之前与该液体的细分散喷雾聚合。 此外,还公开了通过该方法生产的聚合粉末产品。

    Sealant for porous fuel cell component frames using polymerization of
monomers
    4.
    发明授权
    Sealant for porous fuel cell component frames using polymerization of monomers 失效
    密封剂用于使用单体聚合的多孔燃料电池组件框架

    公开(公告)号:US5219674A

    公开(公告)日:1993-06-15

    申请号:US813465

    申请日:1991-12-26

    CPC classification number: H01M8/0273 C08J9/405 Y10T29/4911

    Abstract: A porous plate used in a fuel cell is sealed with an essentially 100% active material and catalyst mixture. The mixture is absorbed into and fills essentially the entire void volume provided by the pores. The mixture is then thermally shocked to partially cure the mixture thereby preventing wicking. The partially cured mixture is then post cured by elevating the temperature such that the catalyst initiates free radical polymerization. Since the sealant is essentially 100% active, there are no escape paths formed during the curing process, and the final seal is essentially 100% leak proof.

    Abstract translation: 用于燃料电池的多孔板用基本上100%的活性材料和催化剂混合物密封。 将混合物吸收并基本上填充由孔提供的整个空隙体积。 然后将混合物热冲击以部分固化混合物,从而防止芯吸。 然后通过升高温度使部分固化的混合物固化,使得催化剂开始自由基聚合。 由于密封剂基本上是100%活性的,所以在固化过程中没有形成逸出路径,并且最终的密封基本上是100%的防漏。

    Method of applying a continuous thermoplastic coating with one coating
step
    5.
    发明授权
    Method of applying a continuous thermoplastic coating with one coating step 失效
    用一个涂覆步骤涂覆连续热塑性涂层的方法

    公开(公告)号:US5021259A

    公开(公告)日:1991-06-04

    申请号:US443856

    申请日:1989-11-29

    Abstract: A continuous, pinhole-free thermoplastic polymer coating, which may be a fluoroelastomer, is applied to a porous metal surface in a single coating step by spraying the thermoplastic polymer from a thermal spray gun onto a porous metal surface which is at substantially room temperature to form a semi-fused, highly porous coating. The porous metal surface is then heated to fuse the thermoplastic polymer coating into a well-anchored, continuous film. This method permits the application of a continuous thermoplastic polymer coating with one coating step rather than with the plurality of coating steps currently needed to produce a coating with comparable properties.

    Abstract translation: 将可以是含氟弹性体的连续的无针孔热塑性聚合物涂层在单个涂覆步骤中通过将热塑性聚合物从热喷枪喷射到多孔金属表面上而被施加到多孔金属表面上,所述多孔金属表面基本上在室温至 形成半熔融,高度多孔的涂层。 然后加热多孔金属表面以将热塑性聚合物涂层熔合成良好锚定的连续膜。 该方法允许使用一个涂覆步骤而不是当前需要的多个涂布步骤来施加连续的热塑性聚合物涂层以产生具有可比性质的涂层。

    Expanded high-temperature stable chemical resistant seal material
    6.
    发明授权
    Expanded high-temperature stable chemical resistant seal material 失效
    膨胀高温稳定耐化学性密封材料

    公开(公告)号:US4774154A

    公开(公告)日:1988-09-27

    申请号:US909658

    申请日:1986-09-22

    CPC classification number: H01M2/08 H01M8/0271 H01M8/2485 F28F2230/00

    Abstract: A seal material having improved sealing characteristics and useful in high temperature, corrosive environments, particularly fuel cells is disclosed. The material comprises an acid resistant, high temperature stable fluorinated elastomer and a blowing agent which activate at a temperature within the range of curing temperatures of the elastomer. Improved sealing characteristics due to volume expansion of the seal material applied and activated within the fuel cell were observed. The process of activating the seal material at the operating temperature of the fuel cell is also disclosed.The invention also discloses the process of using the seal material within a fuel cell.

    Abstract translation: 公开了具有改进的密封特性并且在高温,腐蚀性环境,特别是燃料电池中有用的密封材料。 该材料包括耐酸,高温稳定的氟化弹性体和在弹性体固化温度范围内的温度下活化的发泡剂。 观察到由于在燃料电池内施加和激活的密封材料的体积膨胀而改善的密封特性。 还公开了在燃料电池的工作温度下激活密封材料的过程。 本发明还公开了在燃料电池内使用密封材料的方法。

    Powdered polymer compositions produced by electron beam polymerization
of polymerizable compositions
    7.
    发明授权
    Powdered polymer compositions produced by electron beam polymerization of polymerizable compositions 失效
    通过可聚合组合物的电子束聚合制备的粉末聚合物组合物

    公开(公告)号:US4273831A

    公开(公告)日:1981-06-16

    申请号:US58926

    申请日:1979-07-23

    CPC classification number: C08F2/46 Y10T428/2982

    Abstract: Apparatus for producing polymers in powdered form is disclosed, including means for forming a finely divided solvent-free spray of a liquid monomer of the polymer which is to be produced, or of a reactive unsaturated polymer. The spray passes through a high energy electron beam in an inert atmosphere in order to polymerize the monomer or reactive unsaturated polymer of the spray while in the spray form and produce a powdered polymer product. The preferred apparatus develops a charge on the particles of the finely divided spray and passes the charged spray through a similarly charged yoke to ensure particle separation and to compress the pattern of the spray prior to passage through the electron beam, which is preferably in the form of a curtain. In a preferred embodiment, a polymerized powdered paint is produced by this apparatus, and the liquid monomer and/or reactive unsaturated polymer may be compounded with color, initiators, pigments or other materials prior to polymerization of a finely divided spray of that liquid.

    Abstract translation: 公开了用于生产粉末状聚合物的装置,包括用于形成待生产的聚合物的液体单体或反应性不饱和聚合物的细分散的无溶剂喷雾的装置。 喷雾在惰性气氛中通过高能电子束,以便以喷雾形式聚合喷雾的单体或反应性不饱和聚合物并产生粉状聚合物产物。 优选的装置在细分散喷雾的颗粒上产生电荷,并将带电喷雾通过类似带电的磁轭,以确保颗粒分离并在通过电子束之前压缩喷雾图案,该电子束优选地为 的窗帘。 在优选的实施方案中,通过该装置制备聚合的粉末涂料,并且在该液体的细分散喷雾聚合之前,液体单体和/或反应性不饱和聚合物可以与着色剂,引发剂,颜料或其它物质混合。

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