PROCESS OF MELT-SPINNING POLYACRYLONITRILE FIBER

    公开(公告)号:US20150037509A1

    公开(公告)日:2015-02-05

    申请号:US14519057

    申请日:2014-10-20

    Abstract: Processes for producing carbon fibre, the filament thereof and pre-oxidized fibre are provided. In one embodiment, the gel spinning of polyacrylonitrile filament is achieved by using small-molecule gelling agent, and the carbon fibre obtained thereby is increased by 15% to 40% in tensile strength and by 20% to 35% in toughness. In another embodiment, the melt spinning process of polyacrylonitrile is conducted by using imidazole type ion liquid as plasticizer, the process reduces environment pollution, is suitable for industrial production and the fibre produced thereby is improved in its strength. In yet another embodiment, polyacrylonitrile pre-oxidized fibre is produced by melt spinning, so low cost and controllable pre-oxidization of polyacrylonitrile can be achieved. In a further embodiment, high strength carbon fibre is manufactured by using polymer thickening agent. In another further embodiment, low cost and controllable pre-oxidization of polyacrylonitrile is achieved by conducting pre-oxidization before spinning, minimizing skin-core structure, so as to produce high performance carbon fibre, and reduce the production cost of carbon fibre greatly.

    PROCESS OF MELT-SPINNING POLYACRYLONITRILE FIBER
    132.
    发明申请
    PROCESS OF MELT-SPINNING POLYACRYLONITRILE FIBER 有权
    熔融纺丝聚丙烯腈纤维的工艺

    公开(公告)号:US20150035197A1

    公开(公告)日:2015-02-05

    申请号:US14519002

    申请日:2014-10-20

    Abstract: Processes for producing carbon fibre, the filament thereof and pre-oxidized fibre are provided. In one embodiment, the gel spinning of polyacrylonitrile filament is achieved by using small-molecule gelling agent, and the carbon fibre obtained thereby is increased by 15% to 40% in tensile strength and by 20% to 35% in toughness. In another embodiment, the melt spinning process of polyacrylonitrile is conducted by using imidazole type ion liquid as plasticizer, the process reduces environment pollution, is suitable for industrial production and the fibre produced thereby is improved in its strength. In yet another embodiment, polyacrylonitrile pre-oxidized fibre is produced by melt spinning, so low cost and controllable pre-oxidization of polyacrylonitrile can be achieved. In a further embodiment, high strength carbon fibre is manufactured by using polymer thickening agent. In another further embodiment, low cost and controllable pre-oxidization of polyacrylonitrile is achieved by conducting pre-oxidization before spinning, minimizing skin-core structure, so as to produce high performance carbon fibre, and reduce the production cost of carbon fibre greatly.

    Abstract translation: 提供了生产碳纤维,其长丝和预氧化纤维的方法。 在一个实施方案中,通过使用小分子胶凝剂来实现聚丙烯腈长丝的凝胶纺丝,并且由此获得的碳纤维的拉伸强度增加15%至40%,韧性增加20%至35%。 在另一个实施方案中,聚丙烯腈的熔融纺丝过程是通过使用咪唑型离子液体作为增塑剂进行的,该方法减少了环境污染,适用于工业生产,其生产的纤维的强度提高。 在另一个实施方案中,通过熔融纺丝制备聚丙烯腈预氧化纤维,因此可以实现聚丙烯腈的低成本和可控的预氧化。 在另一个实施方案中,通过使用聚合物增稠剂制造高强度碳纤维。 在另一个实施方案中,聚丙烯腈的低成本和可控的预氧化通过在纺丝之前进行预氧化,使皮芯结构最小化,从而生产高性能碳纤维,并大大降低碳纤维的生产成本来实现。

    ELECTROSTATIC ABRASIVE PARTICLE COATING APPARATUS AND METHOD
    134.
    发明申请
    ELECTROSTATIC ABRASIVE PARTICLE COATING APPARATUS AND METHOD 审中-公开
    静电抛光颗粒涂料装置及方法

    公开(公告)号:US20140259961A1

    公开(公告)日:2014-09-18

    申请号:US14289011

    申请日:2014-05-28

    Abstract: A method of applying particles to a backing having a make layer on one of the backing's opposed major surfaces. The method including the steps of: supporting the particles on a feeding member having a feeding surface such that the particles settle into one or more layers on the feeding surface; the feeding surface and the backing being arranged in a non-parallel manner; and translating the particles from the feeding surface to the backing and attaching the particles to the make layer by an electrostatic force.

    Abstract translation: 将颗粒施加到在背衬的相对的主表面之一上具有成层的背衬的方法。 该方法包括以下步骤:将颗粒支撑在具有馈送表面的馈送构件上,使得颗粒沉积在馈送表面上的一个或多个层中; 馈送表面和背衬以不平行的方式布置; 并将颗粒从进料表面平移到背衬,并通过静电力将颗粒附着到制备层上。

    Method for electrostatic coating of a stent
    135.
    发明授权
    Method for electrostatic coating of a stent 有权
    支架静电涂敷方法

    公开(公告)号:US08821958B2

    公开(公告)日:2014-09-02

    申请号:US13600125

    申请日:2012-08-30

    Abstract: A method for electrostatic coating of medical devices such as stents and balloons is described. The method includes applying a composition to a polymeric component of a medical device which has little or no conductivity. The polymeric component could be a material from which the body or a strut of the stent is made or could be a polymeric coating pre-applied on the stent. The polymeric component could be the balloon wall. A charge can then be applied to the polymeric component or the polymeric component can be grounded. Charged particles of drugs, polymers, biobeneficial agents, or any combination of these can then be electrostatically deposited on the medical device or the coating on the medical device. One example of the composition is iodine, iodine, iodide, iodate, a complex or salt thereof which can also impart imaging capabilities to the medical device.

    Abstract translation: 描述了诸如支架和气囊的医疗装置的静电涂覆方法。 该方法包括将组合物施用于具有很少或不具有导电性的医疗器械的聚合物组分。 聚合物组分可以是制造支架的主体或支柱的材料,或者可以是预先施加在支架上的聚合物涂层。 聚合物组分可以是球囊壁。 然后可以向聚合物组分施加电荷,或者聚合物组分可以接地。 药物,聚合物,生物有益剂或它们的任何组合的带电颗粒然后可以静电沉积在医疗装置或医疗装置上的涂层上。 组合物的一个实例是碘,碘,碘化物,碘酸盐,其复合物或盐,其也可以赋予医疗装置成像能力。

    Coatings Having Enhanced Corrosion Performance and Method of Using the Same
    140.
    发明申请
    Coatings Having Enhanced Corrosion Performance and Method of Using the Same 审中-公开
    具有增强腐蚀性能的涂料及其使用方法

    公开(公告)号:US20130216720A1

    公开(公告)日:2013-08-22

    申请号:US13398242

    申请日:2012-02-16

    Abstract: A method of plating a part comprised of aluminum, alloys of aluminum, magnesium or alloys of magnesium to improve the corrosion resistance of the part. The method comprises the steps of plating the part with a plating bath comprising: (i) particles selected from the group consisting of polytetrafluoroethylene (PTFE), colloidal silica, colloidal graphite, ceramics, carbon nanotubes, silicon carbide, nano-diamond, diamond and combinations of one or more of the foregoing, which have been treated with a corrosion inhibitor and are dispersed in said plating bath; and (ii) metal ions to be plated. The dispersed particles co-deposit with the plated metal.

    Abstract translation: 电镀由铝,铝,镁或镁的合金组成的部件的方法,以提高部件的耐腐蚀性。 该方法包括以下步骤:用电镀液对电镀部分进行电镀,其包括:(i)选自聚四氟乙烯(PTFE),胶体二氧化硅,胶体石墨,陶瓷,碳纳米管,碳化硅,纳米金刚石,金刚石和 已经用腐蚀抑制剂处理并分散在所述电镀浴中的前述一种或多种的组合; 和(ii)待镀金属离子。 分散的颗粒与镀金属共沉积。

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