Coal tar and hydrocarbon mixture pitch and the preparation and use thereof
    561.
    发明申请
    Coal tar and hydrocarbon mixture pitch and the preparation and use thereof 有权
    煤焦油和烃混合物沥青及其制备和应用

    公开(公告)号:US20040168612A1

    公开(公告)日:2004-09-02

    申请号:US10476017

    申请日:2004-03-25

    Inventor: William E Saver

    Abstract: A method of making a high softening point coal tar pitch using high efficiency evaporative distillation, as well as the uses and applications of such pitch. According to the method, a feed coal tar pitch having a softening point in the range of 70null C. to 160null C. is fed into a processing vessel wherein the processing vessel is heated to a temperature in the range of 300null C. to 450null C. and wherein a pressure inside the processing vessel is in the range of 5 Torr or less. An output coal tar pitch is withdrawn from the processing vessel. The output coal tar pitch has a softening point in the range of 140null C. to 300null C. and has less than 5% mesophase.

    Abstract translation: 使用高效蒸发蒸馏制备高软化点煤焦油沥青的方法,以及这种沥青的用途和应用。 根据该方法,将软化点在70℃至160℃范围内的进料煤焦油沥青进料到处理容器中,其中处理容器被加热到​​300℃的温度。 至450℃,并且其中处理容器内的压力在5托或更低的范围内。 输出的煤焦油沥青从处理容器中取出。 输出煤焦油沥青的软化点在140℃至300℃的范围内,并且具有小于5%的中间相。

    Process for making a thermoplastic molding composition
    562.
    发明授权
    Process for making a thermoplastic molding composition 有权
    制造热塑性模塑组合物的方法

    公开(公告)号:US06683123B1

    公开(公告)日:2004-01-27

    申请号:US09659281

    申请日:2000-09-12

    CPC classification number: C08J3/201 C08J3/005

    Abstract: A process for producing a thermoplastic molding composition is disclosed. The process entails introducing a solid polymeric resin, optionally containing residual moisture, into an extruder, operating under conditions designed to melt the resin and charging water into the melt while in the extruder to yield wet, molten resin that contains water in an amount of at least about 2 percent. The wet, molten resin is then devolatilized to yield dry resin having water content not exceeding 0.3 percent. Molding compositions thus produced have improved properties. In a preferred embodiment, the process results in a molding composition that contains a fine dispersion of a discontinuous phase in a continuous polymeric phase.

    Abstract translation: 公开了一种生产热塑性模塑组合物的方法。 该方法需要将固体聚合物树脂(任选地含有残余水分)引入挤出机中,在设计用于熔化树脂并在水中挤入熔融物中的水中进行操作的条件下进行操作,以产生湿的熔融树脂,其含有一定量的水 至少约2%。 然后将湿的熔融树脂脱挥发分,得到含水量不超过0.3%的干树脂。 由此生产的成型组合物具有改进的性能。 在一个优选的实施方案中,该方法得到在连续聚合物相中含有不连续相的细分散体的模塑组合物。

    Telecommunications cable composition process
    563.
    发明授权
    Telecommunications cable composition process 有权
    电信电缆组成过程

    公开(公告)号:US06565784B1

    公开(公告)日:2003-05-20

    申请号:US09585698

    申请日:2000-06-01

    Abstract: A process for the preparation of a composition useful in telecommunications jacketing comprising: (i) introducing a polyolefin into the first mixing zone of a melt/mixer having first and second mixing zones; (ii) introducing particulate carbon black per se or a premix of said carbon black and polyolefin into the first mixing zone, said carbon black being in an amount of about 2 to about 50 percent based on the weight of the polyolefin introduced into the first mixing zone; (iii) melting the polyolefin in the presence of the carbon black in the first mixing zone; (iv) mixing the carbon black and the molten polyolefin in the first mixing zone to provide a molten mixture; (v) passing the molten mixture from step (iv) into the second mixing zone; (vi) adding sufficient polyolefin to the molten mixture from step (v) to dilute the carbon black to a level of about 2 to about 3 percent by weight based on the weight of the total polyolefin in the melt/mixer; (vii) mixing the added polyolefin with the molten mixture in the second mixing zone to provide a molten mixture; (viii) about simultaneously with step (vii), venting the second mixing zone; (ix) recovering the mixture from step (vii); and (x) optionally, pelletizing the mixture from step (ix).

    Abstract translation: 一种制备用于电信护套的组合物的方法,包括:(i)将聚烯烃引入具有第一和第二混合区的熔体/混合器的第一混合区中;(ii)引入颗粒状炭黑本身或预混物 所述炭黑和聚烯烃进入第一混合区,所述炭黑的量为引入第一混合区的聚烯烃的重量的约2-约50%;(iii)在 (iv)将第一混合区中的炭黑和熔融聚烯烃混合以提供熔融混合物;(v)使来自步骤(iv)的熔融混合物进入第二混合区;(vi )将足够的聚烯烃添加到来自步骤(v)的熔融混合物中以将炭黑稀释至基于熔体/混合器中总聚烯烃重量的约2至约3重量%的水平;(vii)将所加入的 聚烯烃与 (vii)大约与步骤(vii)同时排出第二混合区;(ix)回收步骤(vii)中的混合物;(vii) 和(x)任选地,将步骤(ix)的混合物造粒。

    Dispersion process
    564.
    发明授权
    Dispersion process 有权
    分散过程

    公开(公告)号:US06512025B2

    公开(公告)日:2003-01-28

    申请号:US09777700

    申请日:2001-02-07

    CPC classification number: C09D5/03 C08J3/03 C08J3/201 C08J3/24 C09D5/02

    Abstract: A continuous process is disclosed for preparing a reactive particulate dispersion in a liquid carrier. The process comprises mixing together as a melt a resin and a crosslinker under extrusion condition at a temperature and for a time such that substantial crosslinker potential is retained between the resin and the crosslinker and thereafter dispersing the mixture whilst still molten into the liquid carrier and allowing the molten dispersed mixture to solidify to form particles.

    Abstract translation: 公开了在液体载体中制备反应性颗粒分散体的连续方法。 该方法包括在挤出条件下在一定温度和一段时间内将树脂和交联剂作为熔体一起混合在一起,使得在树脂和交联剂之间保留显着的交联剂电位,然后将混合物分散在仍然熔融到液体载体中并允许 熔融的分散混合物固化形成颗粒。

    Process for the preparation of a polyamide nanocomposite composition
    568.
    发明授权
    Process for the preparation of a polyamide nanocomposite composition 有权
    制备聚酰胺纳米复合材料组合物的方法

    公开(公告)号:US06350805B1

    公开(公告)日:2002-02-26

    申请号:US09592612

    申请日:2000-06-12

    Abstract: The invention relates to a process for the preparation of a polyamide nanocomposite composition by mixing in the melt phase a polyamide, a solid substance composed of anisotropic particles with a high aspect ratio and a liquid, the liquid being added to and subsequently mixed with a melt comprising at least the polyamide. Preferably water is chosen as the liquid. The invention also relates to a polyamide nanocomposite composition obtained by mixing in the melt phase a polyamide and a non-swollen solid substance composed of particles with a high aspect ratio. The polyamide nanocomposite compositions obtained with the process according to the invention and the polyamide nanocomposite compositions according to the invention can be used in all moulded parts which can be produced with a polyamide composition and which demand particularly good mechanical properties, for example for use in the motor compartment of a vehicle, for casings and for connectors.

    Abstract translation: 本发明涉及一种制备聚酰胺纳米复合材料组合物的方法,该组合物在熔融相中混合聚酰胺,由纵横比高的各向异性颗粒组成的固体物质和液体,将该液体加入并随后与熔体 至少包含聚酰胺。 优选选择水作为液体。本发明还涉及通过在熔融相中混合聚酰胺和由具有高纵横比的颗粒组成的非溶胀固体物质而获得的聚酰胺纳米复合材料组合物。通过该方法获得的聚酰胺纳米复合材料组合物 根据本发明,根据本发明的聚酰胺纳米复合材料组合物可以用于可以用聚酰胺组合物制造的所有模制部件中,并且需要特别好的机械性能,例如用于车辆的电动机室中的壳体 和连接器。

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