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    POLYMER FILAMENTS HAVING PROFILED CROSS-SECTION
    31.
    发明申请
    POLYMER FILAMENTS HAVING PROFILED CROSS-SECTION 审中-公开
    具有分类交叉部分的聚合物薄膜

    公开(公告)号：WO2004074560A1

    公开(公告)日：2004-09-02

    申请号：PCT/US2004/004496

    申请日：2004-02-13

    Applicant: INVISTA TECHNOLOGIES S.à.r.l. ,  SHOEMAKER, Richard, T.

    Inventor： SHOEMAKER, Richard, T.

    IPC: D01D5/253

    CPC classification number: D06M15/647 ,  D01D5/253 ,  D01F6/60 ,  D06M15/507 ,  D06M15/59 ,  Y10T428/2913 ,  Y10T428/2929 ,  Y10T428/2973

    Abstract: The present invention is directed to a multi-filament yarn formed at least in part from filaments having cross-sectional zig-zag or double “W “shape with a 180 degree axis of symmetry. The filaments have a denier per filament generally in the range of about 0.1 to about 4.0. Fabrics made from yarns formed with the filaments have high moisture wicking, soft hand, and silk-like lustrous appearance.

    Abstract translation: 本发明涉及至少部分由具有180度对称轴的具有横截面锯齿形或双“W”形的长丝形成的复丝。 长丝的丝数通常在约0.1至约4.0的范围内。 由长丝形成的纱线制成的织物具有高吸湿性，柔软的手感和丝状光泽的外观。

    SPLICED YARN AND METHOD FOR FORMING THE SAME
    33.
    发明申请
    SPLICED YARN AND METHOD FOR FORMING THE SAME 审中-公开
    单丝和其形成方法

    公开(公告)号：WO2004058613A2

    公开(公告)日：2004-07-15

    申请号：PCT/US2003/040023

    申请日：2003-12-12

    Applicant: INVISTA TECHNOLOGIES S.à.r.l.

    Inventor： ZEWDE, Anteneh ,  PERROTTO, Joseph, Anthony ,  WHITLEY, Mark, Jefferson

    IPC: B65H

    CPC classification number: D02G3/445 ,  B65H69/00 ,  B65H69/063 ,  B65H2701/31 ,  D02G3/346

    Abstract: A method for producing a spliced yarn comprising alternating predetermined lengths of a first and a second yarn and to the yarn are disclosed.A predetermined length of a first yarn is drawn through an intermingling jet. A leading portion of a second yarn is forwarding into the intermingling jet and into overlapping relationship with a trailing portion of the first yarn. Using a pressurized fluid the overlapped portions of the first and second yarns are intermingled, thereby to splice the leading portion of second yarn to the trailing portion of the first yarn. The first yarn is then severed, and the spliced portion and a predetermined length of the second yarn are drawn through the intermingling jet. The cycle is repeated with the second yarn being the currently drawn yarn and the first yarn being forwarded into overlapping relationship therewith.Preferably the yarns are held in the intermingling jet, as by a clamp disposed forwardly of the jet, while the intermingled splice is formed. The pressurized fluid forming the intermingled splice has a pressure in the range from sixty (60) to one hundred (100) pounds per square inch (413.4 to 689.4 Kilopascals), and more preferably, a pressure in the range from sixty (60) to eighty (80) pounds per square inch (413.4 to 551.2 Kilopascals). Each splice so formed must be able to withstand a tension force of at least 6.8 pounds (3.1 kilograms). The predetermined lengths of the first and second yarn may be equal or different. Preferably the first and second yarns are solution dyed to be differently colored.

    Abstract translation: 公开了一种用于生产包括交替预定长度的第一和第二纱线和纱线的拼接纱线的方法。将预定长度的第一纱线通过混合射流抽出。 第二纱线的引导部分进入混合射流并与第一纱线的尾部重叠。 使用加压流体，将第一和第二纱线的重叠部分混合，从而将第二纱线的前部部分接合到第一纱线的后部。 然后将第一纱线切断，并且将接合部分和第二纱线的预定长度拉过混合射流。 重复该循环，其中第二根纱线是当前拉伸的纱线，第一根纱线与之重合。第一条纱线优选地保持在混合射流中，如通过设置在喷嘴前方的夹具，而形成混合的接头 。 形成混合接头的加压流体的压力范围为六十（60）至一百（100）磅/平方英寸（413.4至689.4千帕），更优选在六十（60）至 八十（80）磅每平方英寸（413.4至551.2千帕）。 如此形成的每个接头必须能够承受至少6.8磅（3.1千克）的张力。 第一纱线和第二纱线的预定长度可以相等或不同。 优选地，第一和第二纱线被染色成不同颜色。

    POWER RECOVERY FOR USE IN START-UP OR RE-START OF A PURE TEREPHTHALIC ACID PRODUCTION PROCESS
    34.
    发明申请
    POWER RECOVERY FOR USE IN START-UP OR RE-START OF A PURE TEREPHTHALIC ACID PRODUCTION PROCESS 审中-公开
    电源恢复用于启动或重新启动纯正庚酸生产过程

    公开(公告)号：WO2014189818A1

    公开(公告)日：2014-11-27

    申请号：PCT/US2014/038546

    申请日：2014-05-19

    Applicant: INVISTA TECHNOLOGIES S.À.R.L.

    Inventor： ROBINS, Clive, T. ,  CARRICK, Harald, B. ,  AIRD, Graham

    IPC: F01N3/08 ,  B01D53/86 ,  B01D53/75 ,  F02C6/18 ,  F01K25/14 ,  F23J15/02

    CPC classification number: F02C6/18 ,  F01K25/14 ,  F01N5/02 ,  F02C3/22 ,  F05D2220/62 ,  F22B1/1815

    Abstract: The invention relates to a method and system for recovering power from the gaseous stream produced by a paraxylene - air oxidation reaction. Specifically, the invention is based on heating the gaseous stream from the oxidation reaction to a temperature of at least 600°C, recovering energy through an expander, heating the expander vent stream and recovering heat from the vent stream. The recovered heat is used to maintain the oxidation process, purification process, start-up the process, or re¬ start the process after an interruption.

    Abstract translation: 本发明涉及一种从对二甲苯 - 空气氧化反应产生的气流中回收功率的方法和系统。 具体地，本发明基于将来自氧化反应的气流加热到至少600℃的温度，通过膨胀器回收能量，加热膨胀机排放流并从排气流中回收热量。 回收的热量用于维持氧化过程，净化过程，启动过程，或在中断后重新启动过程。

    VACUUM PRE-CASTING OF POLYAMIDE POLYMERS
    35.
    发明申请
    VACUUM PRE-CASTING OF POLYAMIDE POLYMERS 审中-公开
    聚氨酯聚合物的真空预成型

    公开(公告)号：WO2014179056A1

    公开(公告)日：2014-11-06

    申请号：PCT/US2014/034206

    申请日：2014-04-15

    Applicant: INVISTA TECHNOLOGIES S.à.r.l.

    Inventor： MONSTER, Leen ,  NOMIKOS, Paul

    IPC: B29B9/12 ,  C08G69/28

    CPC classification number: B29B9/12 ,  B29B7/38 ,  B29B7/72 ,  B29B7/7461 ,  B29B7/90 ,  B29B9/06 ,  B29B9/14 ,  B29K2077/00 ,  C08G69/28

    Abstract: The present disclosure provides methods and apparatuses providing uniform polyamide pellets. In one example, a method can include maintaining a vacuum during a pre-casting polymerization cycle of the cyclic process such that the pre-casting polymerization cycle produces a reactive polyamide polymer with decreased pre-casting polymerization cycle time, extruding the reactive polyamide polymer during a casting cycle by adjusting process parameters including vessel pressure and extrusion valve opening to generate a throughput of extruded polymer, and cutting the extruded polymer at a cutting speed substantially proportional to the throughput to provide polyamide pellets.

    Abstract translation: 本公开提供了提供均匀聚酰胺颗粒的方法和装置。 在一个实例中，一种方法可以包括在循环过程的预铸聚合循环期间维持真空，使得预铸聚合循环产生具有降低的预铸聚合循环时间的反应性聚酰胺聚合物，在反应性聚酰胺聚合物期间挤出反应性聚酰胺聚合物 通过调整包括容器压力和挤出阀打开的过程参数以产生挤出聚合物的通过量并以基本上与生产量成比例的切割速度切割挤出的聚合物以提供聚酰胺颗粒的铸造循环。

    REDUCTION OF ORGANONITRILE IMPURITY LEVELS IN HCN FROM AN OXYGEN ANDRUSSOW PROCESS
    36.
    发明申请
    REDUCTION OF ORGANONITRILE IMPURITY LEVELS IN HCN FROM AN OXYGEN ANDRUSSOW PROCESS 审中-公开
    从氧气和硫酸过程中减少HCN中的有机物污染物浓度

    公开(公告)号：WO2014099613A1

    公开(公告)日：2014-06-26

    申请号：PCT/US2013/074699

    申请日：2013-12-12

    Applicant: INVISTA TECHNOLOGIES S.À.R.L.

    Inventor： FORSYTH, Stewart ,  LIU, Aiguo ,  RENNER, Martin, J. ,  STAHLMAN, Brent, J.

    IPC: C01C3/02

    CPC classification number: C01C3/0212

    Abstract: The invention provides an oxygen Andrussow process for production of hydrogen cyanide from a methane-containing feedstock such as natural gas in the presence of oxygen and ammonia over a platinum catalyst, wherein the production of byproduct organonitrile impurities, such as acrylonitrile, is reduced. Limiting the content of C 2 + hydrocarbons in the methane feedstock in the oxygen Andrussow process, in contrast to the air Andrussow process, has been found to reduce formation of organonitriles, such as acrylonitrile. The organonitrile impurities can require additional processing for removal, cause fouling of equipment, and can also contribute to hydrogen cyanide polymerization. Reduction of C 2 + hydrocarbon levels to less than 2 wt%, or 1 wt%, or less than 0.1 wt%, in the methane can provide an improved yield of higher purity HCN. Reduction of C 2 + hydrocarbon levels also solves the problem of polymer buildup in process equipment, reducing downtime required for cleaning when higher C 2 + hydrocarbon levels are present in the reaction feed.

    Abstract translation: 本发明提供了一种用于在铂催化剂上在氧和氨存在下从含甲烷的原料例如天然气生产氰化氢的氧气Andrussow方法，其中副产物有机腈杂质如丙烯腈的生产被还原。 已经发现，与空气Andrussow方法相反，限制了氧气Andrussow方法中甲烷原料中的C2 +烃的含量，以减少有机腈如丙烯腈的形成。 有机腈杂质可能需要额外的除去处理，造成设备污染，也可能导致氰化氢聚合。 在甲烷中将C2 +烃水平降低至小于2重量％，或1重量％或小于0.1重量％可提供更高纯度HCN的提高的产率。 降低C2 +烃水平也解决了工艺设备中聚合物积聚的问题，当反应进料中存在较高的C2 +烃含量时，可减少清洗所需的停机时间。

    STITCHBONDED FABRIC
    40.
    发明申请
    STITCHBONDED FABRIC 审中-公开
    刺绣布

    公开(公告)号：WO2004076733A1

    公开(公告)日：2004-09-10

    申请号：PCT/US2004/005322

    申请日：2004-02-20

    Applicant: INVISTA TECHNOLOGIES S.à.r.l. ,  YANAGAWASE, Takeshi ,  ISSHIKI, Takasaburo

    Inventor： YANAGAWASE, Takeshi ,  ISSHIKI, Takasaburo

    IPC: D04B21/00

    CPC classification number: D04H1/45 ,  D04B21/165 ,  D04H1/52 ,  D04H3/115 ,  D04H3/16 ,  D06N3/0009 ,  Y10T428/24033 ,  Y10T442/637 ,  Y10T442/643

    Abstract: The invention provides a stitchbonded nonwoven fabric comprising a nonwoven web, stitches of a first yarn, and stitches of a second yarn wherein the first yarn comprises polyester bicomponent fibers exhibiting latent crimp and comprising poly(ethylene terephthalate) and poly(trimethylene terephthalate). The invention further provides a process for making such stitchbonded nonwoven fabric.

    Abstract translation: 本发明提供了一种缝合非织造织物，其包括非织造纤维网，第一纱线的线圈和第二纱线的线圈，其中第一纱线包含显示潜在卷曲且包含聚（对苯二甲酸乙二醇酯）和聚（对苯二甲酸丙二醇酯）的聚酯双组分纤维。 本发明还提供了制造这种缝合无纺织物的方法。

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