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    HIGH PRODUCTIVITY SPANDEX FIBER PROCESS AND PRODUCT
    183.
    发明申请
    HIGH PRODUCTIVITY SPANDEX FIBER PROCESS AND PRODUCT 审中-公开
    高生产率SPANDEX纤维工艺和产品

    公开(公告)号：WO2004099282A1

    公开(公告)日：2004-11-18

    申请号：PCT/US2004/006838

    申请日：2004-03-05

    Applicant: INVISTA TECHNOLOGIES S.A.R.L. ,  SELLING, Gordon, W. ,  HOUSER, Nathan, E.

    Inventor： SELLING, Gordon, W. ,  HOUSER, Nathan, E.

    IPC: C08G18/10

    CPC classification number: D01F6/70 ,  C08G18/10 ,  C08G18/4854 ,  C08G18/7657 ,  Y10S528/906 ,  C08G18/3228 ,  C08G18/2865

    Abstract: Commercially acceptable spandex can be prepared with greater efficiency, improved consistency and at lower costs from a high-solids content polyurethaneurea polymer solution. The polyurethaneurea is prepared using a combination of 4, 4'-MDI and 2,4'-MDI, and an amount of chain extenders and chain terminators such that the polymer solution, prior to spinning, is highly soluble and has an appropriate pre-spun IV and primary amine content.

    Abstract translation: 商业上可接受的氨纶可以以高固含量聚氨酯脲聚合物溶液的效率更高，稠度更高，成本更低。 使用4,4'-MDI和2,4'-MDI的组合以及一定量的增链剂和链终止剂制备聚氨酯脲，使得聚合物溶液在纺丝之前是高度可溶的并且具有适当的预处理 旋转IV和伯胺含量。

    PROCESS FOR CONTROLLING MOLECULAR WEIGHT OF POLYMER
    184.
    发明申请
    PROCESS FOR CONTROLLING MOLECULAR WEIGHT OF POLYMER 审中-公开
    控制聚合物分子量的方法

    公开(公告)号：WO2004096522A1

    公开(公告)日：2004-11-11

    申请号：PCT/US2003/031342

    申请日：2003-10-02

    Applicant: INVISTA TECHNOLOGIES S.A.R.L. ,  STEINER, James, L.

    Inventor： STEINER, James, L.

    IPC: B29C47/00

    CPC classification number: B29C47/0004 ,  B29C47/0014 ,  B29C47/92 ,  B29C49/06 ,  B29C2035/0822 ,  B29C2947/92695 ,  B29C2947/92828 ,  B29C2947/92866 ,  B29K2067/00 ,  B29K2105/258 ,  B29K2667/00 ,  B29L2031/7158 ,  C08G63/916 ,  D01F1/10 ,  D01F6/62

    Abstract: The present invention relates to a process for making a lower molecular weight polymer from a solid stated higher molecular weight feed stock chip. In particular, the molecular weight of an industrial resin or a bottle resin is reduced in a controlled manner by the introduction of ethylene glycol. If the industrial resin is to be employed for industrial fibers, the ethylene glycol may be added at the extruder for spinning the industrial fiber. On the other hand, should the high molecular weigh chip be used for bottle resin, the molecular weight may be reduced by the introduction of ethylene glycol at the extruder for injection molding of preforms of a lower molecular weight. The ethylene glycol/polymer ratio is determined by the reduction in molecular weight that is required. The preferred resin is polyester polymer or copolymer, and especially polyethylene terephthalate (PET). The present invention comprises a process for reducing the molecular weight of a solid stated polyester feed stock resin comprising obtaining polyester resin having an IV greater than about 0.8 dl/g; and mixing ethylene glycol with said polyester wherein said ethylene glycol is present in a stoichiometric amount to reduce the IV to the required level.

    Abstract translation: 本发明涉及从固体高分子量原料芯片制备低分子量聚合物的方法。 特别地，通过引入乙二醇可以控制工业树脂或瓶子树脂的分子量。 如果将工业树脂用于工业纤维，则可以在用于纺丝工业纤维的挤出机中加入乙二醇。 另一方面，如果高分子量芯片用于瓶子树脂，则通过在挤出机中引入乙二醇可以降低分子量，用于注射低分子量预成型体。 乙二醇/聚合物比由所需的分子量的降低来确定。 优选的树脂是聚酯聚合物或共聚物，特别是聚对苯二甲酸乙二醇酯（PET）。 本发明包括降低固体聚酯原料树脂的分子量的方法，包括获得IV大于约0.8dl / g的聚酯树脂; 并将乙二醇与所述聚酯混合，其中所述乙二醇以化学计量的量存在以将IV降低至所需水平。

    AN EFFECTIVELY PRINTABLE POLYAMIDE YARN, PROCESS FOR MAKING THE SAME, AND FABRIC PRODUCED THEREFROM
    185.
    发明申请
    AN EFFECTIVELY PRINTABLE POLYAMIDE YARN, PROCESS FOR MAKING THE SAME, AND FABRIC PRODUCED THEREFROM 审中-公开
    有效的可打印聚酰胺纱线，其制造方法和生产的织物

    公开(公告)号：WO2004072358A1

    公开(公告)日：2004-08-26

    申请号：PCT/US2004/003528

    申请日：2004-02-06

    Applicant: INVISTA TECHNOLOGIES S.A.R.L ,  LIN, Perry, Han-Cheng ,  CHAMPANERIA, Nitin, Jivanlal

    Inventor： LIN, Perry, Han-Cheng ,  CHAMPANERIA, Nitin, Jivanlal

    IPC: D06M13/213

    CPC classification number: C11D3/00 ,  D01F11/08 ,  D06M13/213 ,  D06P5/22

    Abstract: A method of manufacture of a rapid dyeing, deep dyeing, open structure polyamide yarn and to the yarn and to a fabric produced from the yarn includes the step of applying an aqueous finish to substantially all of the rapid dyeing, deep dyeing, open structure polyamide filaments. The aqueous finish consists essentially of a fluorosurfactant dissolved in water that is applied to bulked continuous filament yarn at an effective concentration level of preferably 150 to 600 parts per million by weight of flourine on yarn. The aqueous fluorosurfactant finish is applied at a point after texturizing and before windup.

    Abstract translation: 制造快速染色，深染色，开式结构聚酰胺纱线以及纱线和由纱线生产的织物的方法包括对基本上所有的快速染色，深染色，开式结构聚酰胺 细丝。 水性涂​​层基本上由溶解在水中的含氟表面活性剂组成，该氟表面活性剂以有效浓度水平施用于膨体连续长丝纱线，其有效浓度水平优选为在纱线上重量百万分之一百万重量百分数。 含水氟表面活性剂涂层在纹理化之后和卷绕之前施加。

    APPARATUS FOR FORMING A SPLICED YARN
    186.
    发明申请
    APPARATUS FOR FORMING A SPLICED YARN 审中-公开
    形成单纱的装置

    公开(公告)号：WO2004058612A2

    公开(公告)日：2004-07-15

    申请号：PCT/US2003/040019

    申请日：2003-12-12

    Applicant: INVISTA TECHNOLOGIES S.A.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: Apparatus for forming a spliced yarn includes a yarn conduction member with an intermingling jet disposed forwardly thereof. The yarn conduction member has respective yarn conduction channels through which the first and second yarns are conveyed to the intermingling jet. The axis of each yarn conduction channel from the inlet to the outlet of the member is a straight line, with no bends or deviations. The yarn conduction member has a knife blade disposed adjacent to a respective yarn conduction channel. Each knife blade has a passage defining a cutting edge and a solid portion disposed between the passage and the tip of the blade. The first and second knives are insertable into and retractable from the channel to which they are adjacent. In the inserted position the passage in the knife aligns with the channel into which it is inserted, while in the retracted position the solid portion of the blade interdicts the passage to prevent movement of a yarn therethrough. A first and a second holding cap is disposed adjacent to one of the yarn conduction channels and proximal to a respective one of the knives. Each cap is retractable from and insertable into the channel adjacent thereto in correspondence with the respective insertion and retraction of the proximal knife. When inserted into a channel the cap is disposed into abutting contact with the yarn conduction member and serves to hold a yarn extending through a channel against the yarn conduction member. The yarn conduction member is preferably formed from conjoined first and second housing members, one of which is fabricated from a transparent material.

    Abstract translation: 用于形成拼接纱线的装置包括：纱线传导部件，其前方配置有混合喷嘴。 纱线传导构件具有相应的纱线传导通道，第一和第二纱线通过该导纱通道被传送到混合射流。 每个纱线传导通道从构件的入口到出口的轴线是直线，没有弯曲或偏差。 纱线传导部件具有与相应的纱线传导通道相邻设置的刀片。 每个刀片具有限定切割边缘的通道和设置在叶片的通道和尖端之间的实心部分。 第一和第二刀可插入并从它们相邻的通道缩回。 在插入位置，刀具中的通道与其插入的通道对准，而在缩回位置，刀片的实心部分阻止通道，以防止纱线通过其移动。 第一和第二保持盖邻近一个纱线传导通道设置并且靠近相应的一个刀具。 每个盖可相应于近端刀的相应插入和缩回而从相邻的通道缩回并插入到其中。 当插入到通道中时，帽被布置成与纱线传导构件邻接接触，并且用于将通过通道延伸的纱线保持在纱线传导构件上。 纱线传导构件优选地由联结的第一和第二壳体构件形成，其中一个由透明材料制成。

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