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    Organometallic containing mesophase pitches for spinning into pitch carbon fibers
    6.
    发明授权
    Organometallic containing mesophase pitches for spinning into pitch carbon fibers 失效

    公开(公告)号：US5720871A

    公开(公告)日：1998-02-24

    申请号：US109333

    申请日：1993-07-27

    Applicant: H. Ernest Romine ,  James R. McConaghy, Jr. ,  John A. Rodgers

    Inventor： H. Ernest Romine ,  James R. McConaghy, Jr. ,  John A. Rodgers

    IPC: C10C3/02 ,  C10C3/08 ,  C10C3/10 ,  D01F9/145 ,  C10C3/04

    CPC classification number: C10C3/026 ,  D01F9/145

    Abstract: An improved process is disclosed for producing a unique metals-containing anisotropic pitch suitable for carbon fiber manufacture. Soluble, aromatic-organometallic compounds are added to a carbonaceous feedstock which is substantially free of mesophase pitch and the resulting composition is heat soaked to produce an isotropic pitch product containing mesogens and soluble, aromatic-organometallic compounds. Next, the pitch product is solvent fractionated to separate mesogens which contain metals from the organometallic compounds. The metals-containing mesogens are heated to a temperature sufficient to cause fusion to produce a metals-containing mesophase pitch. In another method, the carbonaceous feedstock is heat soaked to produce an isotropic pitch product containing mesogens and high molecular weight, soluble, aromatic-organometallic compounds are added to the mesogen containing isotropic pitch product prior to solvent fractionation. Metals-containing carbon fibers produced from the mesophase pitch exhibit enhanced stabilization, tensile strength and modulus properties. Alternatively, the solvent fractionation or separation is conducted under supercritical extraction conditions to produce a metals-containing mesophase pitch. Organometallic compounds may be added to the carbonaceous feedstock either prior to or after the heat soak step.

    Carpet fiber polymeric blend
    7.
    发明授权
    Carpet fiber polymeric blend 有权

    公开(公告)号：US09809907B2

    公开(公告)日：2017-11-07

    申请号：US11619075

    申请日：2007-01-02

    Applicant: John A. Rodgers ,  James L. Williams ,  Dhanraj Jain

    Inventor： John A. Rodgers ,  James L. Williams ,  Dhanraj Jain

    IPC: B28B3/20 ,  C08L29/00 ,  D01F1/07 ,  D01F6/92

    CPC classification number: D01F1/07 ,  D01F6/92

    Abstract: The invention provides carpet fibers prepared from a blend of polymeric components, said fiber exhibiting improved properties, such as improved spinnability and improved fire resistance. The carpet fibers particularly comprise a majority of polytrimethylene terephthalate (PTT) and a minority of polyethylene terephthalate (PET). The invention further provides yarns and carpets prepared from the inventive fibers, said yarns and carpets likewise exhibiting improved properties. The invention also provides methods of improving various physical properties (such as fire resistance, spinnability, and elongation) of a polymeric composition.

    Entangled bicomponent yarn and process to make the same
    8.
    发明授权
    Entangled bicomponent yarn and process to make the same 有权
    缠结的双组份纱和加工方法相同

    公开(公告)号：US06868662B2

    公开(公告)日：2005-03-22

    申请号：US10294345

    申请日：2002-11-14

    Applicant: John A. Rodgers

    Inventor： John A. Rodgers

    IPC: D01F8/14 ,  D02G3/04 ,  D02G3/22 ,  D02J1/08 ,  D03D15/08 ,  D02G3/02 ,  D01G3/22

    CPC classification number: D03D15/08 ,  D01F8/14 ,  D02G3/045 ,  D02G3/22 ,  D02J1/08

    Abstract: The invention provides an entangled continuous filament yarn comprising at least two bicomponent filaments each comprising poly(trimethylene terephthalate) and poly(ethylene terephthalate), wherein the entangled yarn has a node frequency of about 40 to 50 nodes/m, a Crimp Potential of at least about 40%, substantially no twist, and a standard deviation of intervals between nodes of no more than about 1.1 cm. The invention further provides a process for making such an entangled yarn.

    Abstract translation: 本发明提供了一种缠结的连续长丝纱线，其包括至少两个双组分长丝，每个双组分长丝各自包含聚（对苯二甲酸丙二醇酯）和聚（对苯二甲酸乙二醇酯），其中缠结纱线具有约40至50个节点/ m的节点频率， 至少约40％，基本上没有扭曲，以及不超过约1.1cm的节点之间的间隔的标准偏差。 本发明还提供了一种制造这种缠结纱线的方法。

    Carpet Fiber Polymeric Blend
    10.
    发明申请
    Carpet Fiber Polymeric Blend 有权
    地毯纤维聚合物共混物

    公开(公告)号：US20080157425A1

    公开(公告)日：2008-07-03

    申请号：US11619075

    申请日：2007-01-02

    Applicant: John A. Rodgers ,  James L. Williams ,  Dhanraj Jain

    Inventor： John A. Rodgers ,  James L. Williams ,  Dhanraj Jain

    IPC: C08L29/00 ,  B28B3/20 ,  C08L45/00 ,  B29C47/00

    CPC classification number: D01F1/07 ,  D01F6/92

    Abstract: The invention provides carpet fibers prepared from a blend of polymeric components, said fiber exhibiting improved properties, such as improved spinnability and improved fire resistance. The carpet fibers particularly comprise a majority of polytrimethylene terephthalate (PTT) and a minority of polyethylene terephthalate (PET). The invention further provides yarns and carpets prepared from the inventive fibers, said yarns and carpets likewise exhibiting improved properties. The invention also provides methods of improving various physical properties (such as fire resistance, spinnability, and elongation) of a polymeric composition.

    Abstract translation: 本发明提供由聚合物组分的共混物制备的地毯纤维，所述纤维表现出改进的性能，例如改进的可纺性和改善的耐火性。 地毯纤维特别包括大多数聚对苯二甲酸丙二醇酯（PTT）和少数聚对苯二甲酸乙二醇酯（PET）。 本发明还提供由本发明的纤维制备的纱线和地毯，所述纱线和地毯同样表现出改进的性能。 本发明还提供改进聚合物组合物的各种物理性能（如耐火性，可纺性和伸长率）的方法。

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