利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

36 条记录 (耗时 0.056 秒)

    Foamable composition and process for making large cell size alkenyl aromatic polymer foam structure with 1,1-difluoroethane
    5.
    发明授权
    Foamable composition and process for making large cell size alkenyl aromatic polymer foam structure with 1,1-difluoroethane 失效
    可泡沫组合物和制备具有1,1-二氟乙烷的大单元尺寸链烯基芳族聚合物泡沫结构的方法

    公开(公告)号：US5276063A

    公开(公告)日：1994-01-04

    申请号：US73854

    申请日：1993-06-08

    申请人： Roy E. Smith ,  Warren H. Griffin ,  Deborah L. Kocsis ,  Dennis R. Lantz

    发明人： Roy E. Smith ,  Warren H. Griffin ,  Deborah L. Kocsis ,  Dennis R. Lantz

    IPC分类号： C08J9/14

    CPC分类号： B29C44/352 ,  C08J9/149 ,  C08J2325/00 ,  Y10S521/91

    摘要： Disclosed is a process for making extruded, closed-cell alkenyl aromatic polymer foam structure having an average cell size of from about 0.3 to about 3.0 millimeters. The process comprises: a) heating an alkenyl aromatic polymer material having greater than 50 percent by weight alkenyl aromatic monomeric units to form a melt polymer material; b) incorporating into the melt polymer material at an elevated pressure a blowing agent comprising at least 50 percent by weight 1,1-difluoroethane (HFC-152a) based upon the total weight of the blowing agent to form a foamable gel; c) cooling the foamable gel to an optimum foaming temperature prior to extrusion through a die; and d) extruding the foamable gel through a die to form the foam structure. Further disclosed is a foamable gel capable of forming an alkenyl aromatic polymer foam structure having an average cell size of from about 0.3 to about 3.0 millimeters.

    摘要翻译： 公开了一种制备平均泡孔尺寸为约0.3至约3.0毫米的挤出的闭孔烯基芳族聚合物泡沫结构的方法。 该方法包括：a）加热具有大于50重量％链烯基芳族单体单元的烯基芳族聚合物材料以形成熔融聚合物材料; b）在升高的压力下将基于发泡剂总重量的至少50重量％的1,1-二氟乙烷（HFC-152a）的发泡剂并入熔融聚合物材料中以形成可发泡凝胶; c）在通过模具挤出之前将可发泡凝胶冷却至最佳发泡温度; 和d）通过模头挤出可发泡凝胶以形成泡沫结构。 还公开了能够形成平均泡孔尺寸为约0.3至约3.0毫米的烯基芳族聚合物泡沫结构的可发泡凝胶。

    Foamable composition and process for making large cell size alkenyl aromatic polymer foam structure with 1,1-difluoroethane
    6.
    发明授权
    Foamable composition and process for making large cell size alkenyl aromatic polymer foam structure with 1,1-difluoroethane 失效
    可泡沫组合物和制备具有1,1-二氟乙烷的大单元尺寸链烯基芳族聚合物泡沫结构的方法

    公开(公告)号：US5244928A

    公开(公告)日：1993-09-14

    申请号：US927110

    申请日：1992-08-07

    申请人： Roy E. Smith ,  Warren H. Griffin ,  Deborah L. Kocsis ,  Dennis R. Lantz

    发明人： Roy E. Smith ,  Warren H. Griffin ,  Deborah L. Kocsis ,  Dennis R. Lantz

    IPC分类号： C08J9/14

    CPC分类号： B29C44/352 ,  C08J9/149 ,  C08J2325/00 ,  Y10S521/91

    摘要： Disclosed is a process for making extruded, closed-cell alkenyl aromatic polymer foam structure having an average cell size of from about 0.3 to about 3.0 millimeters. The process comprises: a) heating an alkenyl aromatic polymer material having greater than 50 percent by weight alkenyl aromatic monomeric units to form a melt polymer material: b) incorporating into the melt polymer material at an elevated pressure a blowing agent comprising at least 50 percent by weight 1,1-difluoroethane (HFC-152a) based upon the total weight of the blowing agent to form a foamable gel: c) cooling the foamable gel to an optimum foaming temperature prior to extrusion through a die: and d) extruding the foamable gel through a die to form the foam structure. Further disclosed is a foamable gel capable of forming an alkenyl aromatic polymer foam structure having an average cell size of from about 0.3 to about 3.0 millimeters.

    摘要翻译： 公开了一种制备平均泡孔尺寸为约0.3至约3.0毫米的挤出的闭孔烯基芳族聚合物泡沫结构的方法。 该方法包括：a）加热具有大于50重量％链烯基芳族单体单元的烯基芳族聚合物材料以形成熔体聚合物材料：b）在升高的压力下将熔融聚合物材料引入包含至少50％ （HFC-152a），基于发泡剂的总重量以形成可发泡凝胶：c）在通过模具挤出之前，将可发泡凝胶冷却至最佳发泡温度;和d）挤出 可发泡凝胶通过模头形成泡沫结构。 还公开了能够形成平均泡孔尺寸为约0.3至约3.0毫米的烯基芳族聚合物泡沫结构的可发泡凝胶。

    MACHINABLE THERMALLY INSULATING POLYMERIC FOAM
    7.
    发明申请
    MACHINABLE THERMALLY INSULATING POLYMERIC FOAM 审中-公开
    可机械绝热绝热泡沫

    公开(公告)号：US20130018117A1

    公开(公告)日：2013-01-17

    申请号：US13513599

    申请日：2010-12-02

    申请人： Richard T. Fox ,  David J. Frankowski ,  Roy E. Smith ,  Simon Lee

    发明人： Richard T. Fox ,  David J. Frankowski ,  Roy E. Smith ,  Simon Lee

    IPC分类号： C08J9/14 ,  B29C47/00

    CPC分类号： C08J9/146 ,  C08J9/149 ,  C08J2201/03 ,  C08J2203/14 ,  C08J2203/142 ,  C08J2325/12

    摘要： Provide a foamable polymer composition containing: (i) a thermoplastic polymer matrix and a blowing agent, (a) the thermoplastic polymer matrix containing a styrene-acrylonitrile copolymer having a weight-averaged molecular weight in a range of 90,000 to 150,000 and polymerized acrylonitrile concentration in a range of five to twenty weight-percent relative to total polymer matrix weight; and (ii) a blowing agent containing water, 1,1,1,2-tetrafluouroethane and at least one of difluoromethane and 1,1-dilluoroethane; (b) cooling the foamable polymer composition to a foaming temperature; and (c) extruding the foamable polymer composition and allowing the blowing agent to expand the foamable polymer composition into a polymeric foam having an average vertical cell size in a range of 0.5 millimeters to 1.8 millimeters and a density in a range of 24 to 40 kilograms per cubic meter and a Normalized Roughness Quotient of 3.5 or less in a Milled Surface Test.

    摘要翻译： 提供一种可发泡聚合物组合物，其包含：（i）热塑性聚合物基质和发泡剂，（a）含有重均分子量在90,000至150,000范围内的苯乙烯 - 丙烯腈共聚物的热塑性聚合物基质和聚合丙烯腈浓度 相对于总聚合物基体重量为5至20重量％的范围; 和（ii）含有水，1,1,1,2-四氟乙烷和二氟甲烷和1,1-二氟乙烷中的至少一种的发泡剂; （b）将可发泡聚合物组合物冷却至发泡温度; 和（c）挤出可发泡聚合物组合物并允许发泡剂将可发泡聚合物组合物膨胀成具有0.5毫米至1.8毫米范围内的平均垂直孔尺寸和24至40千克范围内的密度的聚合物泡沫体 每立方米，在铣削表面试验中的归一化粗糙度为3.5以下。

    Flexible shaft coupling having flexible elements interspersed between alternating attachment wedges
    8.
    发明授权
    Flexible shaft coupling having flexible elements interspersed between alternating attachment wedges 失效
    柔性联轴器，其具有穿插在交替附接楔之间的柔性元件

    公开(公告)号：US4943261A

    公开(公告)日：1990-07-24

    申请号：US350805

    申请日：1989-05-12

    申请人： Roy E. Smith

    发明人： Roy E. Smith

    IPC分类号： F16D3/64 ,  F16D3/68

    CPC分类号： F16D3/68

    摘要： A flexible drive coupling for transmitting rotational forces between respective flanges of a driving shaft and a driven shaft. The flexible drive coupling has, in a substantially planar circular configuration, a number of wedges. The wedges have respective end faces facing the adjacent wedges and connected thereto by flexible elements. Alternate wedges attach respectively to the flanges of the driving and driven shafts. The flexible elements consist of a link between two end plates. The mating faces of the link and the end plates are curved so that they co-operate one with the other. An elastomeric filler occupies the space between the curved surfaces of the end plates and the links permitting each end plate to pivot with respect to the link by deforming the elastomeric filler. The end faces of the wedges and, the corresponding faces of the end plates of the flexible elements which face them, have co-operating tabs and recesses to prevent relative radial and axial movement. On attaching the flexible drive coupling to the driving and driven shafts, the wedges can be forced radially inward and so secured that the flexible elements are pre-loaded in radial compression.

    Steered axle for a railway vehicle
    9.
    发明授权
    Steered axle for a railway vehicle 失效
    铁路车辆转向轴

    公开(公告)号：US4802419A

    公开(公告)日：1989-02-07

    申请号：US917115

    申请日：1986-10-08

    申请人： Roy E. Smith

    发明人： Roy E. Smith

    IPC分类号： B61F5/38 ,  B61F5/44

    CPC分类号： B61F5/44 ,  B61F5/38

    摘要： An axle for a rail vehicle is pivotally connected to two equal length swinging arms, each of which is pivotally connected to the rail vehicle. The axle rotates about a virtual vertical axis away from the axle and nearer to the center of the rail vehicle. The axle is then radial for all curves over which a rail vehicle would usually traverse. In addition, the overhang of the rail vehicle while traversing a curve is reduced since the rail vehicle chords between virtual axes.

    摘要翻译： 轨道车辆的轴枢转地连接到两个等长的摆动臂，每个摆动臂枢转地连接到轨道车辆。 轴绕虚拟垂直轴线旋转远离轴并且更靠近轨道车辆的中心。 然后，轨道对于轨道车辆通常穿过的所有曲线是径向的。 此外，由于轨道车辆在虚拟轴线之间弯曲，所以轨道车辆横过弯道时的突出部分减小。

    Self-supporting yarn package
    10.
    发明授权
    Self-supporting yarn package 失效
    自支撑纱线包装

    公开(公告)号：US5806775A

    公开(公告)日：1998-09-15

    申请号：US683016

    申请日：1996-07-16

    申请人： Roy E. Smith ,  Larry J. Huey ,  Thomas A. Coakley

    发明人： Roy E. Smith ,  Larry J. Huey ,  Thomas A. Coakley

    IPC分类号： B65H54/28 ,  B65H55/00 ,  B65H54/00 ,  B65H55/04 ,  B65H71/00

    CPC分类号： B65H54/2812 ,  B65H54/36 ,  B65H54/52 ,  B65H55/04 ,  B65H2701/1742 ,  B65H2701/3122 ,  Y10S242/92

    摘要： A self supporting, helically wound package of yarn suitable for being payed out by withdrawing the yarn without collapse of the package is disclosed. The yarn comprises a strand of individual filaments, the strand having a primary cross-sectional shape and periodic flat spots with a flat cross-sectional shape which is more elongated than the primary cross-sectional shape. The package has edge portions positioned axially at the ends of the package, and the flat spots are positioned in the edge portions of the package.

    摘要翻译： 公开了一种自支撑，螺旋缠绕的纱线包装，适用于通过抽出纱线而不会使包装件塌陷而被支付。 该纱线包括一股单根细丝，该股线具有初级横截面形状和具有平坦横截面形状的周期性平坦点，其比主要横截面形状更细长。 包装件具有轴向地定位在包装的端部处的边缘部分，并且平面点位于包装的边缘部分中。