公开(公告)号：US5286757A

公开(公告)日：1994-02-15

申请号：US66453

申请日：1993-05-24

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

发明人： Roy E. Smith ,  Warren H. Griffin ,  Deborah L. Koesis ,  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.

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。

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。

公开(公告)号：US20100292355A1

公开(公告)日：2010-11-18

申请号：US12596178

申请日：2008-04-18

申请人： Mark A. Barger ,  Charles A. Berglund ,  Clive P. Bosnyak ,  Stephanie A. Donati ,  John Gordon-Duffy ,  Warren H. Griffin ,  Ing-Feng Hu ,  Jean-Francois Koenig ,  Simon Lee ,  Creston D. Shmidt ,  Roy E. Smith ,  Chau V. Vo

发明人： Mark A. Barger ,  Charles A. Berglund ,  Clive P. Bosnyak ,  Stephanie A. Donati ,  John Gordon-Duffy ,  Warren H. Griffin ,  Ing-Feng Hu ,  Jean-Francois Koenig ,  Simon Lee ,  Creston D. Shmidt ,  Roy E. Smith ,  Chau V. Vo

IPC分类号： C08J9/04 ,  C08J9/00

CPC分类号： C08J9/146 ,  C08J9/149 ,  C08J2325/04

摘要： Prepare an alkenyl-aromatic foam having good surface quality, high thermal insulating properties and low density using an extrusion method by expanding a foamable polymer composition of an alkenyl-aromatic polymer composition containing less than 20 weight-percent covalently bonded halogens and having a polydispersity of less than 2.5 and a water solubility greater than 0.09 moles per kilogram and 2.2 moles per kilogram or less at 130 degrees Celsius and 101 kilopascals pressure and 0.8-2 moles per kilogram of a blowing agent containing 0.4 moles per kilogram or more of a chlorine-free fluorinated blowing agents and water at a concentration of at least 0.22 moles per kilogram; wherein moles per kilogram are relative to kilograms of alkenyl-aromatic polymer. The resulting foam has a density of 64 kilograms per cubic meter or less and a thermal conductivity of 32 milliwatts per meter-Kelvin or less after 180 days.

摘要翻译： 使用挤出方法制备具有良好表面质量，高绝热性和低密度的烯基 - 芳族泡沫体，其通过使包含少于20重量％共价键合的卤素的烯基 - 芳族聚合物组合物的可发泡聚合物组合物膨胀并具有多分散性 小于2.5，水溶解度大于0.09摩尔/千克，在130摄氏度和101千帕斯卡压力下为2.2摩尔/千克或更小，每千克含有0.4摩尔/千克或更多氯气的发泡剂为0.8-2摩尔， 游离氟化发泡剂和浓度至少为0.22摩尔/千克的水; 其中每千克的摩尔数相对于千克的烯基 - 芳族聚合物。 生成的泡沫体的密度为64千克/立方米或更小，并且180天后的热导率为32毫瓦/米 - 开尔文或更低。

公开(公告)号：US08785510B2

公开(公告)日：2014-07-22

申请号：US12531518

申请日：2008-03-13

申请人： Van-Chau Vo ,  Richard T. Fox ,  Warren H. Griffin ,  John Gordon-Duffy ,  Lawrence S. Hood ,  Roy E. Smith

发明人： Van-Chau Vo ,  Richard T. Fox ,  Warren H. Griffin ,  John Gordon-Duffy ,  Lawrence S. Hood ,  Roy E. Smith

IPC分类号： C08J9/00 ,  C08J9/12 ,  C08J9/14

CPC分类号： C08J9/127 ,  C08J9/144 ,  C08J9/146 ,  C08J9/149 ,  C08J2201/03 ,  C08J2203/06 ,  C08J2203/14 ,  C08J2203/142 ,  C08J2203/144 ,  C08J2325/06 ,  C08J2325/08 ,  C08J2325/12

摘要： Prepare a closed-cell alkenyl aromatic polymer foam by an extrusion process using a blowing agent composition that contains at least 30 weight-percent of the chlorine-free hydrofluorocarbon blowing agent such that the foam has a density of 48 kilograms per cubic meter or less, contains more than 50 weight-percent styrene-acrylonitrile copolymer based on total polymer weight and at least eight weight-percent of a chlorine-free hydrofluorocarbon blowing agent that has a lower solubility in polystyrene than 1,1,2,2-tetrafluoroethane (HFC-134).

摘要翻译： 通过使用包含至少30重量％的无氯氢氟烃发泡剂的发泡剂组合物的挤出方法制备闭孔烯基芳族聚合物泡沫体，使得泡沫体的密度为48千克/立方米或更小， 含有基于总聚合物重量的超过50重量％的苯乙烯 - 丙烯腈共聚物和至少8重量％的无氯氢氟烃发泡剂，其在聚苯乙烯中的溶解度低于1,1,2,2-四氟乙烷（HFC -134）。

公开(公告)号：US20100099783A1

公开(公告)日：2010-04-22

申请号：US12531518

申请日：2008-03-13

申请人： Van-Chau Vo ,  Richard T. Fox ,  Warren H. Griffin ,  John Gordon-Duffy ,  Lawrence S. Hood ,  Roy E. Smith

发明人： Van-Chau Vo ,  Richard T. Fox ,  Warren H. Griffin ,  John Gordon-Duffy ,  Lawrence S. Hood ,  Roy E. Smith

IPC分类号： C08J9/00

CPC分类号： C08J9/127 ,  C08J9/144 ,  C08J9/146 ,  C08J9/149 ,  C08J2201/03 ,  C08J2203/06 ,  C08J2203/14 ,  C08J2203/142 ,  C08J2203/144 ,  C08J2325/06 ,  C08J2325/08 ,  C08J2325/12

摘要： Prepare a closed-cell alkenyl aromatic polymer foam by an extrusion process using a blowing agent composition that contains at least 30 weight-percent of the chlorine-free hydrofluorocarbon blowing agent such that the foam has a density of 48 kilograms per cubic meter or less, contains more than 50 weight-percent styrene-acrylonitrile copolymer based on total polymer weight and at least eight weight-percent of a chlorine-free hydrofluorocarbon blowing agent that has a lower solubility in polystyrene than 1,1,2,2-tetrafluoroethane (HFC-134).

摘要翻译： 通过使用含有至少30重量％的无氯氢氟烃发泡剂的发泡剂组合物的挤出方法制备闭孔烯基芳族聚合物泡沫体，使得泡沫体的密度为48千克/立方米或更小， 含有基于总聚合物重量的超过50重量％的苯乙烯 - 丙烯腈共聚物和至少8重量％的无氯氢氟烃发泡剂，其在聚苯乙烯中的溶解度低于1,1,2,2-四氟乙烷（HFC -134）。

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.

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。

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。

公开(公告)号：US4926756A

公开(公告)日：1990-05-22

申请号：US407677

申请日：1989-08-31

申请人： Roy E. Smith ,  Peter E. Timan

发明人： Roy E. Smith ,  Peter E. Timan

IPC分类号： B61F5/44

CPC分类号： B61F5/44

摘要： This invention applies the linkage connected between the interaxle yokes of a truck and a railroad vehicle car body so as to create radially steered alignment of wheelsets on circular curves without reference to the truck frame. Forces exchanged between the wheelsets and the car body are essentially longitudinal and no significant lateral forces are created on the truck frame or car body from the steering action. The steering linkage utilizes the longitudinal component of relative motion of a point on the car body with reference to the vehicle truck to cause relative pivotal movement of the interaxle yokes thereby guiding the wheelsets to a radial alignment. Radial alignment is achieved by suitable proportioning of the links of the mechanism.

摘要翻译： 本发明应用连接在卡车的叉车轭铁和铁路车辆车体之间的联动装置，以便在不参考卡车框架的情况下，在圆形曲线上产生轮对的径向转向对准。 在轮对和车体之间交换的力基本上是纵向的，并且在转向动作上在卡车框架或车身上没有产生显着的横向力。 转向连杆机构使用相对于车辆卡车的车身上的点的相对运动的纵向分量，以引起桥梁轭的相对枢转运动，从而将轮对引导到径向对准。 通过机构的连杆的适当比例来实现径向对准。