公开(公告)号：US4290476A

公开(公告)日：1981-09-22

申请号：US112006

申请日：1980-01-14

申请人： Robert W. Smith ,  Naim S. Hemmat ,  John R. Bedell ,  Sheldon Kavesh ,  Seymour Draizen

发明人： Robert W. Smith ,  Naim S. Hemmat ,  John R. Bedell ,  Sheldon Kavesh ,  Seymour Draizen

IPC分类号： B22D11/00 ,  B22D11/06

CPC分类号： B22D11/005 ,  B22D11/0642

摘要： An apparatus is provided for planar flow casting of metal ribbon. The apparatus comprises a movable chill surface, a reservoir for holding molten metal and a slotted nozzle whose lips are located close to the chill surface. In operation, molten metal is forced through the nozzle onto the chill surface to form a melt puddle. Rapid cooling of the molten metal results in the formation of a continuous ribbon. The nozzles of this invention provide a planar bottom surface which includes the leading edge of the first lip and the side edges at the bottom of the lips and which is as close or closer to the chill surface than is any other point on the lips. The nozzle reduces air flow around the melt puddle and thereby improves ribbon uniformity.

摘要翻译： 提供了一种用于金属带的平面流铸的设备。 该装置包括可移动冷却表面，用于保持熔融金属的储存器和其嘴唇位于靠近冷却表面的开槽喷嘴。 在操作中，熔融金属被迫通过喷嘴到冷却表面上以形成熔融熔池。 熔融金属的快速冷却导致形成连续的带状物。 本发明的喷嘴提供了一个平面的底面，其包括第一唇缘的前缘和嘴唇底部的侧边缘，并且与嘴唇上的任何其它点相比更接近或更接近寒冷表面。 喷嘴减少了熔融水坑周围的气流，从而改善了带的均匀性。

公开(公告)号：US09211292B2

公开(公告)日：2015-12-15

申请号：US13385322

申请日：2012-02-14

申请人： William Wayne Howard ,  Sheldon Kavesh ,  Russell Francis Somma

发明人： William Wayne Howard ,  Sheldon Kavesh ,  Russell Francis Somma

IPC分类号： A61K31/485 ,  A61K31/37

CPC分类号： A61K31/485 ,  A61K31/37

摘要： A method and compositions for treating a patient that prevent or reduce drug abuse and overdose events.

摘要翻译： 用于治疗预防或减少药物滥用和过量事件的患者的方法和组合物。

公开(公告)号：US08506864B2

公开(公告)日：2013-08-13

申请号：US12925873

申请日：2010-11-01

申请人： Thomas Y. T. Tam ,  Qiang Zhou ,  John A. Young ,  Charles R. Arnett ,  John D. Brodie ,  Conor J. Twomey ,  Lori L. Wagner ,  Sheldon Kavesh

发明人： Thomas Y. T. Tam ,  Qiang Zhou ,  John A. Young ,  Charles R. Arnett ,  John D. Brodie ,  Conor J. Twomey ,  Lori L. Wagner ,  Sheldon Kavesh

IPC分类号： C08J3/00 ,  B29C47/00

CPC分类号： B29C47/0004 ,  B29C47/0014 ,  B29C47/0021 ,  B29C47/40 ,  B29C47/8895 ,  B29K2023/0683 ,  C08J3/091 ,  C08J2323/02 ,  D01D1/02 ,  D01F6/04 ,  Y10T428/2913

摘要： A robust process for the continuous preparation of solutions of high molecular weight UHMW PO that is capable of producing strong materials at high production capacity, is conservative of capital and energy requirements, and the articles made therefrom.

公开(公告)号：US07288220B2

公开(公告)日：2007-10-30

申请号：US11497758

申请日：2006-08-02

申请人： Sheldon Kavesh

发明人： Sheldon Kavesh

IPC分类号： D01D5/04

CPC分类号： D01F13/04 ,  D01F6/04 ,  Y02P70/629

摘要： A process for spinning high molecular weight poly (alph-olefin) filament, particularly ultrahigh molecular weight polyethylene filament, from solution in a volatile spinning solvent with recovery and recycling of the solvent.

摘要翻译： 从挥发性纺丝溶剂中的溶液中纺出高分子量聚（α-烯烃）长丝，特别是超高分子量聚乙烯长丝的方法，回收和再循环溶剂。

公开(公告)号：US20060145378A1

公开(公告)日：2006-07-06

申请号：US11028273

申请日：2005-01-03

申请人： Sheldon Kavesh

发明人： Sheldon Kavesh

IPC分类号： D01D5/04

CPC分类号： D01F13/04 ,  D01F6/04 ,  Y02P70/629

摘要： A process for spinning high molecular weight poly(alph-olefin) filament, particularly ultrahigh molecular weight polyethylene filament, from solution in a volatile spinning solvent with recovery and recycling of the solvent.

摘要翻译： 从挥发性纺丝溶剂中的溶液中纺出高分子量聚（α-烯烃）长丝，特别是超高分子量聚乙烯长丝的方法，回收和回收溶剂。

公开(公告)号：US06746975B2

公开(公告)日：2004-06-08

申请号：US10174353

申请日：2002-06-18

申请人： Sheldon Kavesh

发明人： Sheldon Kavesh

IPC分类号： B32B2712

CPC分类号： D01D4/02 ,  D01F6/04 ,  F41H5/0471 ,  Y10T428/2913 ,  Y10T442/2623 ,  Y10T442/3667 ,  Y10T442/622 ,  Y10T442/629

摘要： Polyethylene solutions are extruded through a multi-orifice spinneret into a cross-flow gas stream to form a fluid product. The fluid product is stretched at a temperature at which a gel will form at a stretch ratio of at least 5:1 over a length of less than about 25 mm with the cross-flow gas stream velocity at less than about 3 m/min. The fluid product is quenched in a quench bath consisting of an immiscible liquid to form a gel. The gel is stretched. The solvent is removed from the gel to form a xerogel and the xerogel product is stretched in at least two stages to produce a polyethylene yarn characterized by a tenacity of at least 35 g/d, a modulus of at least 1600 g/d and a work to break of at least 65 J/g. The yarn is further characterized by having greater than about 60% of a high strain orthorhombic crystalline component and, optionally, a monoclinic crystalline component greater than about 2% of the crystalline content. Composite panels made with these yarns exhibit excellent ballistic resistance, e.g., SEAC of 300 J-m2/Kg or higher against .38 caliber bullets using test procedure NILECJ-STD-0101.01. A ballistic resistant composite panel is provided comprising a polyethylene multi-filament yarn having a tenacity of at least about 35 g/d, a modulus of at least 1600 g/d, a work-to-break of at least about 65 J/g wherein the yarn has greater than about 60% of a high strain orthorhombic crystalline component and the yarn has a monoclinic crystalline component greater than about 2% of the crystalline content.

摘要翻译： 将聚乙烯溶液通过多孔喷丝板挤出成横流气流以形成流体产物。 流体产物在凝胶将以小于约25mm的长度以至少5:1的拉伸比形成的温度下被拉伸，其中横流气流速度小于约3m / min。 流体产物在由不混溶液体组成的骤冷浴中淬火以形成凝胶。 凝胶被拉伸。 从凝胶中除去溶剂以形成干凝胶，并将干凝胶产物在至少两个阶段中拉伸，以产生聚乙烯纱，其特征在于至少35g / d的强度，至少1600g / d的模量和 工作打破至少65 J / g。 该纱线的特征还在于具有大于约60％的高应变斜方晶结晶成分和任选的大于结晶含量的约2％的单斜晶体组分。 使用这些纱线制成的复合板材使用测试程序NILECJ-STD-0101.01显示出优异的防弹性，例如，对于.38口径子弹的SEAC为300Jm 2 / Kg或更高。提供了一种防弹复合板， 具有至少约35g / d的强度的长丝纱线，至少1600g / d的模量，至少约65J / g的断裂力，其中纱线具有大于约60％的高 应变斜方晶体组分，纱线具有大于结晶含量的约2％的单斜晶体组分。

公开(公告)号：US5601775A

公开(公告)日：1997-02-11

申请号：US410534

申请日：1995-03-24

申请人： David V. Cunningham ,  Sheldon Kavesh ,  Christopher P. Griffin ,  Allan R. Hall

发明人： David V. Cunningham ,  Sheldon Kavesh ,  Christopher P. Griffin ,  Allan R. Hall

IPC分类号： D02G3/44 ,  A01K91/00 ,  A61C15/04 ,  D01D11/06 ,  D01F8/06 ,  B29C47/02 ,  D02G3/36

CPC分类号： D01D11/06 ,  D01F8/06 ,  A61C15/041

摘要： A quasi monofilament having a high strength polyethylene fiber core with an adherent, abrasion resistant polymer sheath is prepared by feeding the core yarn through a crosshead die, while simultaneously supplying a polymer melt at a temperature greater than the melting point of the core yarn to the die, for sheathing the core yarn within the die with the melt under a sufficient pressure to cause the melt to adhere to the core yarn. The abrasion resistant polymer sheath includes an effective amount of a first polymer having ethylene crystallinity, a density of at least about 0.94 g/cm.sup.3, and a melt index of less than about 0.1 g/10 min. The composition used to sheathe the core yarn is characterized by a weight average tensile strength at yield of greater than about 13.8 MPa. The quasi monofilament has utility in applications subjected to high abrasion, such as sports fishing lines, kite lines, dental floss, "weedeater" lines and tennis racket strings.

摘要翻译： 通过将芯纱线通过十字头模头进给，同时在大于芯纱线的熔点的温度下向聚合物熔体提供聚合物熔体，制备具有粘附耐磨聚合物护套的高强度聚乙烯纤维芯的准单丝 模具，用于在足够的压力下用熔体将模具内的芯线包覆以使熔体粘附到芯纱上。 耐磨聚合物护套包括有效量的具有乙烯结晶度的第一聚合物，至少约0.94g / cm 3的密度和小于约0.1g / 10min的熔体指数。 用于包芯纱的组合物的特征在于产率大于约13.8MPa的重均拉伸强度。 准单丝可用于运动钓鱼线，风筝线，牙线，“除草机”线和网球拍线等高磨损应用。

公开(公告)号：US5248471A

公开(公告)日：1993-09-28

申请号：US723682

申请日：1991-06-24

申请人： Sheldon Kavesh

发明人： Sheldon Kavesh

IPC分类号： D01D4/02

CPC分类号： D01D4/02

摘要： This invention relates to a process in which a fiber is formed by spinning a melt or solution of a polymer through a capillary spinneret having a length/diameter (L/D) ratio equal to or greater than about 25:1, and fibers formed by such method

摘要翻译： 本发明涉及通过将长度/直径（L / D）比等于或大于25:1的毛细喷丝头纺丝聚合物的熔体或溶液而形成纤维的方法，以及由 这种方法

公开(公告)号：US4784820A

公开(公告)日：1988-11-15

申请号：US895396

申请日：1986-08-11

申请人： Sheldon Kavesh

发明人： Sheldon Kavesh

IPC分类号： C08J3/02 ,  B29B13/00 ,  B29C47/00 ,  D01D1/02 ,  D01F6/04 ,  D01F6/14 ,  D01F6/18 ,  B29C47/10 ,  B29C47/36

CPC分类号： B29C47/0004 ,  B29C47/38 ,  B29C47/0009 ,  B29K2995/0088

摘要： Solutions of high molecular weight polymers, such as ultrahigh molecular weight polyolefins are prepared, by forming a slurry of particles of the polymer in a solvent for the polymer, then transferring the slurry to a pumping device, then pumping the slurry under pressure to insure positive displacement to a screw extruder, and maintaining the slurry in the screw extruder for sufficient residence time at sufficient temperature so that a homogeneous solution is formed, then conveying the solution with the screw extruder to metering device which can feed a spinnerette, or a film-forming or tape-forming slit extruder.

摘要翻译： 通过在聚合物的溶剂中形成聚合物颗粒的浆料，然后将浆料转移到泵送装置，然后在压力下泵送浆料以确保阳性，制备高分子量聚合物，例如超高分子量聚烯烃的溶液 将其置于螺杆挤出机中，并将该浆料保持在螺杆挤出机中足以在足够的温度下保持足够的停留时间，从而形成均匀的溶液，然后用螺杆挤出机将溶液输送到计量装置中，该计量装置可以进料纺丝板， 成型或带状狭缝挤出机。

公开(公告)号：US4274473A

公开(公告)日：1981-06-23

申请号：US111748

申请日：1980-01-14

申请人： John R. Bedell ,  Sheldon Kavesh ,  Naim S. Hemmat ,  Seymour Draizen ,  Robert W. Smith

发明人： John R. Bedell ,  Sheldon Kavesh ,  Naim S. Hemmat ,  Seymour Draizen ,  Robert W. Smith

IPC分类号： B22D11/06

CPC分类号： B22D11/0642

摘要： An apparatus is provided for planar flow casting of metal ribbon. The apparatus comprises a movable chill surface, a reservoir for holding molten metal and a slotted nozzle whose lips are located close to the chill surface. In operation, molten metal is forced through the nozzle onto the chill surface to form a melt puddle. Rapid cooling of the molten metal results in the formation of a continuous ribbon. Ribbon contour is controlled through the use of nozzle designs that provide reproducible configuration of the melt puddle and reduce turbulent air flow over the molten metal surface.

摘要翻译： 提供了一种用于金属带的平面流铸的设备。 该装置包括可移动冷却表面，用于保持熔融金属的储存器和其嘴唇位于靠近冷却表面的开槽喷嘴。 在操作中，熔融金属被迫通过喷嘴到冷却表面上以形成熔融熔池。 熔融金属的快速冷却导致形成连续的带状物。 通过使用喷嘴设计来控制丝带轮廓，这些喷嘴设计提供熔融熔池的可重复配置并且减少熔融金属表面上的湍流空气流动。