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1.发明申请Elastic Nonwoven Materials Comprising Propylene-Based and Ethylene-Based Polymers 审中-公开弹性非织造材料，包括丙烯基和乙烯基聚合物公开(公告)号：US20120329351A1
公开(公告)日：2012-12-27
申请号：US13486643
申请日：2012-06-01
CPC分类号： D04H1/00 , C08F210/06 , C08F210/16 , D01F6/30 , D01F6/46 , D04H3/00 , Y10T442/601 , C08F2500/11 , C08F2500/12 , C08F2500/15 , C08F2500/18 , C08F2500/20 , C08F2500/23
摘要： The present invention relates to elastic nonwoven materials comprising an elastic layer formed from a polymer blend comprising a propylene-based polymer and a minor amount of an ethylene-based polymer. The propylene-based polymer may comprise from about 75 to about 95 wt % propylene and from about 5 to about 25 wt % ethylene and/or a C4-C12 α-olefin, and may have a triad tacticity greater than about 90% and a heat of fusion less than about 75 J/g. The ethylene-based polymer may comprise from about 65 to about 100 wt % ethylene and from 0 to about 35 wt % of one or more C3-C12 α-olefins.
摘要翻译： 本发明涉及弹性非织造材料，其包括由包含丙烯类聚合物和少量基于乙烯的聚合物的聚合物共混物形成的弹性层。 基于丙烯的聚合物可以包含约75至约95重量％的丙烯和约5至约25重量％的乙烯和/或C 4 -C 12α-烯烃，并且可以具有大于约90％的三单元组立构规律度和 熔化热小于约75J / g。 基于乙烯的聚合物可以包含约65至约100重量％的乙烯和0至约35重量％的一种或多种C 3 -C 12α-烯烃。
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公开(公告)号：US4343371A
公开(公告)日：1982-08-10
申请号：US144515
申请日：1980-04-28
IPC分类号： E21B10/14 , E21B10/16 , E21B10/52 , E21B10/56 , E21B10/567
CPC分类号： E21B10/567 , E21B10/14 , E21B10/16 , E21B10/52
摘要： A hybrid rock bit is disclosed wherein a pair of opposing extended nozzle drag bit legs are positioned adjacent a pair of opposed tungsten carbide roller cones. The extended nozzle face nearest the hole bottom has a multiplicity of diamond inserts mounted therein. The diamond inserts are strategically positioned to remove the ridges between the kerf rows in the hole bottom formed by the inserts in the roller cones.
摘要翻译： 公开了一种混合岩石钻头，其中一对相对的延伸喷嘴拖曳钻头腿邻近一对相对的碳化钨辊锥定位。 最靠近孔底部的延伸的喷嘴面具有安装在其中的多个金刚石刀片。 金刚石刀片有策略地定位，以去除由滚子锥体中的刀片形成的孔底部的切口排之间的脊。
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公开(公告)号：US4231438A
公开(公告)日：1980-11-04
申请号：US949783
申请日：1978-10-10
申请人： Lloyd L. Garner , Charles R. Harris
发明人： Lloyd L. Garner , Charles R. Harris
摘要： A drill bit is disclosed for maintaining a desired direction of drilling or to reduce the deviation already established. The drill bit includes a plurality of legs with each leg having a cone cutter rotatively supported thereon. A plurality of annular rows of cutting inserts are circumferentially mounted on the conical surface of each cutter. Each cone cutter further includes a heel portion adjacent the base of the conical surface. The heel portion is of sufficient mass to support the gage row of cutting elements. The gage row of each cone extends further out from the cone axis than any of the intermediate adjacent rows in such a manner that the annular area of the hole bottom cut by the gage inserts is lower than any other area cut by the intermediate rows of cutting inserts. This extended gage row construction enables the gage inserts to cut into any sloping wall to produce a sharp corner and bring the hole back into line with the drill string. The cutting inserts of each gage row include relatively large cutting faces in the direction of the sidewalls of the bore hole in order to have substantial surface contact with the gage of the bore hole.
摘要翻译： 公开了一种用于保持所需钻孔方向或减少已经建立的偏差的钻头。 钻头包括多个腿部，每个腿部具有可旋转地支撑在其上的锥形切割器。 多个环形排的切削刀片周向地安装在每个刀具的锥形表面上。 每个锥形切割器还包括邻近锥形表面的基部的跟部。 脚跟部分具有足够的质量以支撑切割元件的量规排。 每个锥体的规格行比锥形轴线进一步从任何中间相邻的行延伸出来，使得由量规插入件切割的孔底部的环形区域低于由中间切割行切割的任何其它区域 插入。 这种扩展的规格行结构使得计量插入件能够切割成任何倾斜的壁以产生尖锐的拐角并使孔返回与钻柱成一直线。 每个规格行的切削刀片在钻孔的侧壁的方向上包括相对大的切削面，以便与钻孔的表面具有实质的表面接触。
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公开(公告)号：US4150728A
公开(公告)日：1979-04-24
申请号：US846570
申请日：1977-10-28
CPC分类号： E21B10/52
摘要： A rock bit for drilling hard formations has a bit body with a plurality of rolling cone cutters mounted on it for rotation with rotation of the bit body. The cutters each have a plurality of recesses in their outer surfaces and a tungsten carbide insert is interference fitted into each of said recesses. A large diameter rock bit has such inserts larger than about 3/4 inch diameter and a cavity is provided in the cylindrical base of such an insert. The cavity has a volume in the range of from about 15 to 30% of the volume of the cylindrical base and extends into the cylindrical base a distance of at least about 40% of the diameter of the base. The depth of the recess is more than half of the length of the portion of the insert that grips the recess in which it is inserted. Large savings in expensive tungsten carbide can be made without decreasing performance of the tungsten carbide inserts.
摘要翻译： 用于钻出硬结构的岩石钻头具有安装在其上的多个滚动锥形切割器的一个主体，用于随着钻头体的旋转而旋转。 切割器在其外表面中各具有多个凹部，并且碳化钨刀片被干涉地装配到每个所述凹部中。 大直径岩石钻头具有大于约3/4英寸直径的这种插入件，并且在这种插入件的圆柱形基座中设置有空腔。 空腔的体积在圆柱形基座的体积的约15至30％的范围内，并延伸到圆柱形基座的至少约基座直径的40％的距离。 凹槽的深度大于插入物嵌入其中的凹部的部分长度的一半以上。 可以在不降低碳化钨刀片性能的情况下大量节省昂贵的碳化钨。
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公开(公告)号：US4203496A
公开(公告)日：1980-05-20
申请号：US951978
申请日：1978-10-16
CPC分类号： E21B10/083 , E21B10/50 , E21B10/52
摘要： A Zublin type rotary drill bit is disclosed having a main body rotating about a main axis. The bit body includes a journl pin extending downwardly therefrom, with the journal pin forming a second axis disposed at an angle with respect to the main axis. The journal pin has a cutter rotatively mounted thereon, with the cutter having a spherical outer surface which has a plurality of inner rows of tungsten carbide mounted thereon. The gage row of the cutter is also formed on the spherical outer surface and defines a plane intersecting the intersection of the main and second axes. The cutter gage row is formed by a plurality of inserts having synthetic diamond cutting surfaces, which are facing downwardly toward the apex of the cutter, in order to scrape the sides of the bore hole during the downwardly traveling portion of the gage insert travel cycle. The cutter also has a heel portion which is located adjacent the backside of the gage inserts for protecting the inserts during the upwardly traveling portion of the gage insert travel cycle.
摘要翻译： 公开了一种苏布兰式旋转钻头，其主体围绕主轴线旋转。 钻头体包括从其向下延伸的螺纹销，轴颈销形成相对于主轴线成一定角度设置的第二轴线。 轴颈销具有可旋转地安装在其上的切割器，切割器具有球形外表面，其具有安装在其上的多个内排碳化钨。 切割器的规格行也形成在球形外表面上并且限定与主轴和第二轴相交的平面。 切割量规列由具有合成金刚石切割表面的多个插入件形成，该表面向下朝向切割器的顶点朝下，以便在量规插入件行进循环的向下行进部分期间刮擦钻孔的侧面。 刀具还具有邻近量规插入件的后侧的跟部，用于在量规插入件行进循环的向上行进部分期间保护插入件。
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公开(公告)号：US3664586A
公开(公告)日：1972-05-23
申请号：US3664586D
申请日：1970-07-06
申请人： CHARLES R HARRIS SR
发明人： HARRIS CHARLES R SR
CPC分类号： B05B3/06
摘要： A TUBULAR BODY INCLUDING RELATIVELY ANGULATED TUBULAR LEGS JOINED AT ONE PAIR OF ADJACENT ENDS WITH THEIR INTERIORS COMMUNICATED WITH EACH OTHER. A ROTARY COUPLING MEMBER IS CARRIED BY THE FREE END OF ONE LEG FOR ROTARY CONNECTION WITH THE OUTLET END OF AN ASSOCIATED WATER SUPPLY PIPE AND THE FREE END OF THE OTHER LEG INCLUDES MEANS DEFINING A WATER JET OUTLET NOZZLE FOR ENDWISE OUTWARDLY DIRECTING A DISCHARGE OF WATER THEREFROM. THE FREE END OF THE OTHER LEG FURTHER INCLUDES WATER JET DEFLECTING PANEL STRUCTURE SUPPORTED FROM THE OTHER LEG FOR ADJUSTABLE REGISTRY WITH AND INCLINATION RELATIVE TO THE PATH OF THE JET OF WATER FROM THE NOZZLE.
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公开(公告)号：US642172A
公开(公告)日：1900-01-30
申请号：US1899718580
申请日：1899-05-27
发明人： SWEITZER CHARLES C
CPC分类号： A47L11/4041
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公开(公告)号：US5462807A
公开(公告)日：1995-10-31
申请号：US110179
申请日：1993-08-20
IPC分类号： B32B27/32 , B32B27/08 , C08F4/642 , C08F4/6592 , C08F10/00 , C08L23/08 , C09J123/08 , B32B27/00
CPC分类号： B32B27/08 , C08L23/0815 , C08L23/0876 , Y10S428/913 , Y10T428/1352 , Y10T428/24843 , Y10T428/2826 , Y10T428/31504 , Y10T428/31855 , Y10T428/31909 , Y10T428/31913 , Y10T428/31938
摘要： The invention concerns a certain class of polymers, their production into films and applications for their use. These polymers have unique properties which make them particularly well suited for use in polymeric films. These films are very useful in applications requiring heat sealability, particularly those applications containing an ionomer film.It has been discovered that polymers derived from metallocene catalyst systems surprisingly heat seal extremely well, as compared to polymer produced by conventional Ziegler-Natta catalysts, to a class of polymers known as ionomers.
摘要翻译： 本发明涉及一类聚合物，它们的生产成膜和应用。 这些聚合物具有独特的性质，使得它们特别适用于聚合物膜。 这些膜在需要热封性的应用中是非常有用的，特别是那些包含离聚物膜的应用。 已经发现，与由常规齐格勒 - 纳塔催化剂生产的聚合物相比，衍生自茂金属催化剂体系的聚合物与称为离聚物的一类聚合物相比，令人惊奇地热密封地热密封。
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