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    • 43. 发明申请
    • Thermoset recycling methods
    • 热固回收方法
    • US20020101004A1
    • 2002-08-01
    • US09919756
    • 2001-08-01
    • Richard J. FarrisJeremy E. Morin
    • B29C047/00B29B017/00
    • C08J11/08B29B17/0042B29B2017/046B29C47/0019B29C47/02B29C47/0876B29C47/54B29K2021/00B29K2105/26B29L2007/002B29L2030/00C08J2321/00Y02W30/62Y02W30/625Y02W30/701
    • The invention provides new methods for recycling thermoset materials such as natural rubbers, synthetic rubbers, silicone rubbers, and other elastomers and cross-linked polymers (e.g., isoprene rubbers; butyl rubbers; ethylene-propylene-diene rubbers, nullEPDMnull; nitrile, or acrylonitrile butadiene rubbers, nullNBRnull; styrene-butadiene rubbers, nullSBRnull; hard rubbers such as EBONITEnull; mixtures of vulcanized rubbers from discarded tires). The invention is based on the discovery that by combining powdered or particulate thermoset materials with lubricants such as aromatic or paraffinic rubber processing oils or volatile solvents, the thermoset materials can be recycled under moderate temperature and pressure conditions to rapidly produce materials having physical properties comparable to those of virgin thermoset materials. The resulting materials can, for example, be extruded or compaction molded into new shapes such as panels. The new recycling methods can also be carried out in either batch or continuous processes.
    • 本发明提供了用于回收热固性材料如天然橡胶,合成橡胶,硅橡胶和其它弹性体和交联聚合物(例如,异戊二烯橡胶;丁基橡胶;乙烯 - 丙烯 - 二烯橡胶,“EPDM”;腈, 或丙烯腈丁二烯橡胶“NBR”;苯乙烯 - 丁二烯橡胶“SBR”;硬橡胶,例如废弃轮胎的硫化橡胶的混合物)。 本发明基于以下发现:通过将粉末状或颗粒状热固性材料与润滑剂如芳香族或石蜡橡胶加工油或挥发性溶剂结合,热固性材料可以在中等温度和压力条件下再循环,以快速生产具有与 那些处女热固性材料。 所得到的材料可以例如被挤出或压实成型为新的形状例如面板。 新的回收方法也可以分批或连续进行。
    • 45. 发明申请
    • Method for making balloon catheter
    • 气囊导管方法
    • US20020084551A1
    • 2002-07-04
    • US09995450
    • 2001-11-27
    • Keun-Ho Lee
    • D01D005/24B32B003/26B29C047/00
    • A61M25/1029A61M25/1036
    • The present invention relates to a method for making a silicon balloon catheter in which a first tube having its outer diameter slightly smaller than that of a desired catheter is formed by an extruding method, mold lubricant is coated at a portion of a balloon injection opening, a thin film type second tube is formed at the coated outer surface of the first tube by a second extruding, and then the catheter is vulcanized and cut. As a result, when liquid is injected to an expansion tube, the second tube is separated from the first tube, thereby performing a function as a balloon. The method for making a balloon catheter using silicon rubber includes the steps of: forming a first tube by extruding firstly, the tube having its outer diameter slightly smaller than that of a desired catheter, then vulcanizing and cutting the first tube; punching two balloon injection openings having small diameter at a portion for expanding into balloon in the first tube after inserting a support rod into a discharge tube path; coating mold lubricant at a portion of the balloon injection opening; connecting the first tubes coated the mold lubricant by using a connection unit after removing the support rod, and thereafter forming a second tube at the coated outside surface of the first tube by extruding secondly, performing a vulcanizing process and cutting again; forming a tip at the tip portion of the first and second tubes; and punching a urine discharge opening at the first tube.
    • 本发明涉及一种制造硅球导管的方法,其中通过挤出方法形成其外径略小于所需导管的外径的第一管,在气球注射开口的一部分涂覆模具润滑剂, 通过第二挤压在第一管的涂覆的外表面上形成薄膜型第二管,然后将导管硫化和切割。 结果,当将液体注入膨胀管时,第二管与第一管分离,从而执行气球的功能。 使用硅橡胶制造球囊导管的方法包括以下步骤:首先挤出第一管,其外径略小于期望的导管的外径,然后硫化和切割第一管; 在将支撑杆插入放电管路之后,在第一管中的一部分处冲压具有小直径的两个气球注射开口,以扩展到第一管中的气囊; 在球囊注射开口的一部分涂覆模具润滑剂; 通过在移除支撑杆之后使用连接单元连接涂覆了模具润滑剂的第一管,然后通过二次挤出在第一管的涂覆的外表面上形成第二管,再次进行硫化处理和切割; 在所述第一和第二管的尖端部分处形成尖端; 并在第一管上冲压排尿口。
    • 46. 发明申请
    • Molded surface fastener, and molding method and molding apparatus of the same
    • 模制表面紧固件及其成型方法及其成型装置
    • US20020056176A1
    • 2002-05-16
    • US10036446
    • 2002-01-07
    • YKK Corporation
    • Ryuichi Murasaki
    • B29C047/00
    • A44B18/0049A44B18/0061B29C48/08B29C48/12B29C48/13B29C48/30B29C48/302Y10T24/27Y10T24/275Y10T24/2775Y10T24/2792
    • Molten resin material is continuously extruded from an extruding hole including a plurality of engaging-element-molding portions disposed with a constant pitch in a width direction of an extruding nozzle and a substrate-molding portion with which lower ends of the engaging-element-molding portions communicate. An ascending/descending member disposed at a front face of the extruding nozzle and made of a laterally long plank ascends and descends to vertically open and close the extruding hole of the extruding nozzle. As a result of such continuous molding, a surface fastener is continuously molded in which each of plurality engaging elements has stem and an engaging extruding head projecting at least toward one side from an end of the stem standing on a surface of a flat substrate. The engaging element thus molded has a thickness, in a direction perpendicular to a projecting direction of the engaging head, gradually increasing from a top portion of the engaging head to a base end of the stem. With such engaging elements that can be molded with a not conventional but new shape in various sizes, and its molding method and apparatus, maintenance and management are easy and productivity is high.
    • 熔融树脂材料从包括在挤出喷嘴的宽度方向上以恒定间距设置的多个接合元件成型部分的挤出孔和基材成型部分连续挤出,该接合元件成型体的下端 部分沟通。 设置在挤压喷嘴的前表面并由横向长的板制成的上升/下降部件上升并下降以垂直打开和关闭挤出喷嘴的挤压孔。 作为这种连续成型的结果,连续地模制表面紧固件,其中多个接合元件中的每一个具有杆部,并且接合挤压头部至少朝向位于平坦基板的表面上的杆的端部朝向一侧突出。 如此模制的接合元件在垂直于接合头的突出方向的方向上具有从接合头的顶部到杆的基端逐渐增加的厚度。 利用可以以不同尺寸的不常规但新的形状模制的这种接合元件,其成型方法和装置,维护和管理容易且生产率高。
    • 49. 发明申请
    • Methods and apparatus for recycling asphalt shingle material into shaped products
    • 将沥青瓦片材料回收成成型产品的方法和设备
    • US20020011687A1
    • 2002-01-31
    • US09838043
    • 2001-04-18
    • Donald J. Mischo
    • B29C047/00B29C059/04
    • B29B17/0026B29C47/00B29C47/0019B29C47/003B29C47/0054B29K2095/00B29L2007/002B29L2031/104Y02W30/62
    • Used and manufacturing scrap asphalt shingle material is processed into a fine material comprising smaller sized pieces of shingle material and a relatively high aggregate content. The fine material is finish processed into shaped products adapted to take advantage of the high aggregate content therein. Processing of the fine material includes (i) grinding and heating the aggregate and smaller sized pieces of shingle material into a homogenous mixture, (ii) forming the shaped products via molding with pressure, or extruding and cutting the extruded mixture, and embedding a surface treatment material into the shaped products. The fine material may be produced by an initial process that includes shredding the shingle material into pieces of a maximum size, and separating the shredded material into fine material and course material; such that the fine material comprises smaller sized pieces of shredded material and loose aggregate dislodged from the larger pieces during the shredding process; and the course material comprises the larger flakes from the shredding process wherein the flakes may be forward to finish processing with advantage taken of the larger size and low aggregate content.
    • 二手和制造废料沥青瓦板材料被加工成细小的材料,其包括较小尺寸的瓦片材料和较高的聚集体含量。 精细材料被精加工成适于利用其中高聚集体含量的成型产品。 精细材料的加工包括(i)将骨料和较小尺寸的瓦片材料块研磨和加热成均匀的混合物,(ii)通过压力成型或挤出和切割挤出的混合物形成成形产品,并且嵌入表面 处理材料成型成品。 精细材料可以通过初始方法生产,包括将木瓦材料切割成最大尺寸的碎片,并将切碎的材料分离成细材料和材料; 使得精细材料包括较小尺寸的切碎材料碎片和在粉碎过程中从较大碎片移出的松散聚集体; 并且该过程材料包括来自粉碎过程的较大的薄片,其中薄片可以向前以优化采用更大尺寸和低聚集体含量的最终处理。