Small range 文档类型:"4"

Totally found 96814 items.

  • [专利] Polypropylene resin pp sheet a method for producing kinds of tray and containers using non-crosslinked pp foamed sheet mixed with high melt strength pp resin
    (KR20170029230) The present invention relates to a method for producing a non-crosslinked polypropylene foamed sheet having high melt tension which, to eliminate foaming difficulties due to the low viscosity and low melt tension of polypropylene during melting, utilizes a resin having high melt tension, and through a sheet having uniform and fine cells, increases the foaming ratio by a factor of 1.1-5. According to the present invention, the method for producing a non-crosslinked polypropylene foamed sheet having high melt tension, and a sheet produced thereby show excellent impact properties, excellent moisture barrier properties, heat resistance, moldability, and secondary processability at low temperature, show a low degree of container deformation at high temperature, and provide excellent productivity and cost-effectiveness. Also, the present invention may replace EPS, is environmentally-friendly, and may be used to produce microwavable containers, regular food containers, cup noodle containers which are exposed to high temperature and the like. COPYRIGHT KIPO 2017
  • [专利] Multi function pp filament and Products of mixture of polypropylene resin with illite
    (KR20170000307) The present invention relates to an illite-containing high function polypropylene filament and a product. More specifically, a master batch chip containing illite is mixed and dissolved with a general polymer resin chip to be produced into a chip or injection material having a desired shape. When the illite-containing high function polypropylene filament is used as a chip or an injection material, a master batch chip produced by using illite powder having a particle size of 1,000-2,000 mesh is used, and 4-20 wt% of the master batch chip and 80-96 wt% of a general polymer resin chip are mixed, so an injection material or a filament having an overall illite content of 1-10 wt% is produced to be used as a high function environmentally-friendly fiber material. When the molded material is spun in a filament fiber shape, by considering the blocking of a spinning nozzle or the tractive properties of a yarn, 4-20 wt% of a master batch chip containing illite having a particle size of 3,000 mesh which is higher than the same is mixed with 80-98 wt% of a general polymer resin chip. Accordingly, a material having an overall illite content of 0.5-5 wt% is obtained and knitted, so an illite-containing high function polypropylene filament capable of being utilized as a high function environmentally-friendly clothing material or a packing material is obtained. COPYRIGHT KIPO 2017
  • [专利] 具​改良​熔​體​強度​穩定性​之​長​鏈​分支​聚丙烯​組成​物
    (TW201718668) 本​發明​關於​長​鏈​分支​聚丙烯​組成​物(b-PPC),其​包含​至少​一種​長​鏈​分支​丙烯​均​聚​物​或​丙烯​共聚物(b-PP)以及​至少​一種​直​鏈​丙烯​均​聚​物​或​丙烯​共聚物(l-PP)。 該​長​鏈​分支​聚丙烯​組成​物(b-PPC)適合​發泡​體​應用。 The invention relates to long-chain branched polypropylene composition (b-PPC) comprising at least one long-chain branched propylene homopolymer or copolymer (b-PP) and at least one linear propylene homopolymer or copolymer (l-PP). The long-chain branched polypropylene composition (b-PPC) being suitable for foam application.
  • [专利] Method for producing polypropylene molded body, and polypropylene molded body
    (JP2016056316) PROBLEM TO BE SOLVED: To provide a method for producing a PP molded body excellent in transparency, mechanical properties and physical properties, and a PP molded body obtained by the method.SOLUTION: The polypropylene molded body is obtained by executing solid phase compression molding at 25 to 170°C to at least one direction at 1.2 times or more to a pre-molded body made of a resin composition. The resin composition is blended with a block copolymer hydride in 0.5 to 50 pts.wt. obtained by hydriding 90% or more of all the unsaturated bonds in a block copolymer, to 100 pts.wt. of polypropylene (PP), composed of at least two polymer blocks [A] essentially consisting of the repeating unit derived from an aromatic vinyl compound and at least one polymer block [B] essentially consisting of the repeating unit derived from a linear conjugated diene compound, in which, provided that the weight fraction occupied in the whole block copolymer of all the polymer blocks [A] is defined as wA and the weight fraction occupied in the whole block copolymer of all the polymer blocks [B] is defined as wB, the ratio between wA and wB (wA:w) is (30:70) to (60:40).SELECTED DRAWING: None
  • [专利] 聚丙烯的生产方法及其装置
    本发明公开了一种聚丙烯英文名称:Polypropylene(简称PP)的生产方法及其装置,属于高分子合成技术领域。包括预聚合、聚合——闪蒸、脱气——汽蒸、干燥——挤压、造粒——产品包装等步骤,本发明通过优化预聚合、聚合、闪蒸、脱气、汽蒸、干燥、挤压造粒等工艺步骤和参数,提高了原料的利用率,同时创新增设废气及废液回收系统,增设洗涤塔热能回收系统,将回收的热能用于油脂加热,提高了热能利用效率;粉料及凝液回收装置的设置,提高了生产效率,降低了生产成本;切粒水供应增设备用水箱,防止了因水箱故障造成的停机,提高了生产效率;退、排气管线的改进,消除了安全隐患又节约了成本,且环保性好。
  • [专利] 一种​聚丙烯/聚​苯​醚​PP/PPO​合金及​其​制备​方法
    (CN106928542) 本​发明​提供​种​聚丙烯/聚​苯​醚​PP/PPO​合金及​其​制备​方法,以​重量​百分数​记,其​原料​包括​70-93%聚丙烯​PP,5-20%聚​苯​醚​PPO,2-10%相容​剂,其中​相容​剂​为​乙烯​辛​烯​嵌​段​共聚物​接枝​马来​酸酐​的​聚合物,马来​酸酐​的​接枝​率​为​0.2-2wt%。将​原料​按​配比​混合​均匀​加入​双​螺杆​挤出​机中,经​熔融​反应​性​挤出,造粒,制得​PP/PPO​合金,双​螺杆​挤出​机​温度​为​210℃-270℃,长​径​比为​25-50,螺杆​转速​180-600​转/分钟。本​发明​由于​采用​了​新型​的​相容​剂,在​大幅​降低​聚​苯​醚​使用量​的​同时​可以​制得​同时​具备​高​刚、耐热、高抗​冲​性能​的​合金​材料。制备​工艺​简单、生产成本​较低,产品​综合​性能​优异。
  • [专利] 一种​高​刚​耐热​聚丙烯/聚​苯​硫​醚​PP/PPS​合金及​其​制备​方法
    (CN106928540) 本​发明​提供​种​高​刚​耐热​聚丙烯/聚​苯​醚​PP/PPS​合金及​其​制备​方法,以​重量​百分数​记,其​原料​包括​70-93%聚丙烯​PP,5-20%聚​苯​硫​醚​PPS,2-10%相容​剂,其中​相容​剂​为​乙烯​辛​烯​嵌​段​共聚物​接枝​马来​酸酐​的​聚合物,马来​酸酐​的​接枝​率​为​0.2-2wt%。将​原料​按​配比​混合​均匀​加入​双​螺杆​挤出​机中,经​熔融​反应​性​挤出,造粒,制得​PP/PPS​合金,双​螺杆​挤出​机​温度​为​260℃-320℃,长​径​比为​25-50,螺杆​转速​180-600​转/分钟。本​发明​由于​采用​了​新型​的​相容​剂,在​大幅​降低​聚​苯​硫​醚​使用量​的​同时​可以​制得​同时​具备​高​刚、耐热、抗​冲​性能​好的​合金​材料。制备​工艺​简单、生产成本​较低,产品​综合​性能​优异。
  • [专利] 聚丙烯​PP​底​材​涂层​及其​制备​方法
    (CN105925080) 本​发明​公开​了​种​聚丙烯​PP​底​材​涂层,包括​如下​重量​份​的​原料:30~45​份​树脂​I,0~5.0​份​树脂​II,5~15​份​树脂​III,0~10​份​填料​I,5~20​份​填料​II,0~1.0​份​消​泡​剂,1.0~3.0​份​炭黑​粉,0.1~0.3​份​流​平​剂,7~21​份​溶剂,10~23​份​钛白粉,此外,本​发明​还​提出​了​上述​聚丙烯​PP​底​材​涂层​的​制备​方法。本​发明​彻底解决​了​目前​技术​要求​下​PP​涂装​的​耐水性​要求,并且​已经​超过​了​美国​PPG​和​欧洲​的​阿克苏​PP​油漆​涂装​技术。
  • [专利] A method for preparing carbon nano tube reinforced polypropylene
    (KR20130036114) PURPOSE: A manufacturing method of a CNT/PP composite material is provided to improve mechanical properties of the composite material, and to obtain the excellent CNT/PP composite material with excellent dispersity. CONSTITUTION: A manufacturing method of a CNT/PP composite material comprises a step of manufacturing a PP powder/xylene mixture; a step of stirring the mixture at 100-150 deg. C for 1-3 hours; a step of manufacturing a CNT/xylene dispersion solution by mixing a carbon nanotubes(CNT) and xylene; a step of injecting swollen the CNT/xylene dispersed solution into the swollen PP powder/xylene mixture; a step of ultra-wave dispersing the result; and a step of removing solvent, deaerating the solvent, and manufacturing final CNT/PP powder.
  • [专利] Branched polypropylene for foam applications
    (WO201671396) The present invention relates to a polypropylene composition comprising a branched polypropylene (b-PP) having high melt strength (HMS). Furthermore, the present invention also relates to a method for providing the corresponding polypropylene having composition comprising the branched polypropylene (b-PP)and to a foam with the polypropylene composition comprising the branched polypropylene (b-PP). The branched polypropylene (b-PP)is based on a random copolymer with a small amount of ethylene.
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