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1.
公开(公告)号:US20120094049A1
公开(公告)日:2012-04-19
申请号:US12906034
申请日:2010-10-15
申请人: James M. Killough
发明人: James M. Killough
CPC分类号: C08K3/34 , C08K3/016 , Y10T428/1397 , C08L23/02
摘要: The use of talc as a fire performance modifier in polymer compositions is disclosed, in which the talc is present in an amount less than 30 percent by weight of the total weight of the polymer composition, and also in amounts ranging from 5 to 30 percent by weight of the polymer composition. In such polymer compositions, the impact performance of the composition is not compromised, the composition, for example, being useful in manufacture of plastic and polymer based pallets for storage and for warehouse use. Talc is disclosed to act as a fire performance modifier and char agent at concentrations as low as 5 weight percent in polymer compositions by modifying the Heat Release Rate shown by, first, lowering the Peak Heat Release, and second, by shortening the time period to reach the Peak Heat Release compared to the virgin polymer resin.
摘要翻译: 公开了在聚合物组合物中使用滑石作为耐火性能改性剂,其中滑石以小于聚合物组合物总重量的30重量%的量存在,并且其用量范围为5-30% 聚合物组合物的重量。 在这种聚合物组合物中,组合物的冲击性能不受影响,组合物例如可用于制造用于储存和仓储使用的塑料和聚合物基托盘。 滑石被公开用作聚合物组合物中低至5重量%浓度的耐火性能改性剂和助剂,通过改变首先降低峰值热释放所示出的热释放速率,以及其次缩短时间 与原始聚合物树脂相比达到峰值热释放。
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公开(公告)号:US20110065846A1
公开(公告)日:2011-03-17
申请号:US12584755
申请日:2009-09-11
CPC分类号: C08F10/00 , C08F110/02 , C08F2/14 , C08F2/005 , C08F2500/12 , C08F2500/07 , C08F2500/24
摘要: A process for producing an olefin polymer in a slurry polymerisation process is disclosed, in which the process is operating at a temperature of 90° C. to 107° C. and utilising a chromium catalyst having an activity of at least 1,000 g polymer/g catalyst/hour on a support having a pore volume of at least 1.3 cm3/g, comprising adding to the polymerisation mixture from 0.1 to 100 ppm by weight of an anti-static agent, wherein the resulting polymer has a particle size distribution such that less than 8 vol %, preferably less than 5 Vol % of the polymer particles have an average diameter of 125 μm or less.
摘要翻译: 公开了一种在淤浆聚合方法中制备烯烃聚合物的方法,其中该方法在90℃至107℃的温度下操作,并且使用具有至少1,000g聚合物/ g活性的铬催化剂 催化剂/小时在孔体积为至少1.3cm 3 / g的载体上,包括向聚合混合物中加入0.1至100重量ppm的抗静电剂,其中所得聚合物的粒度分布使得较少 高于8体积%,优选小于5体积%的聚合物颗粒的平均直径为125μm以下。
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