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    • 23. 发明授权
    • Self-lubricating packing piece
    • 自润滑包装片
    • US5735528A
    • 1998-04-07
    • US656260
    • 1996-09-16
    • Roy C. .ANG.. Olsson
    • Roy C. .ANG.. Olsson
    • F16J15/10C08K5/17C08K5/20C08K5/205C08L21/00C08L23/16C09K3/10H01B17/58F16J15/16
    • C09K3/10C08K5/20C09K2200/047C09K2200/0617C09K2200/062Y10S277/944
    • A seal is provided around an elongated object by providing a plurality of packing pieces having external surfaces, each said packing piece being made of a material composition comprising at least one type of elastomer, and 1-10 percent by weight lubricant, calculated on the total weight of the composition, the lubricant being essentially non-combinable with said elastomer. A bushing is provided around the elongated object, the bushing is packed with the packing pieces, and, in use, the lubricant migrates to the preference, the material composition includes 1-3 percent by weight lubricant, 25-32 percent by weight elastomer, 10-13 percent by weight filler, 1-3 percent by weight activator, 0.01-3 percent by weight accelerator, 0.01-2 percent by weight vulcanizing agent, 35-55 percent by weight flame retardant, 5-8 percent by weight pH-stabilizing agent, 0.01-1 percent by weight of an agent for enhancing cross-linking between rubber and filler, 1-4 percent by weight mould release agent, and 1-3 percent by weight colorant, calculated on the total weight of the material composition. The lubricant is substantially uncombined with any others of these ingredients of the material composition.
    • PCT No.PCT / SE93 / 01086 Sec。 371日期1996年9月16日 102(e)1996年9月16日PCT 1993年12月17日PCT公布。 公开号WO95 / 16742 日期:1995年6月22日通过提供具有外表面的多个填料件,围绕细长物体设置密封件,每个所述填料件由包含至少一种类型的弹性体的材料组合物和1-10重量%的润滑剂 ,根据组合物的总重量计算,润滑剂基本上与所述弹性体不可组合。 衬套设置在细长物体周围,衬套填充有填料片,并且在使用中,润滑剂优选地迁移,材料组成包括1-3重量%的润滑剂,25-32重量%的弹性体, 10-13重量%填充剂,1-3重量%活化剂,0.01-3重量%促进剂,0.01-2重量%硫化剂,35-55重量%阻燃剂,5-8重量%pH- 稳定剂,0.01-1重量%的用于增强橡胶和填料之间交联的试剂,1-4重量%脱模剂和1-3重量%着色剂,根据材料组合物的总重量计算 。 润滑剂与材料组合物的这些成分中的任何其它物质基本上未结合。