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公开(公告)号:US5786416A
公开(公告)日:1998-07-28
申请号:US959956
申请日:1997-10-24
IPC分类号: C08K3/08 , C08K9/08 , C08L53/00 , C08L53/02 , C08L55/02 , F42B12/74 , A01K95/00 , F42B7/00 , F42B12/72
摘要: A high specific gravity composition suitable for use as a lead-substitute, especially for firearms ammunition and angling weights, comprises: (i) a polymer matrix comprising: (a) at least one rigid thermoplastic polymer component, e.g. polypropylene, polystyrene, etc. and (b) at least one elastomeric thermoplastic polymer component, e.g. various polystyrene-based copolymers; and (ii) dispersed in the polymer matrix particles of a high specific gravity weight material having a density and present in an amount such that the composition has a specific gravity of greater than one, preferably a specific gravity in the range 8 to 12. The high specific gravity weight material is preferably tungsten powder.
摘要翻译: 适用于铅替代物,特别是用于火器弹药和钓鱼重的高比重组合物包括:(i)聚合物基质,其包含:(a)至少一种刚性热塑性聚合物组分,例如, 聚丙烯,聚苯乙烯等,和(b)至少一种弹性体热塑性聚合物组分,例如。 各种聚苯乙烯基共聚物; 和(ii)分散在高比重重量的材料的聚合物基体颗粒中,其具有密度并且存在的量使得该组合物的比重大于1,优选比重在8至12的范围内。 高比重重量材料优选为钨粉末。