Tracer composition and method of producing same
    32.
    发明授权
    Tracer composition and method of producing same 失效
    示踪剂组合物及其生产方法

    公开(公告)号:US4979999A

    公开(公告)日:1990-12-25

    申请号:US533412

    申请日:1990-06-05

    Applicant: Paul Briere

    Inventor: Paul Briere

    CPC classification number: C06C15/00 C06B33/04

    Abstract: A tracer composition with a relatively high luminous output and a moderate burn rate includes from 35 to 47% by weight magnesium; from 40 to 53% by weight strontium nitrate, from 2 to 10% by weight magnesium carbonate, from 0 to 6% by weight color intensifier; from 0 to 6% by weight retardant and from 3 to 8% by weight of a synthetic polymer binder selected from the group consisting of (i) a terpolymer of vinylidene fluoride, hexafluoropropylene and polytetrafluoroethylene and (ii) a copolymer of vinylidene fluoride and hexafluoropropylene. The composition is produced by dry mixing all of the ingredients except the magnesium and binder, dissolving the binder in a solvent such as acetone, forming a homogeneous mixture of particulate magnesium and binder solution, adding a non-solvent such as hexane to the mixture to initiate precipitation of the binder, mixing the dry mixture with the magnesium/binder combination, and adding additional non-solvent to complete precipitation of the binder, and drying the mixture thus produced.

    Abstract translation: 具有相对高的发光输出和中等燃烧速率的示踪剂组合物包括35至47重量%的镁; 硝酸锶40〜53重量%,碳酸镁2〜10重量%,增重剂0〜6重量% 0至6重量%的阻燃剂和3至8重量%的选自以下的合成聚合物粘合剂:(i)偏二氟乙烯,六氟丙烯和聚四氟乙烯的三元共聚物和(ⅱ)偏二氟乙烯和六氟丙烯的共聚物 。 通过将除了镁和粘合剂之外的所有成分干混合制成组合物,将粘合剂溶解在溶剂如丙酮中,形成颗粒状镁和粘合剂溶液的均匀混合物,向混合物中加入非溶剂如己烷, 引发粘合剂的沉淀,将干混合物与镁/粘合剂组合混合,并加入另外的非溶剂以完全沉淀粘合剂,并干燥由此制备的混合物。

    Explosives
    35.
    发明授权

    公开(公告)号:US3177102A

    公开(公告)日:1965-04-06

    申请号:US3177102D

    CPC classification number: C06B33/04

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