Internally-plasticized polyethers from substituted oxetanes
    2.
    发明授权
    Internally-plasticized polyethers from substituted oxetanes 失效
    来自取代的氧杂环丁烷的内部增塑的聚醚

    公开(公告)号:US4764586A

    公开(公告)日:1988-08-16

    申请号:US925659

    申请日:1986-10-29

    摘要: Internally plasticized elastomeric binders for projectile propellants are cured polyethers containing THF, CYMMO plus BMEMO, BEEMO and/or OMMO mer units. The polyethers are fluid at room temperature and are miscible with nitrate ester plasticizers. Propellant binders prepared from these polyethers are curable, have low T.sub.g 's, good mechanical properties, and I.sub.sp 's comparable to PEG-based binders.

    摘要翻译: 用于射弹推进剂的内部增塑弹性体粘合剂是含有THF,CYMMO加BMEMO,BEEMO和/或OMMO聚合物单元的固化聚醚。 聚醚在室温下是流体,并与硝酸酯增塑剂混溶。 由这些聚醚制备的推进剂粘合剂是可固化的,具有低Tg,良好的机械性能,和Isp可与PEG基粘合剂相当。

    Low cost fluorocarbon flare compositions
    3.
    发明授权
    Low cost fluorocarbon flare compositions 失效
    低成本碳氟化合物火炬组合物

    公开(公告)号:US4445947A

    公开(公告)日:1984-05-01

    申请号:US476684

    申请日:1983-03-18

    IPC分类号: C06B43/00 C06B45/10 C06C15/00

    摘要: A low cost infrared flare composition which uses a high molecular weight fluorinated resin, a low molecular weight fluorinated resin, a polymerizing solvent, and an initiator to form a binder which is combined with a reducing agent to yield a composition readily processable into various grain shapes and varying degrees of hardness thereby providing more consistent burning rates.

    摘要翻译: 低成本的红外线火炬组合物,其使用高分子量氟化树脂,低分子量氟化树脂,聚合溶剂和引发剂来形成粘合剂,其与还原剂组合以产生易于加工成各种晶粒形状的组合物 并且具有不同程度的硬度,从而提供更一致的燃烧速率。