Propellant binder prepared from a PCP/HTPB block polymer
    1.
    发明授权
    Propellant binder prepared from a PCP/HTPB block polymer 失效
    由PCP / HTPB嵌段聚合物制备的推进剂粘合剂

    公开(公告)号:US4853051A

    公开(公告)日:1989-08-01

    申请号:US191807

    申请日:1988-05-05

    IPC分类号: C06B45/10 C08G18/69

    CPC分类号: C08G18/694 C06B45/10

    摘要: Binders for propellants for the like comprise elastomers which are based on block copolymers in which a pair of poly(caprolactone) blocks flank a central hydroxyl-terminated poly(butadiene) block. The block polymers are cured with isocyanates through the OH termini of the poly(caprolactone) blocks. The elastomers have inherent energies and other characteristics intermediate those of PCP and HTPB and have good compatibility with nitrate ester plasticizers.

    摘要翻译: 用于类似推进剂的粘合剂包括基于嵌段共聚物的弹性体,其中一对聚(己内酯)嵌段位于中心羟基封端的聚(丁二烯)嵌段。 嵌段聚合物通过聚(己内酯)嵌段的OH末端用异氰酸酯固化。 弹性体具有固有的能量和其他与PCP和HTPB相比具有的特性,与硝酸酯增塑剂具有良好的相容性。

    High molecular weight polycaprolactone prepolymers used in high-energy
formulations
    2.
    发明授权
    High molecular weight polycaprolactone prepolymers used in high-energy formulations 失效
    用于高能配方的高分子量聚己内酯预聚物

    公开(公告)号:US4775432A

    公开(公告)日:1988-10-04

    申请号:US927887

    申请日:1986-11-06

    IPC分类号: C06B45/10 C08G18/42 C08G63/08

    摘要: Poly(caprolactone) polymers are provided having molecular weights of 4000 or higher, are used to form propellant binders. When the high molecular weight poly(caprolactone) polymers are used in propellant formulations and cured with isocyanates of adequate functionality, propellants are produced having improved stress and strain characteristics relative to presently formulated propellants having binders of cured, lower molecular weight poly(caprolactone) polymers.

    摘要翻译: 提供具有4000或更高分子量的聚(己内酯)聚合物,用于形成推进剂粘合剂。 当高分子量聚(己内酯)聚合物用于推进剂制剂中并用具有足够功能的异氰酸酯固化时,产生相对于具有固化的低分子量聚(己内酯)聚合物的粘合剂的目前配制的推进剂具有改进的应力和应变特性的推进剂 。