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    • 3. 发明授权
    • Binders for polydiene composite propellants
    • 聚二烯复合推进剂的粘合剂
    • US4377678A
    • 1983-03-22
    • US198957
    • 1980-06-04
    • Daizo FukumaShigeru SuzukiKensho ShirotaKunihiro Harada
    • Daizo FukumaShigeru SuzukiKensho ShirotaKunihiro Harada
    • C08G18/00C06B45/10C06D5/00C08G18/69C08G18/62C08G18/48
    • C08G18/69C06B45/10
    • The present invention is a binder for a polydiene composite propellant comprising a small amount of binder and has as its object the production of the binder, which can provide stable physical properties between production lots and has a long pot life, and consists mainly of a polymer which has a predetermined molecular weight between crosslinks and which is obtained by reacting a combination of a polydiene glycol having a hydroxyl group number of 1.8-2.1 and a number average molecular weight of 1,000-5,000, a trifunctional crosslinking agent, a diisocyanate and a bifunctional chain extender. When a diene polymer having a functional group number of not more than 1 is additionally added to the above described combination, the elongation of the binder is improved and the use of a plasticizer can be reduced or eliminated.
    • PCT No.PCT / JP79 / 00252 Sec。 371日期1980年6月4日 102(e)1980年6月4日PCT申请日1979年10月5日PCT公布。 出版物WO80 / 00698 日期:1980年04月17日。本发明是一种包含少量粘合剂的聚二烯复合推进剂的粘合剂,其目的是生产粘合剂,其可以在生产批次之间提供稳定的物理性能并且具有长的适用期 并且主要由在交联之间具有预定分子量的聚合物组成,其通过使羟基数为1.8-2.1的聚二烯二醇和数均分子量为1,000-5,000的组合反应获得,三官能交联 助剂,二异氰酸酯和双官能增链剂。 当上述组合中另外加入官能团数为1以下的二烯系聚合物时,可以提高粘合剂的伸长率,减少或消除增塑剂的使用。