| 发明名称 |
HYDROXY TERMINATED POLYBUTADIENE BASED POLYURETHANE BOUND PROPELLANT GRAINS |
| 摘要 |
<p>Salicylate esters have been found to be suitable blocking agents for polyisocyanates, enabling preparation of hydroxy terminated polybutadiene based polyurethane bound propellant grains having extended pot life. Unblocking occurs readily at normal propellant cure temperatures, allowing normal cure rates.</p> |
| 申请公布号 |
CA1111437(A) |
申请公布日期 |
1981.10.27 |
| 申请号 |
CA19770290446 |
申请日期 |
1977.11.08 |
| 申请人 |
THIOKOL CORPORATION |
发明人 |
GRAHAM, WILLIAM H.;SHEPARD, INELLA G. |
| 分类号 |
C08G18/00;B01J31/00;C06D5/00;C06D5/06;C07C67/00;C07C239/00;C07C269/02;C07C271/08;C07C271/58;C08G18/69;C08G18/78;C08G18/80;(IPC1-7):07C125/06;08K5/16 |
主分类号 |
C08G18/00 |
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