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US5037689A Toughened thermosetting structural materials 失效
强化热固性结构材料

Toughened thermosetting structural materials
摘要:
Toughened bismaleimide resin systems capable of preparing carbon fiber reinforced composites having compression after impact strengths of greater than 40 Ksi are prepared from bismaleimide matrix resin systems containing a member of a limited set of soluble thermoplastic polyimides in particulate form.
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