发明授权
US4244857A Curing agent for polyepoxides and epoxy resins and composites cured
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失效
用于聚环氧化物和环氧树脂的固化剂以及用其固化的复合材料
- 专利标题： Curing agent for polyepoxides and epoxy resins and composites cured therewith
- 专利标题（中）： 用于聚环氧化物和环氧树脂的固化剂以及用其固化的复合材料
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申请号： US70771申请日： 1979-08-30
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公开(公告)号： US4244857A公开(公告)日： 1981-01-13
- 发明人: Tito T. Serafini , Peter Delvigs , Raymond D. Vannucci
- 申请人： Tito T. Serafini , Peter Delvigs , Raymond D. Vannucci
- 申请人地址： DC Washington
- 专利权人： The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- 当前专利权人： The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- 当前专利权人地址： DC Washington
- 主分类号： C07D209/48
- IPC分类号： C07D209/48 ; C08G59/40 ; C08K5/3412 ; C08K7/06 ; C07D207/06 ; C08G59/02
摘要：
A curing agent for a polyepoxide has the formula: ##STR1## wherein R.sub.1 is a divalent aryl radical such as phenylene and wherein R.sub.2 is a tetravalent aryl radical such as a tetravalent benzene radical. An epoxide is cured by admixture with the curing agent. The cured epoxy product retains the usual properties of cured epoxides and, in addition, has a high char residue after burning, on the order of 45% by weight. The high char residue is of value in preventing release to the atmosphere of carbon fibers from carbon fiber-epoxy resin composites in the event of burning of the composite.
公开/授权文献
- USD400010S Tool container 公开/授权日：1998-10-27
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