PROBLEM TO BE SOLVED: To provide a phosphorus-containing flame-retardant curing agent for curing a resin and for imparting flame retardancy to the cured resin.;SOLUTION: This curing agent has a specific phosphorus-containing rigid group represented by the formula (wherein R1 and R2 are each H or a 1-18C alkyl, 6-18C aryl, 6-18C substituted aryl, 6-18C arylmethylene, or 6-18C substituted arylmethylene group; and Ar is an optionally,substituted phenyl or phenoxy group).;COPYRIGHT: (C)2003,JPO
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机译：解决的问题：提供一种含磷的阻燃固化剂，用于固化树脂并赋予固化后的树脂以阻燃性。解决方案：该固化剂具有特定的含磷的刚性基团，由下式表示： R 1 和R 2 分别为H或1-18C烷基，6-18C芳基，6-18C取代的芳基，6-18C芳基亚甲基或6-18C取代的H芳基亚甲基;并且Ar是一个可选的取代的苯基或苯氧基）.;版权：（C）2003，JPO
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