发明名称 Novel product
摘要 Novel meta phenylenediamines are provided having one or two particular benzyl radicals as substituents along with other optional substituents on the aromatic diamine ring and optionally substituents on the benzyl aromatic ring. The diamines are sterically hindered and thereby have lower amine reactivity as compared with the unsubstituted diamines. The diamines are useful as curing agents for epoxy resins and find particular utility as extenders in the formation of novel polyurethane-polyurea polymers.
申请公布号 US4868225(A) 申请公布日期 1989.09.19
申请号 US19880232051 申请日期 1988.08.15
申请人 THE DOW CHEMICAL COMPANY 发明人 SUN, KWOK K.
分类号 C08G18/32;C08G18/65 主分类号 C08G18/32
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