发明名称 |
USE OF UREA DERIVATIVES AS ACCELERATORS FOR EPOXY RESINS |
摘要 |
A description is given of the use of asymmetrically substituted urea derivatives of the general formula (I) (see formula I) where R1 and R2 each independently are a linear or branched aliphatic hydrocarbon radical having 1 to 4 carbon atoms as accelerators in combination with dicyandiamide as latent hardener for epoxy resin systems based on unhalogenated or halogenated bisphenols of type A or F and also based on resorcinol or tetrakisphenylolethane. The advantages of the inventively proposed accelerator/hardener combination are, for example, the excellent reactivity and very good storage stability. Moreover, the mechanical properties of the resins cured accordingly are likewise outstanding.
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申请公布号 |
CA2527099(C) |
申请公布日期 |
2012.03.27 |
申请号 |
CA20042527099 |
申请日期 |
2004.05.28 |
申请人 |
DEGUSSA AG |
发明人 |
ANTELMANN, BJORN;HUBER, SYLVIA;GUETHNER, THOMAS |
分类号 |
C08G59/40 |
主分类号 |
C08G59/40 |
代理机构 |
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