Accelerator mixture for peroxide hardener and two-component mortar system containing same

摘要

An accelerator mixture for peroxide hardeners, in particular an accelerator mixture for an organic peroxide-curing resin mixture, a two-component mortar system containing the same for chemical fastening and use of the same for chemical fastening of anchoring elements in boreholes are disclosed. Using a mixture of bis-N-substituted p-toluidines with bis-N-substituted anilines or bis-N-substituted m-toluidines, it is possible to provide a mortar composition for chemical fastening of anchoring elements in boreholes, which will have an improved low-temperature curing and improved load ratings at high temperatures with an extended gel time.

主权项

1. An accelerator mixture for peroxide-curing resin mixtures, comprising:
a main accelerator (I), and a co-accelerator (II), wherein the main accelerator (I) is a compound of formula (I) and the co-accelerator (II) is a compound of formula (II-1) or (II-2) in which R1 and R2, independently of one another, denote a C1 or C2 alkyl group, a C1-C3 hydroxyalkyl group or a mono- or polyethoxylated or propoxylated C1-C3 hydroxyalkyl group, and the molar ratio of (I):(II) is between 1:1 and 5:1.