Patent ID: 8735475

Claim:
A method of adjusting the reactivity and the gel time of resin mixtures based on radically polymerizable compounds, comprising adding a combination of a compound of general formula (I): wherein R 1 and R 2 independently of one another denote hydrogen or a branched or unbranched C 1 -C 20 alkyl group, X is —OR 3 or —NR 3 2 , where R 3 is a branched or unbranched C 1 -C 20 alkyl group or a C 2 -C 4 polyalkylene oxide group, with 2,6-di-tert-butyl-4-methylphenol or 2,6-di-tert-butyl-4-hydroxyanisole; for adjusting the reactivity and the gel time of resin mixtures based on radically polymerizable compounds; wherein the combination is a combination (III-1) of 2-(dimethylamino)pyrimidin-5-ol with 2,6-di-tert-butyl-4-methylphenol, a combination (III-2) of 2-(dimethylamino)-4,6-dimethylpyrimidin-5-ol with 2,6-di-tert-butyl-4-hydroxyanisole or a combination (III-3) of 4,6-dimethyl-2-(octyloxy)pyrimidin-5-ol with 2,6-di-tent-butyl-4-methylphenol.