{TAIL ~ A two component system} 1, wherein {HEAD ~ the catalysts} which are suitable for polymerization at high temperature, low temperature and under the influence of light are present in amounts of 0.01 to 10% by weight, based on the polymerizable material 
{ TAIL ~ A two component system } 1 , wherein { HEAD ~ the catalysts } which are suitable for polymerization at high temperature , low temperature and under the influence of light are present in amounts of 0.01 to 10 % by weight , based on the polymerizable material
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