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at room temperature with ketone peroxides in the presence of cobaltkatalysatorer to non grønfarvede formstoffer hærdelige mixtures of unsaturated polyesters and tilpolymeriserbare,monomeric ethylenisk
at room temperature with ketone peroxides in the presence of cobaltkatalysatorer to non grønfarvede formstoffer hærdelige mixtures of unsaturated polyesters and tilpolymeriserbare,monomeric ethylenisk