| 摘要 |
1,138,643. Peroxydicarbonates. WALLACE & TIERNAN Inc. 27 Jan., 1967 [23 March, 1966], No. 4292/67. Heading C2C. [Also in Division C3] The invention comprises di-secondary-butyl peroxydicarbonate which is prepared by reacting sec.-butyl chloroformate with aqueous hydrogen peroxide in the presence of an alkaline reagent at below 20‹ C. The compound is used as an initiator for the preparation of polymers or copolymers of ethylenically unsaturated monomers. |
