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    • 33. 发明授权
    • Method for polymerizing bis(allyl carbonate) resin
    • 聚合双(烯丙基碳酸酯)树脂的方法
    • US4613656A
    • 1986-09-23
    • US674115
    • 1984-11-23
    • Robert H. Tang
    • Robert H. Tang
    • C08F18/24C08F110/00
    • C08F18/24
    • Fully cured, intact, solid castings of bis(allyl carbonate) resin, e.g., diethylene glycol bis(allyl carbonate), are prepared by polymerizing the resin with between about 0.75 and about 1.50 parts, per hundred parts of resin, of a monoperoxycarbonate, e.g., tertiarybutylperoxy isopropyl carbonate. An adhesion reducing amount, e.g., between about 25 and about 75 parts, per million parts of resin, of a mold release agent is incorporated into the liquid resin monomer to avoid cracking of the casting. Use of a mold release agent is not required when the resin is prepolymerized to about 15-50 percent allylic utilization.
    • 通过将树脂与每100份树脂的单过氧碳酸酯的约0.75至约1.50份聚合制备双(烯丙基碳酸酯)树脂的完全固化,完整的固体铸件,例如二甘醇双(碳酸烯丙酯) 例如叔丁基过氧化异丙基碳酸酯。 将每百万份树脂的脱模剂的粘合降低量例如约25至约75份加入到液态树脂单体中以避免铸件破裂。 当树脂预聚合至约15-50%的烯丙基利用时,不需要使用脱模剂。
    • 35. 发明授权
    • Method for polymerizing ethylenically unsaturated monomer with novel
organic percarbonates
    • 用新型有机过碳酸酯聚合烯属不饱和单体的方法
    • US4522991A
    • 1985-06-11
    • US642304
    • 1984-08-20
    • Robert H. Tang
    • Robert H. Tang
    • C07C409/40C08F2/08C08F14/06C08F214/06C08F299/04C08F4/32
    • C07C255/00C08F299/0457
    • Organic peroxydicarbonates represented by the following graphic formula are described. ##STR1## In the formula, R and R' are each selected from an alkyl group containing from 1 to 4 carbon atoms, a cycloalkyl group of from 5 to 7 carbon atoms, a C.sub.1 -C.sub.4 alkyl substituted cycloalkyl group, or participate in a cycloalkyl group having from 5 to 7 carbon atoms, provided that when one of R and R' is cycloalkyl, the other is alkyl. The peroxydicarbonates are useful as initiators for the polymerization or copolymerization of ethylenically unsaturated monomers or the cross-linking of unsaturated polyester resins. The organic peroxydicarbonates can be used in combination with commercially available peroxydicarbonates, particularly those having a shorter half-life.
    • 描述由以下图形公式表示的有机过氧化二碳酸酯。 在该式中,R和R'各自选自含有1至4个碳原子的烷基,5至7个碳原子的环烷基,C 1 -C 4烷基取代的环烷基,或者参与 具有5至7个碳原子的环烷基,条件是当R和R'中的一个是环烷基时,另一个是烷基。 过氧二碳酸酯可用作烯属不饱和单体的聚合或共聚的引发剂或不饱和聚酯树脂的交联。 有机过氧碳酸氢盐可以与市售的过氧化二碳酸酯组合使用,特别是半衰期较短的那些。