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发明公开
CN101544598A 高效阻聚剂癸二酸二(2，2，6，6-四甲基-4-羟基哌啶)酯氮氧自由基及其生产方法 失效 - 权利终止

高效阻聚剂癸二酸二(2，2，6，6-四甲基-4-羟基哌啶)酯氮氧自由基及其生产方法
摘要：
本发明公开了一种高效阻聚剂癸二酸二(2，2，6，6－四甲基－4－羟基哌啶)酯氮氧自由基及其生产方法，是以癸二酸二(2，2，6，6－四甲基－4－羟基哌啶)酯、30％双氧水为原料，在钨酸钠∶四丁基溴化铵∶乙二胺四乙酸二钠＝1∶0.1～1.2∶0.01～0.1催化剂存在的条件下反应制得癸二酸二(2，2，6，6－四甲基－4－羟基哌啶)酯氮氧自由基；本发明用30％双氧水为氧化剂合成癸二酸二(2，2，6，6－四甲基－4－羟基哌啶)酯氮氧自由基，采用一种新型复合催化剂，简化了分离提纯过程，反应时间短，产品收率高，使产品的收率达到95％以上，得到产品纯度较高，能耗也大大的减少，环境污染小，成本低，是实现工业化生产的较理想的工艺。
摘要（英）：

The invention discloses a diester sebacate (2,2,6,6-tetramethyl-4-hydroxypiperidine) nitroxide radical of a high-efficiency polymerization inhibitor and a production method thereof. Diester sebacate (2,2,6,6-tetramethyl-4-hydroxypiperidine) and 30 percent of hydrogen peroxide are used as raw materials and react under the condition that a catalyst exists with the ratio of sodium tungstate, tetrabutylammonium bromide and disodium ethylene diamine tetraacetate to be 1:0.1-1.2:0.01-0.1 to obtain the diester sebacate (2,2,6,6-tetramethyl-4-hydroxypiperidine) nitroxide radical. By utilizing 30 percent of hydrogen peroxide as an oxidizer to synthesize the diester sebacate (2,2,6,6-tetramethyl-4-hydroxypiperidine) nitroxide radical and adopting a novel composite catalyst, the invention simplifies the separation and purification processes and has short reaction time, high product yield which reaches over 95 percent, higher product purity, great reduction of energy consumption, little environment pollution and low cost, thereby being a relatively ideal process for realizing industrial production.

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