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    • 3. 发明申请
    • A PROCESS FOR THE PRODUCTION OF CYANATE ESTER RESINS HAVING UNIQUE COMPOSITION
    • 一种生产具有独特成分的氰酸酯树脂的方法
    • WO1997019970A1
    • 1997-06-05
    • PCT/US1996018277
    • 1996-11-21
    • ALLIEDSIGNAL INC.
    • ALLIEDSIGNAL INC.BEDWELL, William, B.SWEDO, Raymond, L.DEBONA, Bruce, T.GREEN, George, D.
    • C08G08/28
    • B01J19/2415B01J2219/00058B01J2219/00099B01J2219/00166B01J2219/00186C08G8/28
    • A continuous process for the production of a phenolic-based cyanate ester resin is provided and includes the steps of: feeding a phenolic organic compound, a trialkylamine and a cyanogen halide into a continuous, plug-flow type reactor; causing the reactants to flow through and react in the reactor over a period of time defined as a residence time; continuously reacting the phenolic organic compound, the trialkylamine and the cyanogen halide in the reactor; and maintaining a temperature in the reactor of between -75 DEG C to 0 DEG C. The reactor has a length which is equal to or greater than ten times its internal diameter. The mol equivalent concentration of the cyanogen halide is greater than the mol equivalent concentration of the trialkylamine, and the mol equivalent of the trialkylamine is greater than the mol equivalent of the phenolic organic compound. The reactants are resident for a long enough time in the reactor to achieve at least substantial conversion of the phenol groups to cyanate ester groups, but for short enough a time to substantially suppress undesirable side reactions. The phenolic-based cyanate ester resins prepared by the continuous process may contain as much as 95 percent by weight or more cyanate ester groups.
    • 提供了一种用于生产酚类氰酸酯树脂的连续方法,包括以下步骤:将酚类有机化合物,三烷基胺和氰卤化物进料到连续的流动型反应器中; 使反应物在定义为停留时间的时间内流过并在反应器中反应; 在反应器中使酚类有机化合物,三烷基胺和氰卤化物连续反应; 并将反应器中的温度保持在-75℃至0℃之间。反应器的长度等于或大于其内径的十倍。 氰卤化物的摩尔当量浓度大于三烷基胺的摩尔当量浓度,三烷基胺的摩尔当量大于酚类有机化合物的摩尔当量。 反应物在反应器中驻留足够长的时间以实现酚基团至少基本上转化为氰酸酯基团,但足够短的时间以基本上抑制不期望的副反应。 通过连续方法制备的酚基氰酸酯树脂可以含有多达95重量%或更多个氰酸酯基团。
    • 4. 发明申请
    • PROCESS FOR PRODUCTION OF MULTICYANATE ESTERS
    • 生产多糖酯的方法
    • WO1996023013A1
    • 1996-08-01
    • PCT/IB1996000168
    • 1996-01-29
    • ALLIEDSIGNAL INC.
    • ALLIEDSIGNAL INC.ROTH, David, W., H., Jr.DAS, Sajal
    • C08G08/28
    • C08G8/28Y10S210/904Y10S210/908
    • The invention is directed to a process of preparing multicyanate esters by: a) reacting an adduct of a tertiary amine and a phenol-formaldehyde oligomer with cyanogen halide in a solvent to form a reaction product stream containing at least one compound selected from the group consisting of tertiary amine-hydrohalide salt, solvent, and impurities, and, based upon the total weight of the reaction product stream excluding the weight of the tertiary amine-hydrohalide salt, from about 10 percent to about 40 percent of a multicyanate ester; b) recycling a portion of the reaction product stream into the mixture of step a; and c) separating and recovering the solvent and tertiary amine from the reaction product stream. The multicyanate ester products produced are useful as bonding agents in friction materials, molding materials, coatings, and adhesives.
    • 本发明涉及通过以下方法制备多氰酸酯的方法:a)使叔胺和苯酚 - 甲醛低聚物的加合物与氰卤化物在溶剂中反应,形成含有至少一种选自以下的化合物的反应产物流: 的叔胺 - 氢卤酸盐,溶剂和杂质,并且基于除了叔胺 - 氢卤酸盐的重量之外的反应产物流的总重量,约10%至约40%的多氰酸酯; b)将一部分反应产物流再循环到步骤a的混合物中; 和c)从反应产物流中分离和回收溶剂和叔胺。 所生产的多氰酸酯产物可用作摩擦材料,模塑材料,涂料和粘合剂中的粘合剂。