由碱金属组成的

The invention relates to a method for making oligomeric isocyanates by reacting diisocyanates in the presence of a catalyst, wherein the catalyst comprises a saline compound prepared from an anion selected from 1,2,3- or 1,2,4-triazole, a substituted species of 1,2,3- or 1,2,4-triazole and carbocyclically and/or heterocyclically annellated species of 1,2,3- or 1,2,4-triazole and the cation selected from an alkali metal, alkaline-earth metal and/or monovalent ammonium cation and/or phosphonium cation of formula (5), wherein the E, R1, R2, R3, R4 are as defined in the descriotion.

本发明涉及一种制备低聚异氰酸酯的方法，包括二异氰酸酯在催化剂的存在下进行反应，其中所述催化剂由盐化合物组成，该盐化合物由选自1，2，3-或1，2，4-三唑、1，2，3-或1，2，4-三唑的取代系列者、1，2，4-三唑的碳环稠合系列者、1，2，3-或1，2，4-三唑的杂环稠合系列者的化合物及其混合物的阴离子和选自碱金属、碱土金属和/或通式(5)的一价铵阳离子和/或磷友衾胱拥难衾胱又票福其中E、R 1 、R 2 、R 3 和R 4 如说明书中所定义。

By and large seed 7-12, 4-6 species are the main materials such as quartz sand, limestone, feldspar, soda ash, boric acid, lead compounds, barium compounds, and so on, according to theintroduction of the oxide in the glass structure of the role, Into the glass forming oxides of raw materials, intermediate raw materials of oxide, network-oxide materials, according to the introduction of the nature of the oxide, acid oxides can be divided into raw materials, base metal oxide materials.

大体由7-12种组成，主体料有4-6种，如石英砂、石灰石、长石、纯碱、硼酸、铅化合物、钡化合物等，按所引入氧化物在玻璃结构中的作用，可分为玻璃形成氧化物的原料、中间体氧化物的原料、网络外体氧化物的原料，按所引入氧化物的性质，可分为酸性氧化物的原料、碱金属氧化物的原料。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。