申请人:ALLNEX IP S.à.r.l.
公开号:US10071972B2
公开(公告)日:2018-09-11
This invention relates to a process for the preparation of triazine carbamates by reacting a mixture of an aminotriazine A having at least two amino groups per molecule, an organic carbonate C, and a base B selected from the group consisting of alkoxides, and arylalkoxides of metals M, which may be alkali or earth alkali metals, and a solvent S which is a monohydric alcohol solvent R2OH or a mixture of solvents that comprises a monohydric alcohol R2OH, and a monohydric alcohol R3OH, or a mixture of solvents that comprises a monohydric alcohol R2OH with a further solvent selected from the group consisting of ether, alcohol, and hydrocarbon solvents, and adding to the products of the said reaction, an acid or a solution of an acid in a solvent.
本发明涉及一种三嗪氨基甲酸酯的制备方法,该方法是将每分子至少有两个氨基的氨基三嗪A、有机碳酸盐C和选自由金属M(可以是碱金属或土碱金属)的烷氧基和芳基烷氧基组成的组中的碱B的混合物与溶剂S(一元醇溶剂R2OH或由一元醇R2OH和一元醇R3OH组成的溶剂混合物或由一元醇R2OH和一元醇R3OH组成的溶剂混合物)反应、和溶剂 S,溶剂 S 是一元醇溶剂 R2OH 或由一元醇 R2OH 和一元醇 R3OH 组成的混合溶剂,或由一元醇 R2OH 和选自由醚、醇和烃溶剂组成的组中的另一种溶剂组成的混合溶剂,并在上述反应的产物中加入酸或酸在溶剂中的溶液。