申请人:Rhodia Chimie
公开号:US07288213B1
公开(公告)日:2007-10-30
A method is described for preparing a tricondensate polyfunctional isocyanate composition, preferably having at least an isocyanurate and/or biuret group, which includes adding to a tricondensate polyfunctional isocyanate, or a mixture of different tricondensate polyfunctional isocyantes, obtained by (cyclo)condensation, in particular (cyclo)trimerization of one or several identical or different isocyanate monomers and optionally of another monomer, an allophanate of one or several identical or different isocyanates, or a mixture of different allophanates. The isocyanates or isocyanate monomer mixtures used for preparing the polyfunctional isocyanate(s) may be identical to or different from the isocyanate(s) or isocyanate mixture used for preparing the allophanate(s).
本文描述了一种制备三聚异氰酸酯组合物的方法,该组合物具有至少一个异氰酸酯基和/或双脲基,包括将一个或多个相同或不同的异氰酸酯单体和可选的另一单体进行(环)缩合,特别是(环)三聚化,得到的三聚异氰酸酯或不同三聚异氰酸酯的混合物中加入一个或多个相同或不同的异氰酸酯的异氨酸酯或不同异氨酸酯的混合物。用于制备多功能异氰酸酯的异氰酸酯或异氰酸酯单体混合物可以与用于制备异氨酸酯的异氰酸酯或异氰酸酯混合物相同或不同。