申请人:Construction Research & Technology GmbH
公开号:EP2762471A1
公开(公告)日:2014-08-06
The present invention suggests a 2-oxo-1,3-dioxolane-4-carboxamide of formula (I),
wherein R is an n-valent radical, n is an integer from 2 to 10 and x is an integer from 1 to n-1. The invention furthermore suggests a process for the preparation of the 2-oxo-1,3-dioxolane-4-carboxamide of formula (I) from 2-oxo-1,3-dioxolane-4-carboxylic acid of formula (II)
with a polyisocyanate of the formula R(NCO)n, where R and n have the meanings given, and the use of the 2-oxo-1,3-dioxolane-4-carboxamide of formula (I) for the preparation of a 2-oxo-1,3-dioxolane-4-carboxamide-substituted prepolymer.
本发明提出了一种式(I)的2-氧代-1,3-二氧杂环戊烷-4-羧酰胺,
其中R是一个n价基团,n是从2到10的整数,x是从1到n-1的整数。该发明进一步提出了一种从式(II)的2-氧代-1,3-二氧杂环戊烷-4-羧酸制备式(I)的2-氧代-1,3-二氧杂环戊烷-4-羧酰胺的方法
与式R(NCO)n的多异氰酸酯反应,其中R和n具有所述的含义,并且使用式(I)的2-氧代-1,3-二氧杂环戊烷-4-羧酰胺制备2-氧代-1,3-二氧杂环戊烷-4-羧酰胺取代预聚合物。