申请人:CONSTRUCTION RESEARCH & TECHNOLOGY GMBH
公开号:US20150353521A1
公开(公告)日:2015-12-10
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 4, preferably from 2 to 3, 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, 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, and the 2-oxo-1,3-dioxolane-4-carboxamide-substituted prepolymer thus obtainable.
本发明提出了一种式为(I)的2-氧代-1,3-二氧杂环戊烷-4-羧酰胺,其中R是n价基团,n是2至4的整数,优选为2至3,x是1至n-1的整数。该发明还提出了一种从式为(II)的2-氧代-1,3-二氧杂环戊烷-4-羧酸和具有R(NCO)n式的多异氰酸酯(其中R和n具有所述含义)制备式为(I)的2-氧代-1,3-二氧杂环戊烷-4-羧酰胺的方法,以及使用式为(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-羧酰胺取代的预聚物,以及由此获得的2-氧代-1,3-二氧杂环戊烷-4-羧酰胺取代的预聚物。