FRANK HACKET,THOMAS HEY,FRANZISKA HAUSCHILD,HELMUT KNOLLER,MARTIN SCHIMMEL,KLAUS SOMMERMEYER
申请号:
BRPI0821133
公开号:
BRPI0821133A2
申请日:
2008.12.15
申请国别(地区):
BR
年份:
2015
代理人:
摘要:
The invention relates to a method for the preparation of a hydroxyalkyl starch derivative which comprises reacting hydroxyalkyl starch (HAS) via the optionally oxidised reducing end of the HAS with the amino group M of a crosslinking compound which , apart from the amino group, comprises a specifically protected carbonyl group, namely an acetal group or a ketal group.