首页>
外国专利>
USING GLYCERIN OR POLYGLYCERIN ADDITION COMPOUNDS WITH ETHYLENE OXIDE / ETHYLENE OXIDE / PROPYLENE OXIDE TRANSFORMED WITH ALPHA-OLEFIN EPOXIDE AS ANTI-SPEED AGENTS
USING GLYCERIN OR POLYGLYCERIN ADDITION COMPOUNDS WITH ETHYLENE OXIDE / ETHYLENE OXIDE / PROPYLENE OXIDE TRANSFORMED WITH ALPHA-OLEFIN EPOXIDE AS ANTI-SPEED AGENTS
展开▼
机译:将甘油或聚甘油添加化合物与环氧乙烷/环氧乙烷/环氧丙烷(经α-烯烃环氧化合物转化)用作抗老剂
展开▼
页面导航
摘要
著录项
相似文献
摘要
The invention concerns the use of glycerol or polyglycerol addition compounds of general formula (I)[R]x-(EO)n-(PO)n-(AO)p-H, in which [R]x stands for a glycerol or polyglycerol group and EO designates an ethylene oxide unit, PO designates a propylene oxide unit and AO designates a group of formula (II), in which R' designates a linear alkyl group with between 2 and 18 carbon atoms, x is a number between 1 and 6, n is a number between 5 and 60, m is a number between 30 and 300, and p is a number between 1 and 10. The compound of formula (I) is prepared by adding n mol EO and m Mol PO per mol of glycerol or polyglycerol in a first step. In a second step, p mol of a linear alpha-olefin epoxide with between 4 and 20 carbon atoms per mol of alkoxylated glycerol or polyglycerol is added. The substances are used as antifoaming agents in aqueous systems, for example in the food, paper, paint and dye-making industries.
展开▼