申请人:Endo Toshio
公开号:US20070049775A1
公开(公告)日:2007-03-01
A polyglycerol composition contains diglycerol, triglycerol, and tetraglycerol each in a content of 5 percent by weight or more, has a total content of diglycerol, triglycerol, and tetraglycerol of 75 percent by weight or more, has a total content of higher polyglycerol components of 10 percent by weight or less, the higher polyglycerol components each having a degree of polymerization of 7 or higher, and is substantially free from chlorine atom. A process prepares a polyglycerol composition by reacting glycerol and/or a polyglycerol with glycidol in the presence of an activated carbon catalyst.
一种聚
甘油组合物,其中二
甘油、三
甘油和四
甘油的含量均达到重量的5%或更多,其二
甘油、三
甘油和四
甘油的总含量达到重量的75%或更多,高聚
甘油成分的总含量不超过重量的10%,高聚
甘油成分的聚合度均达到7或更高,并且基本上不含
氯原子。一种方法通过在
活性炭催化剂存在下将
甘油和/或聚
甘油与环氧
丙烷反应来制备聚
甘油组合物。