PURPOSE: To obtain a high-detergency nonionic surfactant which has fluidity at low temperatures and much ease of handling at the time of transport and formulation by adding a specific amount of ethylene oxide and propyrene oxide at random to alcohol which contains a specific amount or more saturated straight-chain higher alcohol with a specific number of carbon.
CONSTITUTION: Alcohols such as palm alcohol and Dovanol used contain 50wt.% or higher of 8 to 18C saturated straight-chain higher alcohol such as n-octyl alcohol. In addition, an average 5 to 15 mols of ethylene oxide and an average 0.3 to 5.0 mols of propyrene oxide are added at random to such higher alcohols. If a nonionic surfactant is manufactured as described above, it is possible to lower the pour point preferably to 25°C and further preferably to 20°C or lower.
BAN NORIYUKI
KATABUCHI OSAMU
