Liquid biodegradable surfactant having oxyethylene and oxypropylene groups attached to the residue of an alcohol having a minimum iodine value of at least 40 wherein the ratio of oxyethylene groups to oxypropylene groups is at least 4:1, and the total moles of oxyethylene and oxypropylene groups is about...http://www.google.com/patents/US4668423?utm_source=gb-gplus-sharePatent US4668423 - Liquid biodegradable surfactant and use thereof
