Patent ID: 8980807
Filing Date: 2015-03-17
Classification: C11B

Abstract:
1. A method for producing a high viscosity, low volatiles blown stripped oil blend, the method comprising the steps of: (a) obtaining an oil blend of corn stillage oil and soybean oil having a weight ratio of corn stillage oil to soybean oil of from about 1:2 to 3:1; (b) heating the oil blend to at least 90° C.; (c) passing air through the heated oil blend to produce a blown oil having a viscosity of at least 50 cSt at 40° C.; and (d) stripping the blown oil from step (c) reduce an acid value of the blown oil to less than 5.0 mg KOH/gram; wherein the oil resulting from step (d) exhibits a viscosity of at least 60 cSt at 40° C. and a flash point of at least 290° C.