Blown and stripped plant-based oils
US8580988B2 · kind B2 · utility
13Cited by
17References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 2011 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | May 20, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11C3/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for producing a high viscosity, low volatiles blown stripped plant-based oil is provided. The method may include the steps of: (i) obtaining a plant-based oil; (ii) heating the oil to at least 90° C.; (iii) passing air through the heated oil to produce a blown oil having a viscosity of at least 50 cSt at 40° C.; (iv) stripping the blown oil from step (iii) to reduce an acid value of the blown oil to from 5 mg KOH/g to about 9 mg KOH/g; (v) adding a polyol to the stripped oil from (iv); and (vi) stripping the oil from step (v) to reduce the acid value of the oil to less than 5.0 mg KOH/g or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.