Back to results
US 2012/0055080 A1Published application
Antioxidant compositions useful in biodiesel and other fatty acid and acid ester compositions
AssigneeEastman Chemical Company
InventorsThomas Edward Carter, Joy Lynn Laningham, Phillip Montgomery Hudnall, Sharon Metcalf Cline
Life of this patent
Estimating the term…
Abstract
Compositions containing phenolic antioxidant solutions are provided. The invention further provides methods of making and using such compositions as well as compositions that contain both biodiesel and at least one antioxidant concentrate solutions and blended fuel compositions containing biodiesel blended with other fuels.
Claims60
A composition comprising:
- a) at least about 22% by weight of at least one phenolic antioxidant;
- b) at least about 0.5% by weight of at least one metal chelating compound;
- and
- c) at least one solvent comprising at least one compound selected from glycols, glycol ethers, glycol ether ester compounds, C1-C25 monofunctional alcohols, C1-C25 esters, C3-C14 ketones, C2-C10 amides, C2-C10 ethers, and nitro compounds,
- wherein at least one phenolic antioxidant and at least one metal chelating compound are dissolved in the solvent, and the composition is readily miscible in biodiesel.
2 more elements
A composition comprising:
- a) at least about 15% by weight of a phenolic antioxidant;
- b) at least about 0.5% by weight of a metal chelating compound;
- and
- c) at least one solvent comprising at least one compound selected from glycols, glycol ethers, glycol ether ester compounds, C1-C25 monofunctional alcohols, C1-C25 esters, C3-C14 ketones, C2-C10 amides, C2-C10 ethers, and nitro compounds, wherein the phenolic antioxidant and metal chelating compound are dissolved in the solvent, the composition comprises 0% to 10% by weight of total surface active agents, and the composition is readily miscible in biodiesel.
1 more element
A method comprising:
- dissolving at least one metal chelating compound in a first solvent to form a first solution, and
- combining at least one phenolic antioxidant with the first solution to form a composition.
Dependencies are inferred from the claim text.