Back to results
US 11,639,479 B2Granted
Polyacrylamide antifoam components for use in diesel fuels
AssigneeThe Lubrizol Corporation
InventorsJames H. Bush, David M. Nickerson, Rochelle L. Kovach, Jayasooriya Sujith Perera, Elizabeth A. Schiferl, Kamalakumari K. Salem
Life of this patent
Estimating the term…
Abstract
There is disclosed an antifoam component which includes at least one acrylamide polymer for use in a diesel fuel. Acrylamide polymers prepared by polymerizing a (meth)acrylamide monomer to yield a homopolymer or, alternatively, the acrylamide polymer may be prepared by polymerizing a (meth)acrylamide monomer and a (meth)acrylate monomer to yield a heteropolymer.
Claims4
A composition comprising a diesel fuel and at least one acrylamide polymer prepared by polymerizing:
- fa) 1 wt % of a (meth)acrylamide monomer comprising N,N-diethylacrylamide (“NNDEAD”), N-(tertbutyl)acrylamide (“NTBAD”), or combinations thereof;
- and
- (b) 99 wt % a (meth)acrylate monomer prepared from a (meth)acrylate monomer comprising tert-butyl acrylate (“TBAT”) to yield a heteropolymer,
- wherein the at least one polymer is present in an amount from 1 ppm to 100 ppm by weight, based on a total weight of the composition.
1 more element
Dependencies are inferred from the claim text.