The Lubrizol Corporation

Kevin J Hughes

David M Nickerson

Elizabeth A Schiferl

James H Bush

Jayasooriya Sujith Perera

Rochelle L Kovach

William R S Barton

Dennis M Dishong

Kamalakumari Kunchithapatham Salem

Michael E Huston

Sujith Perera

Alonzo Smith

Donald J Knobloch

William RS Barton

Tina M Adams

Christopher H Joniec

There is disclosed an antifoam component which includes at least one poly(acrylate) copolymer for use in a fuel. Poly(acrylate) polymers prepared by polymerizing a (meth)acrylate monomer comprising Cto Calkyl esters of (meth)acrylic acid ('multifunctional monomer') are also disclosed. Other poly(acrylate) polymers prepared by polymerizing (i) a (meth)acrylate monomer comprising Cto Calkyl esters of (meth)acrylic acid (“solubility monomer”); (ii) a (meth)acrylate monomer comprising Cto Calkyl esters of (meth)acrylic acid (“surface tension monomer”); and (iii) optionally at least one additional monomer comprising a solubility monomer, a surface tension monomer, a monomer comprising Cto Calkyl esters of (meth)acrylic acid (“multifunctional monomer”), or combinations thereof are also disclosed.

Polyacrylate antifoam components for use in fuels

There is disclosed an antifoam component for a mechanical device which includes a fluorinated poly(acrylate) copolymer. The antifoam component has improved foam performance and thermal stability in finished fluids, such as driveline fluids.

Fluorinated polyacrylate antifoam components for lubricating compositions

There is disclosed an antifoam component for a mechanical device which includes a poly(acrylate) copolymer. The antifoam component has improved foam performance in finished fluids utilizing dibutyl hydrogen phosphite compounds, such as driveline fluids. A lubricating composition comprising a) at least one oil of lubricating viscosity; and b) an antifoam component comprising a poly(acrylate) copolymer. The poly(acrylate) copolymer, b) may include (i) from about 30 wt % up to about 99 wt % of a (meth)acrylate monomer having Cto Calkyl esters of (meth)acrylic acid; and (ii) from about 1 wt % up to about 70 wt % of a fluorinated (meth)acrylate monomer.

Fluorinated polyacrylates antifoams in ultra-low viscosity (&#x3c;5 CST) finished fluids

There is disclosed an antifoam component which includes at least one poly(acrylate) copolymer for use in a diesel fuel. Poly(acrylate) polymers prepared by polymerizing a (meth)acrylate monomer comprising Cto Calkyl esters of (meth)acrylic acid ('multifunctional monomer') are also disclosed. Other poly(acrylate) polymers prepared by polymerizing (i) a (meth)acrylate monomer comprising Cto Calkyl esters of (meth)acrylic acid ('solubility monomer'); (ii) a (meth)acrylate monomer comprising Cto Calkyl esters of (meth)acrylic acid (&#x201c;surface tension monomer&#x201d;); and (iii) optionally at least one additional monomer comprising a solubility monomer, a surface tension monomer, a monomer comprising Cto Calkyl esters of (meth)acrylic acid (&#x201c;multifunctional monomer&#x201d;), or combinations thereof are also disclosed.

Polyacrylate antifoam components for use in diesel fuels

Growing community of inventors

Sammamish, WA, United States of America

Kevin J Hughes