Fluoroelastomer component for contacting ammonia and/or urea
Assignee3M Innovative Properties Company
InventorAlain Verschuere
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Abstract
Described herein is a component for contacting ammonia and/or urea having a surface that in use will come into contact with urea and/or ammonia. The component comprises fluoroelastomer composition comprising fluoropolymer and a hydrotalcite compound.
Claims20
A component for contacting ammonia and/or urea having a surface that is in contact with at least one of urea and ammonia, the surface comprising a fluoroelastomer composition comprising a fluoropolymer and a hydrotalcite compound, wherein the component is part of an exhaust system and wherein the fluoropolymer comprises 50 to 80% by moles of repeating units derived from vinylidene fluoride, tetrafluoroethylene, and hexafluoropropylene.
A method comprising utilizing a hydrotalcite compound in a fluoroelastomer composition of a component for contacting ammonia and/or urea to prevent or reduce swelling of the fluoroelastomer composition when the fluoroelastomer composition is contacted with at least one of urea and ammonia, wherein the component is part of an exhaust system and wherein a fluoropolymer of the fluoroelastomer composition comprises 50 to 80% by moles of repeating units derived from vinylidene fluoride, tetrafluoroethylene, and hexafluoropropylene.
Dependencies are inferred from the claim text.