Stabilized cationic latex
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United States of America Patent
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Apr 1, 1986
Grant Date -
N/A
app pub date -
Mar 27, 1985
filing date -
Mar 27, 1985
priority date (Note) -
Expired
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Abstract
Mechanical stability and coating characteristics of structurally cation-active, film-forming latex, especially useful in electrodeposition coatings can be improved by the addition of small stabilizing amounts of linear cationic amine-modified epoxy resin having tertiary amine functionality and base number in the range of 30-500. Such stabilized latex remain substantially non-agglomerated even after being subjected to pumping and shear. The improved latex and process circumvent the purification steps, i.e. ion exchange and also ultrafiltration, often required treatments to render latex compositions suitable for electrodeposition coatings. The thickness of the film electrodeposited on the metal can be controlled by proper selection of the stabilizer amount and/or system voltage.
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