Apparatus for forming a permanent foam coating by atomization onto a substrate
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United States of America Patent
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Nov 3, 1992
Issued Date -
N/A
app pub date -
Nov 19, 1991
filing date -
Aug 4, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A apparatus of atomizing a high solids viscous composition onto a substrate and foaming the composition comprising mixing a coating composition with a gas forming agent under elevated pressure and temperature. The coating composition is airlessly atomized and projected onto a substrate. The gas remains dissolved in the coating after depositing on the substrate which causes the coating to foam after striking the substrate. The apparatus provides a permanent foam coating composition with uniform cell distribution. The apparatus is particularly suitable for foaming polymeric coatings such as plastisols and foods such as peanut butter or chocolate.
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