Method and apparatus for spraying viscous adhesives
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United States of America Patent
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Apr 18, 1995
Grant Date -
N/A
app pub date -
Oct 20, 1993
filing date -
Oct 20, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for spraying adhesive compositions having a high solids content comprises a source of supercritical fluid diluent such as supercritical carbon dioxide, a source of virgin adhesive, an adhesive dispenser and a mixer communicating with each source of material and with the dispenser. The mixer includes a dynamic mixing element which agitates the viscous adhesive material allowing the supercritical carbon dioxide to be effectively dispersed into the adhesive, thus forming an adhesive composition with a high solids content having a relatively low viscosity suitable for spray application of the adhesive.
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