Method and apparatus for applying non-chemically foamed multi-component curable polymers
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United States of America Patent
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Jan 21, 1992
Grant Date -
N/A
app pub date -
Aug 4, 1989
filing date -
Aug 4, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A two-component thermosetting polymer system is formed and dispensed by adding a foaming agent to one of two components of the polymer system. A solution of the foaming agent in the first component is formed in a supply tank. The foaming agent and first component solution is then mixed with a second component at a dispensing head or nozzle. By adding the foaming agent to only one of the two components and, in particular, by forming a solution of the foaming agent in the first component one is able to very carefully control the foam density of the cured end product.
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