Method and apparatus for producing closed cell foam
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United States of America Patent
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Jan 2, 1996
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N/A
app pub date -
Sep 27, 1994
filing date -
Sep 27, 1994
priority date (Note) -
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Abstract
Methods and apparatus for producing high quality closed cell foams for use in applications such as coatings, sealant beads, seam filling and gaskets. An in-line single pass static mixing device containing a very large number of individual mixing elements is used to homogeneously disperse a gas throughout a highly viscous liquid polymeric material such as a plastisol, silicone, butyl or urethane based material.
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