Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – By mechanically introducing gas into material
Patent
1992-10-14
1993-12-21
Kuhns, Allan R.
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
By mechanically introducing gas into material
264 51, 264 55, 264DIG9, 264DIG10, B29C 6722
Patent
active
052718867
ABSTRACT:
A process and apparatus for rapidly expanding and molding carbon dioxide-impregnated polymer particles is disclosed. The process involves expanding the impregnated particles in a moving stream of pressurized saturated steam or super-heated steam, directing the resulting stream of pre-expanded particles into a mold, and molding the particles into a foamed object. Apparatus suitable for use with the process is also disclosed.
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Collom William
Fuller Dennis
Immel Richard H.
Kinslow Joseph
Meyer Bernard H.
Arco Chemical Technology L.P.
Kuhns Allan R.
Schuchardt Jonathan L.
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