Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent
1977-01-07
1979-05-22
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
Agglomeration or accretion
264 459, 264 53, 264 54, 264236, 264347, 264DIG9, 264DIG18, 425 4C, 425817C, 432 8, 432 59, 432197, 432210, B29D 2700, F28D 1102, F28F 2302
Patent
active
041559657
ABSTRACT:
Continuous method and apparatus for treatment of a solid material submerged in a body of liquid wherein the material is sticky and/or has weak tensile strength. The material is supported, while it is so submerged, by a dynamic layer of the liquid lying between the material and a moving surface. The method is illustrated by heating and thereby foaming a strip of heat foamable thermoplastic resin while it is held submerged in a denser heat transfer liquid by a dynamic layer of that liquid generated by a moving belt above the foaming material. In an example, expandable high density polyethylene strip is foamed continuously while it is so held submerged in molten salt.
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Anderson Philip
Dankert Lester J.
The Dow Chemical Company
Wills Thomas R.
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