C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
18/32
C08J 9/36 (2006.01) B29C 35/16 (2006.01) B29C 44/56 (2006.01) B29C 71/02 (2006.01) C08J 11/02 (2006.01)
Patent
CA 2017991
CONTROLLED COOLING OF POROUS MATERIALS ABSTRACT Method and apparatus for cooling porous materials whereby first gases are passed through a porous material, such as polyurethane foam, in a first zone at a predetermined flow rate to cool the porous material and to remove volatiles therefrom in a first gas mixture which exits the porous material at a predetermined temperature. The first gas mixture is combined with second gases having a temperature which is lower than that of the first gas mixture to form a second gas mixture having a temperature which is sufficiently low to condense or sublime one or more of the volatiles. Thereafter, the second gas mixture is passed through the porous material to filter the condensed or sublimed volatiles thereon and to further cool the porous material. The flow rate of the heated gases is controlled to provide a controlled uniform cooling of the porous material, and additional filters may be utilized to remove particulate matter from either of the heated gases or the cold gases, or both.
Griffiths Anthony C. M.
Ricciardi Michael A.
Griffiths Anthony C. M.
Osler Hoskin & Harcourt Llp
Ricciardi Michael A.
Vertifoam International Limited
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