Plastic and nonmetallic article shaping or treating: processes – Recycling of reclaimed or purified process material – Of gaseous process material
Patent
1990-05-31
1995-03-28
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Recycling of reclaimed or purified process material
Of gaseous process material
264 406, 264321, 264344, 264348, C08J 1102, C08J 1118
Patent
active
054014484
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.
REFERENCES:
patent: Re32032 (1985-11-01), Pettingell
patent: 3061885 (1962-11-01), Rogers et al.
patent: 3874830 (1975-04-01), Carter et al.
patent: 3890414 (1975-06-01), Ricciardi et al.
patent: 4228076 (1980-10-01), Pettingell
patent: 4344903 (1982-08-01), Pascouet
patent: 4435523 (1984-03-01), Ponzielli
patent: 4504429 (1985-03-01), Griffiths
patent: 4537912 (1985-08-01), Griswold
patent: 4567008 (1986-01-01), Griffiths
patent: 4731208 (1988-03-01), Nakajima
patent: 5128379 (1992-07-01), Stone
J. H. Webb and A. C. M. Griffiths, Flexible Polyurethane Foam Slabstock Manufacture Through The Next Decade, 30th Annual Polyurethane Technical/Marketing Conference (1986) pp. 62-66.
Griffiths Anthony C. M.
Ricciardi Michael A.
Ortiz Angela Y.
Silbaugh Jan H.
Vertifoam International Limited
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