Method of controlling the solvent vapor concentration in an apparatus

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United States of America Patent

PATENT NO 5277716
SERIAL NO

07716178

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Abstract

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The solvent vapor concentration which is mixed with air and is obtained in the treatment of articles in an apparatus is controlled in the apparatus by a method comprising the following steps: a) passing gaseous solvent vapor/air mixture from the apparatus through at least one adsorber containing an adsorbent for the organic solvent and recycling the outlet gas stream from the adsorber to the apparatus; b) after completion of the adsorption, opening the apparatus to enable removal of treated articles from the apparatus and closing the apparatus; c) heating the adsorbent and passing a gas stream from the apparatus through the adsorber and recycling the outlet stream from the adsorber directly to the apparatus.

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Patent Owner(s)

Patent OwnerAddress
DOW CHEMICAL COMPANY THE2030 DOW CENTRE ABBOTT ROAD MIDLAND MICHIGAN 48640 UNITED STATES OF AMERICA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boppart, Stephan W Wadenswil, CH 1 6
Kumin, Marius A M Cham, CH 2 66

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