Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Automatic analytical monitor and control of industrial process
Patent
1984-07-24
1986-02-25
Lacey, David L.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Automatic analytical monitor and control of industrial process
422111, 422116, 422132, G01N 2175, C08F 206
Patent
active
045728194
ABSTRACT:
An anionic polymerization apparatus includes a continuously stirred reactor, a conduit connected to the discharge of the continuously stirred tank reactor, the conduit being in operative communication with an optical apparatus to provide a first signal which varies as molecular weight of polymer in effluent from the continuously stirred tank reactor varies, the first signal passing to a flow control apparatus adjusting the initiator flow control apparatus to thereby provide molecular weight control of a polymer being prepared, a gel permeation chromatograph adapted to receive effluent from the continuously stirred reactor and measure the molecular weight of a polymer and provide a second signal indicative of the molecular weight of the polymer to the optical apparatus and adjust the optical apparatus to provide a desired first signal to thereby provide a polymer of a generally uniform molecular weight.
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Pirc Michael
Priddy Duane B.
Lacey David L.
The Dow Chemical Company
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