Process and device for the preparation of flowable reaction mixtures
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United States of America Patent
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Feb 27, 1990
Grant Date -
N/A
app pub date -
Aug 14, 1989
filing date -
Aug 18, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In order to keep the reversing times from circulation of the reaction components to mixing and vice versa as short as possible for the purpose of good mixing in the initial and end phases in the preparation of flowable reaction mixtures by high-pressure mixing, the holding pressure applied to the flow reversing element is maintained by a releasable non-return valve until the full hydraulic reversing pressure has built up on the opposite side, and only then is the non-return valve released.
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