Apparatus for preparing flowable reaction mixtures from at least two flowable reactants
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United States of America Patent
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Aug 4, 1998
Issued Date -
N/A
app pub date -
Mar 4, 1993
filing date -
Apr 26, 1989
priority date (Note) -
Expired
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Abstract
An apparatus for preparing flowable reaction mixtures from at least two flowable reactants in which the components are injected into a mixing chamber by means of injection nozzles, the force of the reactant acting upon the nozzle needle is at least substantially compensated to avoid impairing the mixing ratio during a change-over of the nozzle needle. The rear end of the nozzle needle is provided with a chamber communicating with the component supply line.
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