Mixing kneader and process for preparing poly(meth)acrylates...

Details Mixing kneader and process for preparing poly(meth)acrylates... Mixing kneader and process for preparing poly(meth)acrylates...

2005-09-28

2011-12-06

Cooley, Charles E (Department: 1774)

Agitating

Rubber or heavy plastic working

Stationary mixing chamber

C366S193000, C366S301000

Reexamination Certificate

active

08070351

ABSTRACT:
The invention relates to a mixing kneader comprising at least two shafts (2,3) configured as hollow shafts, on whose surfaces kneading bars (4) are disposed on elements (5). The construction of the shafts is selected in such a way that the resonant frequencies of the shafts have a separation of at least 5% from the excitation frequencies. At least one of the shafts is preferably flowed through by a temperature-control medium, the inlet being disposed on one side and the outlet on the other side of the shaft. The mixing kneader preferably comprises at least one orifice above the shafts which is configured as a dome, the dome being closed by a displacer (22). In addition, at least one orifice for product withdrawal is provided, whose orifice cross section is adjustable during operation.

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