Plastic and nonmetallic article shaping or treating: processes – Formation of solid particulate material directly from molten... – Utilizing electrical energy
Reexamination Certificate
2005-07-08
2010-06-15
Theisen, Mary Lynn F (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Formation of solid particulate material directly from molten...
Utilizing electrical energy
C264S483000, C264S484000, C264S485000, C264S080000, C425S006000, C425S174000, C425S17480R, C425S17480E
Reexamination Certificate
active
07736553
ABSTRACT:
The invention relates to processes for producing nanoparticles, especially pigment particles, comprising the following steps: i) bringing a base substance (1) into the gas phase, ii) generating particles by cooling or reacting the gaseous base substance (1), and iii) applying electrical charge to the particles during particle generation in step ii) in a nanoparticle generation apparatus. The invention further relates to apparatus for producing nanoparticles, having a feed line (28) for transporting the gas stream (29) into the apparatus, a particle generation and charging area for substantially simultaneous generation and charging of nanoparticles, and a takeoff line (30) for transporting the charged nanoparticles from the particle generation and charging area.
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Gelder Richard Van
Halpap Joerg
Kasper Gerhard
Marquard Andreas
Sachweh Bernd
BASF - Aktiengesellschaft
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Theisen Mary Lynn F
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