Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1993-03-10
1994-08-02
Schofer, Joseph L.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430904, G03G 900
Patent
active
053344731
ABSTRACT:
A continuous method of treating a polymer reaction mixture for continuously separating a styrene polymer and volatile ingredient by flowing down, for example, a mixture of low molecular weight styrene polisher and high molecular weight styrene polymer through a circular-ring-shaped space formed between a jacketed double pipe and a concentrically located inner pipe of a heat-exchanger, and flashing into a vacuum chamber connected with said heat-exchanger, is provided.
The polymer is useful for the preparation of electrophotographic toner.
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Noribumi Itou et al., "Method for continuously removing the volatile content of a reactive copolymer". English translation of Japan 56-24411, (Publication date: Mar. 9, 1981). pp. 3-4.
Patent Abstracts of Japan, vol. 12, No. 28 (C-471) [2875], Jan. 27, 1988; & JP-A 62 179 508 (Mitsui Toatsu Chem. Inc.) Jun. 8, 1987 *Whole Abstract.
Kobayashi Nobuki
Shin Masaaki
Shiraishi Yoku
Yamamoto Takashi
Mitsui Toatsu Chemicals Incorporated
Schofer Joseph L.
Wu David
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