Measuring and testing – Instrument mechanism or transmission – Rate of change
Patent
1997-02-06
1998-05-12
Raevis, Robert
Measuring and testing
Instrument mechanism or transmission
Rate of change
430137, B29C 4776
Patent
active
057509093
ABSTRACT:
An apparatus for the preparation of a mixture of toner resin and initiator, to form a toner resin or toner mixture including cross-linked microgel particles is provided. The apparatus includes a toner extruder having the resin being conveyed therethrough and an adder for adding the initiator to the toner resin in the toner extruder to form the toner resin or mixture. The apparatus also includes a measurer for measuring the cross-linked microgel particles in the toner mixture substantially immediately after mixing in the toner extruder and transmitting a signal indicative of the quantity of cross-linked microgel particles in the toner resin or mixture. The apparatus also includes a controller for controlling the addition rate of initiator in response to the signals from the measurer.
REFERENCES:
patent: 4973439 (1990-11-01), Chang et al.
patent: 5223562 (1993-06-01), Sagawa et al.
patent: 5227460 (1993-07-01), Mahabadi et al.
Horalek et al.; "Measuring apparatus for automated monitoring of the curing process using near-infrared spectroscopy"; International Polymer Science and Technology; vol. 19, No. 12, 1992.
Chang Hui
Chung Joo T.
Dewan Jennifer E.
Hawkins Michael G.
Ianni John J.
Raevis Robert
Wagley John S.
Xerox Corporation
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