Process for producing composite resin for toner
AssigneeFujikura Kasei Co., Ltd.
InventorsYutaka Kukimoto, Hikoji Ueda, Kozo Suzuki, Yoshihiko Koshiyama
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Abstract
A process for producing a composite resin for a toner, comprising the steps of: mixing, in water, (a) a low-molecular weight polymer powder comprising particles, not less than 80% by weight of the particles having a diameter of from 20 to 2000 microns with (b) a high-molecular weight polymer emulsion; subjecting the thus obtained mixture to a coagulation treatment; and heating the resulting mixture to obtain a composite resin in which the low-molecular weight polymer particle and the high-molecular weight polymer are fixed and homogeneously mixed with each other.
Claims3
A process for producing a composite resin for a toner, comprising the steps of:
- mixing, in water, (a) low-molecular weight polymer powder comprising particles, not less than 80% by weight of said particles having a diameter of from 20 to 2000 microns, the weight average molecular weight of said low-molecular weight polymer being in the range of from 5,000 to 100,000, with (b) a high-molecular weight polymer emulsion, the weight average molecular weight of said high-molecular weight polymer being in the range of from 500,000 to 5,000,000;
- subjecting the thus obtained mixture to a coagulation treatment;
- and
- heating the resulting mixture to obtain a composite resin in which the low-molecular weight polymer particle and the high-molecular weight polymer are fixed and homogeneously mixed with each other.
Dependencies are inferred from the claim text.