Patent ID: 6355194
Filing Date: 2002-03-12
Classification: B29B,B29C,B29K,G03G

Abstract:
A process for the preparation of carrier consisting of the melt mixing of a mixture of binder resin, magnetic component, and colorant accomplished by(i) first melting said binder resin and colorant, thereby forming a polymer melt; (ii) introducing said magnetic component into the polymer melt; (iii) providing sufficiently high shear to disperse the colorant, and magnetic component in the polymer melt, pelletizing; (iv) cooling the polymer melt; (v) griding; and (vi) classification; and wherein microsynthetic carrier possesses a size of from about 25 to about 80 microns, and said colorant is present in an amount of at least about 10 percent by weight.