Patent ID: 6660443
Filing Date: 2003-12-09
Classification: G03G

Abstract:
A dry toner, comprising a toner binder comprising a modified polyester selected from the group consisting of an amine-modified polyester, an acryl-modified polyester, a styrene-modified polyester, a silicone-modified polyester and mixtures thereof, wherein the modified polyester has a molecule weight distribution according to gel permeation chromatography having (a) a main peak is present in a molecular weight region of 1000 to 30,000, (b) that portion of the modified polyester having a molecule weight of at least 30,000 accounts for 1 to 10% based on a total weight of the modified polyester, and (c) a ratio (Mw/Mn) of the weight average molecular weight Mw of the modified polyester to the number average molecular weight Mn of the modified polyester is not smaller than 2 but not greater than 15.