Patent ID: 6821703
Filing Date: 2004-11-23
Classification: C08G,C08J,G03G

Abstract:
A method for producing a polyester resin particle dispersion material, comprising dispersing a resin melt containing, as an essential component, a polyester resin (A) having a terminal structure in which an alkyl group having 4 to 20 carbon atoms or an alkenyl group having 4 to 20 carbon atoms is bonded to a carbon atom to which a carboxyl group is attached, or a carbon atom adjacent to this carbon atom, a portion or all of carboxyl groups in the polyester resin (A) being neutralized with a basic compound, in a heated aqueous medium in a melted state, and cooling the dispersed resin melt,wherein the polyester resin (A) is a branched polyester resin produced by ring opening reaction of an acid anhydride having a C4-20 alkyl group or a C4-20 alkenyl group with a hydroxyl group of a branched polyester resin (a) having a hydroxyl group at a terminal.