Patent ID: 7442327
Filing Date: 2008-10-28
Classification: C09D,H01G,H05K

Abstract:
1. The use of a dispersion in the manufacture of an electrical device comprising the steps of: a) dispersing an electronic particulate solid in a liquid carrier utilizing a dispersant of formula 1 or formula 2 forming a dispersion, said electronic particulate solid comprising a dielectric material or a conductive material, b) applying said electronic particulate solid from said dispersion as a layer forming a dielectric layer or a electrically conductive track, and c) optionally firing said electronic particulate solid at 600-1200° C., wherein said dispersion comprises an electronic particulate solid, a carrier and a dispersant of formula 1 or formula 2 wherein R is hydrogen or a polymerisation terminating group; A is C B is C Z is hydroxyl or a basic group or a moiety containing a basic group; x is from 2 to 45; y is from 0 to 15; the ratio of x:y is not less than 3:1: X-x-x-X represents the polyamine or polyimine; Y represents the polyester chain moiety R—(O-A-CO)