Patent ID: 8552141
Filing Date: 2013-10-08
Classification: C08G,G03G

Abstract:
1. A hyper-branched polyester consisting of a tri-hydroxyl monomer A3, selected from a group consisting of glycerol and trimethanolpropane, a di-acid monomer B2, selected from the group consisting of a dodecenyl succinic anhydride and a 2-dodecen-1-yl-succinic anhydride, and a mono-acid monomer C1, wherein a molar ratio of A3:B2:C1 is from about 1:0.2:2 to about 1:1.4:0.2; and the mono-acid monomer C1 contains a crystallinity functional group having a polyethylene substituted carboxylic acid with carbon chain lengths of C≧25 and the hyper-branched polyester is used in a chemically processed electrophotographic toner.