Patent ID: 8067477

Claim:
A resin composition for electro-photographic toner comprising: a polyester resin (A) and an aliphatic crystalline polyester resin (B), wherein the polyester resin (A) is formed from the reaction of a monocarboxylic acid having an alkyl group in which a number of carbon atoms is within the range of from 20 to 80 or having an alkenyl group in which a number of carbon atoms is within the range of from 20 to 80 in a molecular terminal, at a weight ratio of 25 to 95% by weight of the resin, with a polyester resin (A1) having a main skeleton of multi-branched state polyester structure expressed by structural formula (1): wherein R represents an aliphatic hydrocarbon group, and n represents a number of the repeating units of a branch with a highest number of repeating units of the branched structure and is from 1 to 5, * a is a node of the carbon atom of a carbonyl group, *b is a node of an oxygen atom and is bonded to *a in another repeating unit.