Patent ID: 8362190

Claim:
A method for producing a hyperbranched polymer comprising: polymerizing a dithiocarbamate compound of Formula (1) by heating at 50 to 250° C., wherein R 1 is a hydrogen atom or a methyl group; R 2 and R 3 are individually a C 1-5 alkyl group, a C 1-5 hydroxyalkyl group, or a C 7-12 arylalkyl group, or R 2 and R 3 are optionally bonded to each other to form a ring together with a nitrogen atom; and A 1 is Formula (2) and/or Formula (3): and A 2 is a linear, branched or cyclic C 1-30 alkylene group that optionally contains an ether bond or an ester bond, and X 1 , X 2 , X 3 , and X 4 are each independently a hydrogen atom, a C 1-20 alkyl group, a C 1-20 alkoxy group, a halogen atom, a nitro group, a hydroxyl group, an amino group, a carboxyl group, or a cyano group; and adding a disulfide compound of Formula (8): wherein R 4 and R 5 are individually a C 1-5 alkyl group, a C 1-5 hydroxyalkyl group, or a C 7-12 arylalkyl group, or R 4 and R 5 are optionally bonded to each other to form a ring together with a nitrogen atom, and an amount of the disulfide compound to be added is 0.1 to 20% by mass based on a mass of the dithiocarbamate compound of Formula (1).