Patent ID: 8728620

Claim:
Fine particles consisting of a polymer, wherein the polymer consists of units obtained from: a macromer; a compound expressed by the following formula (1), wherein in the formula (1), R represents a hydrogen atom, a halogen atom, an alkyl group or an alkenyl group, “m” represents an integer of 1 to 10, and at least one of R represents the alkenyl group; and optionally, one or more reactive monomers selected from the group consisting of 2-ethylhexane (meth)acrylate, octyl (meth)acrylate, nonyl (meth)acrylate, decyl (meth)acrylate, lauryl (meth)acrylate, stearyl (meth)acrylate, vinyl laurate, lauryl methacrylamide, stearyl methacrylamide, methoxyethyl(meth)acrylate, ethoxyethyl(meth)acrylate, butoxyethyl(meth)acrylate, methyl(methacrylate, ethyl(meth)acrylate, butyl(meth)acrylate, hexyl(meth)acrylatecyclohexyl(meth)acrylate, benzyl(meth)acrylate, phenyl(meth)acrylate, syrene, vinyltoluene, vinyl acetate, ethyleneglycol di(meth)acrylate, and divinylbenzene.