Dispersion resin composition

A dispersion resin composition, consisting of:

• a modified polyolefin resin in which a modification component comprising an α,β-unsaturated carboxylic acid derivative with a ring structure is introduced to a polyolefin resin;
• an aqueous dispersion medium;
• and
• optionally, an emulsifier, a neutralizer, an organic solvent, a curing agent or an adhesive component,
• wherein
• if present, an amount of the emulsifier is less than 10% by weight of the composition,
• the modified polyolefin resin is not linked to a polyether resin,
• an average particle diameter of the modified polyolefin resin in the dispersion resin composition is 50 nm or more and 210 nm or less, and
• the modified polyolefin resin has a degree of ring opening, of equation (1), of 70 or more:
• degree of ring opening=modification degree K×rate of ring opening R, (1):
• wherein the modification degree K represents a containing rate (% by weight) of the α,β-unsaturated carboxylic acid derivative relative to the polyolefin resin, and the rate of ring opening R represents a rate of ring opening (%) of the ring structure in the α,β-unsaturated carboxylic acid derivative.