Patent ID: 8048502

Claim:
A readily degradable resin composition comprising: an aliphatic polyester (A) which is biodegradable; and an aliphatic polyester (B) dispersed in said aliphatic polyester (A), which is biodegradable at a higher degradation rate than that of the aliphatic polyester (A) and which has a melt viscosity of 50 Pa·S or less at 190° C. and at a shear rate of 1 rad/s or a solution viscosity (η inh) of 0.25 dl/g or less measured under conditions of a concentration of 0.4 g/dl and of a temperature of 30° C. in a solvent of m-chlorophenol and 1,2,4-trichlorobenzene mixed at a weight ratio of 4:1, wherein the aliphatic polyester (B) has a solubility parameter calculated by the Fedors method of 25 or more and a content of the aliphatic polyester (B) within the composition is 1 to 30% by weight, and wherein the aliphatic polyester (B) is hydrolyzed inside the readily degradable resin composition and the eluted acid component hydrolyzes the aliphatic polyester (A) to accelerate degradation.